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[o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Skrá inn</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Síður fyrir útskráða notendur <a href="/wiki/Hj%C3%A1lp:Introduction" aria-label="Læra meira um breytingar"><span>Læra meira</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Kerfiss%C3%AD%C3%B0a:Framl%C3%B6g_m%C3%ADn" title="Listi yfir breytingar frá þessu IP-staðfangi [y]" accesskey="y"><span>Framlög</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Kerfiss%C3%AD%C3%B0a:Spjallas%C3%AD%C3%B0a_m%C3%ADn" title="Spjall um breytingar frá þessu IP-staðfangi [n]" accesskey="n"><span>Spjall</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Vefsíða"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Efni" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Efni</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">færa í hliðarstiku</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">fela</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Byrjun</div> </a> </li> <li id="toc-Tegundir" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Tegundir"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Tegundir</span> </div> </a> <button aria-controls="toc-Tegundir-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Sýna/fela Tegundir undirkafla</span> </button> <ul id="toc-Tegundir-sublist" class="vector-toc-list"> <li id="toc-Etanól" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Etanól"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>Etanól</span> </div> </a> <ul id="toc-Etanól-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Metan" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Metan"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>Metan</span> </div> </a> <ul id="toc-Metan-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Lífdísill" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Lífdísill"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.3</span> <span>Lífdísill</span> </div> </a> <ul id="toc-Lífdísill-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Metanól" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Metanól"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.4</span> <span>Metanól</span> </div> </a> <ul id="toc-Metanól-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Syngas" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Syngas"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.5</span> <span>Syngas</span> </div> </a> <ul id="toc-Syngas-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Tilvísanir" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Tilvísanir"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Tilvísanir</span> </div> </a> <ul id="toc-Tilvísanir-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Heimildir" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Heimildir"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Heimildir</span> </div> </a> <ul id="toc-Heimildir-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Tenglar" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Tenglar"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Tenglar</span> </div> </a> <ul id="toc-Tenglar-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Efni" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Sýna/fela efnisyfirlit" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Sýna/fela efnisyfirlit</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading">„Lífeldsneyti“: Munur á milli breytinga</h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Fara á grein á öðru tungumáli. Til staðar á 78 tungumálum" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-78" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">78 tungumál</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B7%D8%A7%D9%82%D8%A9_%D8%AD%D9%8A%D9%88%D9%8A%D8%A9" title="طاقة حيوية – arabíska" lang="ar" hreflang="ar" data-title="طاقة حيوية" data-language-autonym="العربية" data-language-local-name="arabíska" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Bioyanacaq" title="Bioyanacaq – aserska" lang="az" hreflang="az" data-title="Bioyanacaq" data-language-autonym="Azərbaycanca" data-language-local-name="aserska" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-ba mw-list-item"><a href="https://ba.wikipedia.org/wiki/%D0%91%D0%B8%D0%BE%D1%8F%D2%93%D1%8B%D1%83%D0%BB%D1%8B%D2%A1" title="Биояғыулыҡ – baskír" lang="ba" hreflang="ba" data-title="Биояғыулыҡ" data-language-autonym="Башҡортса" data-language-local-name="baskír" class="interlanguage-link-target"><span>Башҡортса</span></a></li><li class="interlanguage-link interwiki-bat-smg mw-list-item"><a href="https://bat-smg.wikipedia.org/wiki/Biuodegal%C4%81" title="Biuodegalā – Samogitian" lang="sgs" hreflang="sgs" data-title="Biuodegalā" data-language-autonym="Žemaitėška" data-language-local-name="Samogitian" class="interlanguage-link-target"><span>Žemaitėška</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%91%D1%96%D1%8F%D0%BF%D0%B0%D0%BB%D1%96%D0%B2%D0%B0" title="Біяпаліва – hvítrússneska" lang="be" hreflang="be" data-title="Біяпаліва" data-language-autonym="Беларуская" data-language-local-name="hvítrússneska" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%91%D1%96%D1%8F%D0%BF%D0%B0%D0%BB%D1%96%D0%B2%D0%B0" title="Біяпаліва – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Біяпаліва" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%91%D0%B8%D0%BE%D0%B3%D0%BE%D1%80%D0%B8%D0%B2%D0%BE" title="Биогориво – búlgarska" lang="bg" hreflang="bg" data-title="Биогориво" data-language-autonym="Български" data-language-local-name="búlgarska" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%9C%E0%A7%88%E0%A6%AC%E0%A6%9C%E0%A7%8D%E0%A6%AC%E0%A6%BE%E0%A6%B2%E0%A6%BE%E0%A6%A8%E0%A7%80" title="জৈবজ্বালানী – bengalska" lang="bn" hreflang="bn" data-title="জৈবজ্বালানী" data-language-autonym="বাংলা" data-language-local-name="bengalska" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Biogorivo" title="Biogorivo – bosníska" lang="bs" hreflang="bs" data-title="Biogorivo" data-language-autonym="Bosanski" data-language-local-name="bosníska" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Biocombustible" title="Biocombustible – katalónska" lang="ca" hreflang="ca" data-title="Biocombustible" data-language-autonym="Català" data-language-local-name="katalónska" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D8%B3%D9%88%D9%88%D8%AA%DB%95%D9%85%DB%95%D9%86%DB%8C%DB%8C_%D8%B2%DB%8C%D9%86%D8%AF%DB%95%DB%8C%DB%8C" title="سووتەمەنیی زیندەیی – miðkúrdíska" lang="ckb" hreflang="ckb" data-title="سووتەمەنیی زیندەیی" data-language-autonym="کوردی" data-language-local-name="miðkúrdíska" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Biopalivo" title="Biopalivo – tékkneska" lang="cs" hreflang="cs" data-title="Biopalivo" data-language-autonym="Čeština" data-language-local-name="tékkneska" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%91%D0%B8%D0%BE%D1%85%D1%83%D1%82%D0%BA%C4%83%C3%A7" title="Биохуткăç – sjúvas" lang="cv" hreflang="cv" data-title="Биохуткăç" data-language-autonym="Чӑвашла" data-language-local-name="sjúvas" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Biobr%C3%A6ndsel_og_biobr%C3%A6ndstof" title="Biobrændsel og biobrændstof – danska" lang="da" hreflang="da" data-title="Biobrændsel og biobrændstof" data-language-autonym="Dansk" data-language-local-name="danska" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Biokraftstoff" title="Biokraftstoff – þýska" lang="de" hreflang="de" data-title="Biokraftstoff" data-language-autonym="Deutsch" data-language-local-name="þýska" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%92%CE%B9%CE%BF%CE%BA%CE%B1%CF%8D%CF%83%CE%B9%CE%BC%CE%B1" title="Βιοκαύσιμα – gríska" lang="el" hreflang="el" data-title="Βιοκαύσιμα" data-language-autonym="Ελληνικά" data-language-local-name="gríska" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Biofuel" title="Biofuel – enska" lang="en" hreflang="en" data-title="Biofuel" data-language-autonym="English" data-language-local-name="enska" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Biobrula%C4%B5o" title="Biobrulaĵo – esperantó" lang="eo" hreflang="eo" data-title="Biobrulaĵo" data-language-autonym="Esperanto" data-language-local-name="esperantó" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Biocarburante" title="Biocarburante – spænska" lang="es" hreflang="es" data-title="Biocarburante" data-language-autonym="Español" data-language-local-name="spænska" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Biok%C3%BCtus" title="Biokütus – eistneska" lang="et" hreflang="et" data-title="Biokütus" data-language-autonym="Eesti" data-language-local-name="eistneska" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Bioerregai" title="Bioerregai – baskneska" lang="eu" hreflang="eu" data-title="Bioerregai" data-language-autonym="Euskara" data-language-local-name="baskneska" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B2%DB%8C%D8%B3%D8%AA%E2%80%8C%D8%B3%D9%88%D8%AE%D8%AA" title="زیست‌سوخت – persneska" lang="fa" hreflang="fa" data-title="زیست‌سوخت" data-language-autonym="فارسی" data-language-local-name="persneska" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Biopolttoaine" title="Biopolttoaine – finnska" lang="fi" hreflang="fi" data-title="Biopolttoaine" data-language-autonym="Suomi" data-language-local-name="finnska" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Biocarburant" title="Biocarburant – franska" lang="fr" hreflang="fr" data-title="Biocarburant" data-language-autonym="Français" data-language-local-name="franska" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gd mw-list-item"><a href="https://gd.wikipedia.org/wiki/Bith-chonnadh" title="Bith-chonnadh – skosk gelíska" lang="gd" hreflang="gd" data-title="Bith-chonnadh" data-language-autonym="Gàidhlig" data-language-local-name="skosk gelíska" class="interlanguage-link-target"><span>Gàidhlig</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Biocombustible" title="Biocombustible – galisíska" lang="gl" hreflang="gl" data-title="Biocombustible" data-language-autonym="Galego" data-language-local-name="galisíska" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%93%D7%9C%D7%A7_%D7%91%D7%99%D7%95%D7%9C%D7%95%D7%92%D7%99" title="דלק ביולוגי – hebreska" lang="he" hreflang="he" data-title="דלק ביולוגי" data-language-autonym="עברית" data-language-local-name="hebreska" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%9C%E0%A5%88%E0%A4%B5_%E0%A4%88%E0%A4%82%E0%A4%A7%E0%A4%A8" title="जैव ईंधन – hindí" lang="hi" hreflang="hi" data-title="जैव ईंधन" data-language-autonym="हिन्दी" data-language-local-name="hindí" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Biogoriva" title="Biogoriva – króatíska" lang="hr" hreflang="hr" data-title="Biogoriva" data-language-autonym="Hrvatski" data-language-local-name="króatíska" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/En%C3%A8ji_byomas" title="Enèji byomas – haítíska" lang="ht" hreflang="ht" data-title="Enèji byomas" data-language-autonym="Kreyòl ayisyen" data-language-local-name="haítíska" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Bio%C3%BCzemanyag" title="Bioüzemanyag – ungverska" lang="hu" hreflang="hu" data-title="Bioüzemanyag" data-language-autonym="Magyar" data-language-local-name="ungverska" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Biocarburante" title="Biocarburante – interlingua" lang="ia" hreflang="ia" data-title="Biocarburante" data-language-autonym="Interlingua" data-language-local-name="interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Biofuel" title="Biofuel – indónesíska" lang="id" hreflang="id" data-title="Biofuel" data-language-autonym="Bahasa Indonesia" data-language-local-name="indónesíska" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ig mw-list-item"><a href="https://ig.wikipedia.org/wiki/Mman%E1%BB%A5_ala" title="Mmanụ ala – ígbó" lang="ig" hreflang="ig" data-title="Mmanụ ala" data-language-autonym="Igbo" data-language-local-name="ígbó" class="interlanguage-link-target"><span>Igbo</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Biocombustibile" title="Biocombustibile – ítalska" lang="it" hreflang="it" data-title="Biocombustibile" data-language-autonym="Italiano" data-language-local-name="ítalska" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%83%90%E3%82%A4%E3%82%AA%E7%87%83%E6%96%99" title="バイオ燃料 – japanska" lang="ja" hreflang="ja" data-title="バイオ燃料" data-language-autonym="日本語" data-language-local-name="japanska" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Bahan_bakar_hayati" title="Bahan bakar hayati – javanska" lang="jv" hreflang="jv" data-title="Bahan bakar hayati" data-language-autonym="Jawa" data-language-local-name="javanska" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%91%E1%83%98%E1%83%9D%E1%83%A1%E1%83%90%E1%83%AC%E1%83%95%E1%83%90%E1%83%95%E1%83%98" title="ბიოსაწვავი – georgíska" lang="ka" hreflang="ka" data-title="ბიოსაწვავი" data-language-autonym="ქართული" data-language-local-name="georgíska" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%91%D0%B8%D0%BE%D0%BE%D1%82%D1%8B%D0%BD" title="Биоотын – kasakska" lang="kk" hreflang="kk" data-title="Биоотын" data-language-autonym="Қазақша" data-language-local-name="kasakska" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%9C%E0%B3%88%E0%B2%B5%E0%B2%BF%E0%B2%95_%E0%B2%87%E0%B2%82%E0%B2%A7%E0%B2%A8" title="ಜೈವಿಕ ಇಂಧನ – kannada" lang="kn" hreflang="kn" data-title="ಜೈವಿಕ ಇಂಧನ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%B0%94%EC%9D%B4%EC%98%A4_%EC%97%B0%EB%A3%8C" title="바이오 연료 – kóreska" lang="ko" hreflang="ko" data-title="바이오 연료" data-language-autonym="한국어" data-language-local-name="kóreska" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Biodegalai" title="Biodegalai – litháíska" lang="lt" hreflang="lt" data-title="Biodegalai" data-language-autonym="Lietuvių" data-language-local-name="litháíska" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Biodegviela" title="Biodegviela – lettneska" lang="lv" hreflang="lv" data-title="Biodegviela" data-language-autonym="Latviešu" data-language-local-name="lettneska" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%91%D0%B8%D0%BE%D0%B3%D0%BE%D1%80%D0%B8%D0%B2%D0%BE" title="Биогориво – makedónska" lang="mk" hreflang="mk" data-title="Биогориво" data-language-autonym="Македонски" data-language-local-name="makedónska" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%9C%E0%B5%88%E0%B4%B5_%E0%B4%87%E0%B4%A8%E0%B5%8D%E0%B4%A7%E0%B4%A8%E0%B4%82" title="ജൈവ ഇന്ധനം – malajalam" lang="ml" hreflang="ml" data-title="ജൈവ ഇന്ധനം" data-language-autonym="മലയാളം" data-language-local-name="malajalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Bahan_api_bio" title="Bahan api bio – malaíska" lang="ms" hreflang="ms" data-title="Bahan api bio" data-language-autonym="Bahasa Melayu" data-language-local-name="malaíska" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%87%E1%80%AE%E1%80%9D%E1%80%9C%E1%80%B1%E1%80%AC%E1%80%84%E1%80%BA%E1%80%85%E1%80%AC" title="ဇီဝလောင်စာ – búrmneska" lang="my" hreflang="my" data-title="ဇီဝလောင်စာ" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="búrmneska" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Biobrandstof" title="Biobrandstof – hollenska" lang="nl" hreflang="nl" data-title="Biobrandstof" data-language-autonym="Nederlands" data-language-local-name="hollenska" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Biobrensel" title="Biobrensel – norskt bókmál" lang="nb" hreflang="nb" data-title="Biobrensel" data-language-autonym="Norsk bokmål" data-language-local-name="norskt bókmál" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Biocombustible" title="Biocombustible – oksítaníska" lang="oc" hreflang="oc" data-title="Biocombustible" data-language-autonym="Occitan" data-language-local-name="oksítaníska" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%AC%E0%A8%BE%E0%A8%87%E0%A8%93_%E0%A8%AC%E0%A8%BE%E0%A8%B2%E0%A8%A3" title="ਬਾਇਓ ਬਾਲਣ – púnjabí" lang="pa" hreflang="pa" data-title="ਬਾਇਓ ਬਾਲਣ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="púnjabí" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Biopaliwo" title="Biopaliwo – pólska" lang="pl" hreflang="pl" data-title="Biopaliwo" data-language-autonym="Polski" data-language-local-name="pólska" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D8%A8%D8%A7%D8%A6%DB%8C%D9%88_%D8%A8%D8%A7%D9%84%D9%86" title="بائیو بالن – Western Punjabi" lang="pnb" hreflang="pnb" data-title="بائیو بالن" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Biocombust%C3%ADvel" title="Biocombustível – portúgalska" lang="pt" hreflang="pt" data-title="Biocombustível" data-language-autonym="Português" data-language-local-name="portúgalska" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-qu mw-list-item"><a href="https://qu.wikipedia.org/wiki/Kawsasqamanta_rawrana" title="Kawsasqamanta rawrana – kvesjúa" lang="qu" hreflang="qu" data-title="Kawsasqamanta rawrana" data-language-autonym="Runa Simi" data-language-local-name="kvesjúa" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Biocombustibil" title="Biocombustibil – rúmenska" lang="ro" hreflang="ro" data-title="Biocombustibil" data-language-autonym="Română" data-language-local-name="rúmenska" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%91%D0%B8%D0%BE%D1%82%D0%BE%D0%BF%D0%BB%D0%B8%D0%B2%D0%BE" title="Биотопливо – rússneska" lang="ru" hreflang="ru" data-title="Биотопливо" data-language-autonym="Русский" data-language-local-name="rússneska" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Biogoriva" title="Biogoriva – serbókróatíska" lang="sh" hreflang="sh" data-title="Biogoriva" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbókróatíska" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%A2%E0%B7%93%E0%B7%80_%E0%B6%89%E0%B6%B1%E0%B7%8A%E0%B6%B0%E0%B6%B1" title="ජීව ඉන්ධන – singalíska" lang="si" hreflang="si" data-title="ජීව ඉන්ධන" data-language-autonym="සිංහල" data-language-local-name="singalíska" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Biofuel" title="Biofuel – Simple English" lang="en-simple" hreflang="en-simple" data-title="Biofuel" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Biopalivo" title="Biopalivo – slóvakíska" lang="sk" hreflang="sk" data-title="Biopalivo" data-language-autonym="Slovenčina" data-language-local-name="slóvakíska" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Biogorivo" title="Biogorivo – slóvenska" lang="sl" hreflang="sl" data-title="Biogorivo" data-language-autonym="Slovenščina" data-language-local-name="slóvenska" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Biokarburanti" title="Biokarburanti – albanska" lang="sq" hreflang="sq" data-title="Biokarburanti" data-language-autonym="Shqip" data-language-local-name="albanska" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%91%D0%B8%D0%BE%D0%B3%D0%BE%D1%80%D0%B8%D0%B2%D0%B0" title="Биогорива – serbneska" lang="sr" hreflang="sr" data-title="Биогорива" data-language-autonym="Српски / srpski" data-language-local-name="serbneska" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Biobr%C3%A4nsle" title="Biobränsle – sænska" lang="sv" hreflang="sv" data-title="Biobränsle" data-language-autonym="Svenska" data-language-local-name="sænska" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Biofueli" title="Biofueli – svahílí" lang="sw" hreflang="sw" data-title="Biofueli" data-language-autonym="Kiswahili" data-language-local-name="svahílí" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%89%E0%AE%AF%E0%AE%BF%E0%AE%B0%E0%AE%BF_%E0%AE%8E%E0%AE%B0%E0%AE%BF%E0%AE%AA%E0%AF%8A%E0%AE%B0%E0%AF%81%E0%AE%B3%E0%AF%8D" title="உயிரி எரிபொருள் – tamílska" lang="ta" hreflang="ta" data-title="உயிரி எரிபொருள்" data-language-autonym="தமிழ்" data-language-local-name="tamílska" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%9C%E0%B1%80%E0%B0%B5_%E0%B0%87%E0%B0%82%E0%B0%A7%E0%B0%A8%E0%B0%82" title="జీవ ఇంధనం – telúgú" lang="te" hreflang="te" data-title="జీవ ఇంధనం" data-language-autonym="తెలుగు" data-language-local-name="telúgú" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%80%E0%B8%8A%E0%B8%B7%E0%B9%89%E0%B8%AD%E0%B9%80%E0%B8%9E%E0%B8%A5%E0%B8%B4%E0%B8%87%E0%B8%8A%E0%B8%B5%E0%B8%A7%E0%B8%A0%E0%B8%B2%E0%B8%9E" title="เชื้อเพลิงชีวภาพ – taílenska" lang="th" hreflang="th" data-title="เชื้อเพลิงชีวภาพ" data-language-autonym="ไทย" data-language-local-name="taílenska" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Biyoyak%C4%B1t" title="Biyoyakıt – tyrkneska" lang="tr" hreflang="tr" data-title="Biyoyakıt" data-language-autonym="Türkçe" data-language-local-name="tyrkneska" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%91%D1%96%D0%BE%D0%BF%D0%B0%D0%BB%D0%B8%D0%B2%D0%BE" title="Біопаливо – úkraínska" lang="uk" hreflang="uk" data-title="Біопаливо" data-language-autonym="Українська" data-language-local-name="úkraínska" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Bioyoqilg%CA%BBi" title="Bioyoqilgʻi – úsbekska" lang="uz" hreflang="uz" data-title="Bioyoqilgʻi" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="úsbekska" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Nhi%C3%AAn_li%E1%BB%87u_sinh_h%E1%BB%8Dc" title="Nhiên liệu sinh học – víetnamska" lang="vi" hreflang="vi" data-title="Nhiên liệu sinh học" data-language-autonym="Tiếng Việt" data-language-local-name="víetnamska" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wa mw-list-item"><a href="https://wa.wikipedia.org/wiki/Biyocarburant" title="Biyocarburant – vallónska" lang="wa" hreflang="wa" data-title="Biyocarburant" data-language-autonym="Walon" data-language-local-name="vallónska" class="interlanguage-link-target"><span>Walon</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E7%94%9F%E7%89%A9%E7%87%83%E6%96%99" title="生物燃料 – wu-kínverska" lang="wuu" hreflang="wuu" data-title="生物燃料" data-language-autonym="吴语" data-language-local-name="wu-kínverska" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%94%9F%E8%B3%AA%E7%87%83%E6%96%99" title="生質燃料 – kínverska" lang="zh" hreflang="zh" data-title="生質燃料" data-language-autonym="中文" data-language-local-name="kínverska" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Seng-bu%CC%8Dt_ji%C3%A2n-li%C4%81u" title="Seng-bu̍t jiân-liāu – Minnan" lang="nan" hreflang="nan" data-title="Seng-bu̍t jiân-liāu" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="Minnan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E7%94%9F%E7%89%A9%E7%87%83%E6%96%99" title="生物燃料 – kantónska" lang="yue" hreflang="yue" data-title="生物燃料" data-language-autonym="粵語" data-language-local-name="kantónska" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q128991#sitelinks-wikipedia" title="Breyta tungumálatenglum" class="wbc-editpage">Breyta tenglum</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Nafnrými"> <div 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[h]" accesskey="h"><span>Breytingaskrá</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Síðuverkfæri"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Verkfæri" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Verkfæri</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header 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href="/wiki/Kerfiss%C3%AD%C3%B0a:S%C3%AD%C3%B0ur_sem_tengjast_hinga%C3%B0/L%C3%ADfeldsneyti" title="Listi yfir síður sem tengjast í þessa [j]" accesskey="j"><span>Hvað tengist hingað</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Kerfiss%C3%AD%C3%B0a:N%C3%BDlegar_breytingar_tengdar/L%C3%ADfeldsneyti" rel="nofollow" title="Nýlegar breytingar á ítengdum síðum [k]" accesskey="k"><span>Skyldar breytingar</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedia:Hlaða_inn_skrá" title="Hlaða inn skrám [u]" accesskey="u"><span>Hlaða inn skrá</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Kerfiss%C3%AD%C3%B0a:Kerfiss%C3%AD%C3%B0ur" title="Listi yfir kerfissíður [q]" accesskey="q"><span>Kerfissíður</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=L%C3%ADfeldsneyti&oldid=890185" title="Varanlegur tengill í þessa útgáfu síðunnar"><span>Varanlegur tengill</span></a></li><li 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class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Prenta/flytja út </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Kerfiss%C3%AD%C3%B0a:Book&bookcmd=book_creator&referer=L%C3%ADfeldsneyti"><span>Búa til bók</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=L%C3%ADfeldsneyti&printable=yes" title="Prentanleg útgáfa af þessari síðu [p]" accesskey="p"><span>Prentvæn útgáfa</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> Í öðrum verkefnum </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:Biofuels" hreflang="en"><span>Wikimedia Commons</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q128991" title="Tengill á tengdan hlut í gagnagrunni [g]" accesskey="g"><span>Wikidata hlutur</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Síðuverkfæri"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Útlit"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" 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frjálsa alfræðiritinu</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-revslider-container"><span style='width: 100%; text-align: center;' id='ooui-php-1' class='mw-revslider-toggle-button oo-ui-widget oo-ui-widget-enabled oo-ui-buttonElement oo-ui-buttonElement-frameless oo-ui-indicatorElement oo-ui-labelElement oo-ui-buttonWidget' data-ooui='{"_":"OO.ui.ButtonWidget","rel":["nofollow"],"framed":false,"indicator":"down","label":"Fletta \u00ed gegnum breytingarskr\u00e1","title":"Open revision slider","classes":["mw-revslider-toggle-button"]}'><a role='button' title='Open revision slider' tabindex='0' rel='nofollow' class='oo-ui-buttonElement-button'><span class='oo-ui-iconElement-icon oo-ui-iconElement-noIcon'></span><span class='oo-ui-labelElement-label'>Fletta í gegnum breytingarskrá</span><span class='oo-ui-indicatorElement-indicator oo-ui-indicator-down'></span></a></span><div class="mw-revslider-slider-wrapper" style="display: none;"><div class="mw-revslider-placeholder"><div class="mw-revslider-spinner"><div class="mw-revslider-bounce"></div></div></div></div></div><div class="mw-diff-revision-history-links"><a href="/w/index.php?title=L%C3%ADfeldsneyti&diff=prev&oldid=864985" class="mw-diff-revision-history-link-previous" title="Lífeldsneyti">← Eldri breyting</a><a href="/w/index.php?title=L%C3%ADfeldsneyti&diff=next&oldid=890185" class="mw-diff-revision-history-link-next" title="Lífeldsneyti">Nýrri breyting →</a></div><div class="mw-diff-table-prefix" dir="ltr" lang="is"><div class="mw-diff-inline-legend oo-ui-element-hidden"><span class="mw-diff-inline-legend-del">Efni eytt</span> <span class="mw-diff-inline-legend-ins">Efni bætt við</span></div><div class="ve-init-mw-diffPage-diffMode"><span class='oo-ui-widget oo-ui-widget-enabled oo-ui-buttonGroupWidget'><span aria-disabled='true' class='oo-ui-widget oo-ui-widget-disabled oo-ui-buttonElement 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class="mw-diffPage-inlineToggle-container"><div id='mw-diffPage-inline-toggle-switch-layout' class='oo-ui-layout oo-ui-labelElement oo-ui-fieldLayout oo-ui-fieldLayout-align-left' data-ooui='{"_":"OO.ui.FieldLayout","fieldWidget":{"tag":"mw-diffPage-inline-toggle-switch"},"$overlay":true,"label":"Innfellt","title":"Switches between inline format and two-column format"}'><div class='oo-ui-fieldLayout-body'><span class='oo-ui-fieldLayout-header'><label title='Switches between inline format and two-column format' id='ooui-php-2' class='oo-ui-labelElement-label'>Innfellt</label></span><div class='oo-ui-fieldLayout-field'><div id='mw-diffPage-inline-toggle-switch' title='Switches between inline format and two-column format' aria-checked='false' tabindex='0' role='switch' aria-labelledby='ooui-php-2' class='oo-ui-widget oo-ui-widget-enabled oo-ui-toggleWidget oo-ui-toggleWidget-off oo-ui-toggleSwitchWidget' data-ooui='{"_":"OO.ui.ToggleSwitchWidget","href":"\/w\/index.php?title=L%C3%ADfeldsneyti&diff=prev&oldid=890185&diff-type=inline","value":false,"title":"Switches between inline format and two-column format"}'><span class='oo-ui-toggleSwitchWidget-glow'></span><a href='/w/index.php?title=L%C3%ADfeldsneyti&diff=prev&oldid=890185&diff-type=inline'><span class='oo-ui-toggleSwitchWidget-grip'></span></a></div></div></div></div></div></div><table class="diff diff-type-table diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="is"> <td colspan="2" class="diff-otitle diff-side-deleted"><div id="mw-diff-otitle1"><strong><a href="/w/index.php?title=L%C3%ADfeldsneyti&oldid=864985" title="Lífeldsneyti">Útgáfa síðunnar 22. apríl 2010 kl. 15:48</a> <span class="mw-diff-edit"><a href="/w/index.php?title=L%C3%ADfeldsneyti&action=edit&oldid=864985" title="Lífeldsneyti">breyta</a></span><span class="mw-diff-timestamp" data-timestamp="2010-04-22T15:48:47Z"></span></strong></div><div id="mw-diff-otitle2"><a href="/wiki/Notandi:Max%C3%AD" class="mw-userlink" title="Notandi:Maxí" data-mw-revid="864985"><bdi>Maxí</bdi></a> <span class="mw-usertoollinks">(<a href="/wiki/Notandaspjall:Max%C3%AD" class="mw-usertoollinks-talk" title="Notandaspjall:Maxí">spjall</a> | <a href="/wiki/Kerfiss%C3%AD%C3%B0a:Framl%C3%B6g/Max%C3%AD" class="mw-usertoollinks-contribs" title="Kerfissíða:Framlög/Maxí">framlög</a>)</span><div class="mw-diff-usermetadata"><div class="mw-diff-userroles"><a href="/wiki/Wikipedia:M%C3%B6ppud%C3%BDr" title="Wikipedia:Möppudýr">Möppudýr</a>, <a href="/wiki/Wikipedia:Stj%C3%B3rnendur" class="mw-redirect" title="Wikipedia:Stjórnendur">Stjórnendur</a></div><div class="mw-diff-usereditcount"><strong>18.225</strong> breytingar</div></div></div><div id="mw-diff-otitle3"><abbr class="minoredit" title="Þetta er minniháttar breyting">m</abbr><span class="comment mw-comment-none">Ekkert breytingarágrip</span></div><div id="mw-diff-otitle5"></div><div id="mw-diff-otitle4"><a href="/w/index.php?title=L%C3%ADfeldsneyti&diff=prev&oldid=864985" title="Lífeldsneyti" id="differences-prevlink">← Eldri breyting</a></div></td> <td colspan="2" class="diff-ntitle diff-side-added"><div id="mw-diff-ntitle1"><strong><a href="/w/index.php?title=L%C3%ADfeldsneyti&oldid=890185" title="Lífeldsneyti">Útgáfa síðunnar 12. júní 2010 kl. 06:27</a> <span class="mw-diff-edit"><a href="/w/index.php?title=L%C3%ADfeldsneyti&action=edit&oldid=890185" title="Lífeldsneyti">breyta</a></span><span class="mw-diff-timestamp" data-timestamp="2010-06-12T06:27:12Z"></span> <span class="mw-diff-undo"><a href="/w/index.php?title=L%C3%ADfeldsneyti&action=edit&undoafter=864985&undo=890185" title="„Afturkalla þessa breytingu“ breytir aftur til síðustu breytingu og opnar breytinguna í forskoðun. Hægt er að bæta við ástæðu í breytingarávarpinu.">taka aftur þessa breytingu</a></span></strong></div><div id="mw-diff-ntitle2"><a href="/wiki/Notandi:VolkovBot" class="mw-userlink" title="Notandi:VolkovBot" data-mw-revid="890185"><bdi>VolkovBot</bdi></a> <span class="mw-usertoollinks">(<a href="/wiki/Notandaspjall:VolkovBot" class="mw-usertoollinks-talk" title="Notandaspjall:VolkovBot">spjall</a> | <a href="/wiki/Kerfiss%C3%AD%C3%B0a:Framl%C3%B6g/VolkovBot" class="mw-usertoollinks-contribs" title="Kerfissíða:Framlög/VolkovBot">framlög</a>)</span><div class="mw-diff-usermetadata"><div class="mw-diff-userroles"></div><div class="mw-diff-usereditcount"><strong>65.693</strong> breytingar</div></div></div><div id="mw-diff-ntitle3"><abbr class="minoredit" title="Þetta er minniháttar breyting">m</abbr> <span class="comment comment--without-parentheses">robot Bæti við: <a href="https://ht.wikipedia.org/wiki/En%C3%A8ji_byomas" class="extiw" title="ht:Enèji byomas">ht:Enèji byomas</a></span></div><div id="mw-diff-ntitle5"></div><div id="mw-diff-ntitle4"><a href="/w/index.php?title=L%C3%ADfeldsneyti&diff=next&oldid=890185" title="Lífeldsneyti" id="differences-nextlink">Nýrri breyting →</a></div></td> </tr><tr> <td colspan="2" class="diff-lineno">Lína 120:</td> <td colspan="2" class="diff-lineno">Lína 120:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[ar:طاقة حيوية]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[ar:طاقة حيوية]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker"><a class="mw-diff-movedpara-right" title="Málsgrein var færð. Smelltu til að hoppa á gömlu staðsetninguna." href="#movedpara_33_0_lhs">⚫</a></td> <td class="diff-addedline diff-side-added"><div><a name="movedpara_1_0_rhs"></a>[[bat-smg:Biuodegalā]]</div></td> </tr> <tr> <td class="diff-marker"><a class="mw-diff-movedpara-left" title="Málsgrein var færð. Smelltu til að hoppa á nýju staðsetninguna." href="#movedpara_5_0_rhs">⚫</a></td> <td class="diff-deletedline diff-side-deleted"><div><a name="movedpara_2_0_lhs"></a>[[bn:জৈবজ্বালানী]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"><a class="mw-diff-movedpara-left" title="Málsgrein var færð. Smelltu til að hoppa á nýju staðsetninguna." href="#movedpara_35_0_rhs">⚫</a></td> <td class="diff-deletedline diff-side-deleted"><div><a name="movedpara_3_0_lhs"></a>[[zh-min-nan:Seng-bu̍t jiân-liāu]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[be:Біяпаліва]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[be:Біяпаліва]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[bg:Биогориво]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[bg:Биогориво]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker"><a class="mw-diff-movedpara-right" title="Málsgrein var færð. Smelltu til að hoppa á gömlu staðsetninguna." href="#movedpara_2_0_lhs">⚫</a></td> <td class="diff-addedline diff-side-added"><div><a name="movedpara_5_0_rhs"></a>[[bn:জৈবজ্বালানী]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[ca:Biocombustible]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[ca:Biocombustible]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[cs:Biopalivo]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[cs:Biopalivo]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[da:Biobrændsel og biobrændstof]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[da:Biobrændsel og biobrændstof]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[de:Biokraftstoff]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[de:Biokraftstoff]]</div></td> </tr> <tr> <td class="diff-marker"><a class="mw-diff-movedpara-left" title="Málsgrein var færð. Smelltu til að hoppa á nýju staðsetninguna." href="#movedpara_21_0_rhs">⚫</a></td> <td class="diff-deletedline diff-side-deleted"><div><a name="movedpara_7_0_lhs"></a>[[<del class="diffchange diffchange-inline">en</del>:Biofuel]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"><a class="mw-diff-movedpara-left" title="Málsgrein var færð. Smelltu til að hoppa á nýju staðsetninguna." href="#movedpara_11_1_rhs">⚫</a></td> <td class="diff-deletedline diff-side-deleted"><div><a name="movedpara_7_1_lhs"></a>[[et:Biokütus]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[el:Βιοκαύσιμα]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[el:Βιοκαύσιμα]]</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[<del class="diffchange diffchange-inline">es</del>:<del class="diffchange diffchange-inline">Biocarburante</del>]]</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[<ins class="diffchange diffchange-inline">en</ins>:<ins class="diffchange diffchange-inline">Biofuel</ins>]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[eo:Biobrulaĵo]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[eo:Biobrulaĵo]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[es:Biocarburante]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker"><a class="mw-diff-movedpara-right" title="Málsgrein var færð. Smelltu til að hoppa á gömlu staðsetninguna." href="#movedpara_7_1_lhs">⚫</a></td> <td class="diff-addedline diff-side-added"><div><a name="movedpara_11_1_rhs"></a>[[et:Biokütus]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[eu:Bioerregai]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[eu:Bioerregai]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker"><a class="mw-diff-movedpara-right" title="Málsgrein var færð. Smelltu til að hoppa á gömlu staðsetninguna." href="#movedpara_31_0_lhs">⚫</a></td> <td class="diff-addedline diff-side-added"><div><a name="movedpara_13_0_rhs"></a>[[fi:Biopolttoaine]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[fr:Biocarburant]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[fr:Biocarburant]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[gl:Biocombustible]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[gl:Biocombustible]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker"><a class="mw-diff-movedpara-right" title="Málsgrein var færð. Smelltu til að hoppa á gömlu staðsetninguna." href="#movedpara_24_0_lhs">⚫</a></td> <td class="diff-addedline diff-side-added"><div><a name="movedpara_15_0_rhs"></a>[[he:דלק ביולוגי]]</div></td> </tr> <tr> <td class="diff-marker"><a class="mw-diff-movedpara-left" title="Málsgrein var færð. Smelltu til að hoppa á nýju staðsetninguna." href="#movedpara_25_0_rhs">⚫</a></td> <td class="diff-deletedline diff-side-deleted"><div><a name="movedpara_16_0_lhs"></a>[[ko:바이오 연료]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[hr:Biogoriva]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[hr:Biogoriva]]</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[<del class="diffchange diffchange-inline">id</del>:<del class="diffchange diffchange-inline">Biofuel</del>]]</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[<ins class="diffchange diffchange-inline">ht</ins>:<ins class="diffchange diffchange-inline">Enèji byomas</ins>]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker"><a class="mw-diff-movedpara-right" title="Málsgrein var færð. Smelltu til að hoppa á gömlu staðsetninguna." href="#movedpara_27_0_lhs">⚫</a></td> <td class="diff-addedline diff-side-added"><div><a name="movedpara_19_0_rhs"></a>[[hu:Bioüzemanyag]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[ia:Biocarburante]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[ia:Biocarburante]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker"><a class="mw-diff-movedpara-right" title="Málsgrein var færð. Smelltu til að hoppa á gömlu staðsetninguna." href="#movedpara_7_0_lhs">⚫</a></td> <td class="diff-addedline diff-side-added"><div><a name="movedpara_21_0_rhs"></a>[[<ins class="diffchange diffchange-inline">id</ins>:Biofuel]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[it:Biocombustibile]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[it:Biocombustibile]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker"><a class="mw-diff-movedpara-right" title="Málsgrein var færð. Smelltu til að hoppa á gömlu staðsetninguna." href="#movedpara_29_0_lhs">⚫</a></td> <td class="diff-addedline diff-side-added"><div><a name="movedpara_23_0_rhs"></a>[[ja:バイオ燃料]]</div></td> </tr> <tr> <td class="diff-marker"><a class="mw-diff-movedpara-left" title="Málsgrein var færð. Smelltu til að hoppa á nýju staðsetninguna." href="#movedpara_15_0_rhs">⚫</a></td> <td class="diff-deletedline diff-side-deleted"><div><a name="movedpara_24_0_lhs"></a>[[he:דלק ביולוגי]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker"><a class="mw-diff-movedpara-right" title="Málsgrein var færð. Smelltu til að hoppa á gömlu staðsetninguna." href="#movedpara_16_0_lhs">⚫</a></td> <td class="diff-addedline diff-side-added"><div><a name="movedpara_25_0_rhs"></a>[[ko:바이오 연료]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[lt:Biodegalai]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[lt:Biodegalai]]</div></td> </tr> <tr> <td class="diff-marker"><a class="mw-diff-movedpara-left" title="Málsgrein var færð. Smelltu til að hoppa á nýju staðsetninguna." href="#movedpara_19_0_rhs">⚫</a></td> <td class="diff-deletedline diff-side-deleted"><div><a name="movedpara_27_0_lhs"></a>[[hu:Bioüzemanyag]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[nl:Biobrandstof]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[nl:Biobrandstof]]</div></td> </tr> <tr> <td class="diff-marker"><a class="mw-diff-movedpara-left" title="Málsgrein var færð. Smelltu til að hoppa á nýju staðsetninguna." href="#movedpara_23_0_rhs">⚫</a></td> <td class="diff-deletedline diff-side-deleted"><div><a name="movedpara_29_0_lhs"></a>[[ja:バイオ燃料]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[no:Biobrensel]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[no:Biobrensel]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[oc:Biocombustible]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[oc:Biocombustible]]</div></td> </tr> <tr> <td colspan="2" class="diff-lineno">Lína 156:</td> <td colspan="2" class="diff-lineno">Lína 158:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[sl:Biogorivo]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[sl:Biogorivo]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[sr:Биогорива]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[sr:Биогорива]]</div></td> </tr> <tr> <td class="diff-marker"><a class="mw-diff-movedpara-left" title="Málsgrein var færð. Smelltu til að hoppa á nýju staðsetninguna." href="#movedpara_13_0_rhs">⚫</a></td> <td class="diff-deletedline diff-side-deleted"><div><a name="movedpara_31_0_lhs"></a>[[fi:Biopolttoaine]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[sv:Biobränsle]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[sv:Biobränsle]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[ta:உயிரி எரிபொருள்]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[ta:உயிரி எரிபொருள்]]</div></td> </tr> <tr> <td colspan="2" class="diff-lineno">Lína 164:</td> <td colspan="2" class="diff-lineno">Lína 165:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[vi:Nhiên liệu sinh học]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[vi:Nhiên liệu sinh học]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[wa:Biyocarburant]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[wa:Biyocarburant]]</div></td> </tr> <tr> <td class="diff-marker"><a class="mw-diff-movedpara-left" title="Málsgrein var færð. Smelltu til að hoppa á nýju staðsetninguna." href="#movedpara_1_0_rhs">⚫</a></td> <td class="diff-deletedline diff-side-deleted"><div><a name="movedpara_33_0_lhs"></a>[[bat-smg:Biuodegalā]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[zh:生質燃料]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[zh:生質燃料]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker"><a class="mw-diff-movedpara-right" title="Málsgrein var færð. Smelltu til að hoppa á gömlu staðsetninguna." href="#movedpara_3_0_lhs">⚫</a></td> <td class="diff-addedline diff-side-added"><div><a name="movedpara_35_0_rhs"></a>[[zh-min-nan:Seng-bu̍t jiân-liāu]]</div></td> </tr> </table><hr class='diff-hr' id='mw-oldid' /> <h2 class='diff-currentversion-title'>Útgáfa síðunnar 12. júní 2010 kl. 06:27</h2> <div class="mw-content-ltr mw-parser-output" lang="is" dir="ltr"><p><b>Lífeldsneyti</b> er <a href="/wiki/Hugtak" title="Hugtak">hugtak</a> sem notað er fyrir lífrænt <a href="/wiki/Eldsneyti" title="Eldsneyti">eldsneyti</a> sem unnin eru úr <a href="/wiki/Endurn%C3%BDjanleg_orka" title="Endurnýjanleg orka">endurnýjanlegum orkulindum</a>. Lífeldsneyti er viðfeðmur flokkur sem skiptast niður í þrjá flokka eftir því hvernig þær eru unnar, þ.e. eldsneyti sem unnin er úr lífmassa, úr vökva og svo nátturuleg gös. </p><p>Eldsneyti sem unnar eru úr endurnýjanlegum orkuauðlindum hefur á undanfarin árum aukið athygli vísindamanna og almenningi og þá einkum í tengslum við sem framtíðar orkubera, sem væri umhverfisvænna en það jarðefnaeldsneyti sem við notum í dag. Til lengri tíma litið munu olíuauðlindir fara þverrandi og leiða til hækkandi eldsneytisverð. Samhliða því er hugsanlegt að eldsneytisverð fari einnig hækkandi vegna aukinnar skattheimtu og eftirspurn fyrir nýjum orkugjöfum fari vaxandi í náinni framtíð. Erfitt er að seigja til um hversu hröð þróunin verði en ljóst er að hefbundnir bensínbílar verða með breyttu sniði í náinni framtíð. Bensín með íblöndun á lífrænu eldsneyti eykst með árunum, bæði í <a href="/wiki/Almenningssamg%C3%B6ngur" title="Almenningssamgöngur">almenningssamgöngum</a> og í iðnaðarsamgöngum. Stóru bílaframleiðendurnir hafa verið að færa sig inn á þennan markað á undanförnum árum. Þó hæg þróun á <a href="/wiki/%C3%8Dsland" title="Ísland">Íslandi</a> hvað þetta varðar á það einkum við um bíla til einkanota, en þróunin undanfarin ár hefur verið örari varðandi þá bíla sem notaðir eru í atvinnustarfsemi af ýmsu tagi. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Tegundir">Tegundir</h2></div> <div class="mw-heading mw-heading3"><h3 id="Etanól"><span id="Etan.C3.B3l"></span>Etanól</h3></div> <style data-mw-deduplicate="TemplateStyles:r1744436">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}</style><div role="note" class="hatnote navigation-not-searchable">Aðalgrein: <a href="/wiki/Etan%C3%B3l" title="Etanól">Etanól</a></div> <figure typeof="mw:File/Thumb"><a href="/wiki/Mynd:Sao_Paulo_ethanol_pump_04_2008_74_zoom.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/cb/Sao_Paulo_ethanol_pump_04_2008_74_zoom.jpg/250px-Sao_Paulo_ethanol_pump_04_2008_74_zoom.jpg" decoding="async" width="250" height="167" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/cb/Sao_Paulo_ethanol_pump_04_2008_74_zoom.jpg/375px-Sao_Paulo_ethanol_pump_04_2008_74_zoom.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/cb/Sao_Paulo_ethanol_pump_04_2008_74_zoom.jpg/500px-Sao_Paulo_ethanol_pump_04_2008_74_zoom.jpg 2x" data-file-width="900" data-file-height="600" /></a><figcaption>Etanólsdæla á bensínstöð í <a href="/wiki/Brasil%C3%ADa" title="Brasilía">Brasilíu</a>.</figcaption></figure> <p>Etanól er lífrænt <a href="/wiki/Efnasamband" title="Efnasamband">efnasamband</a> táknað sem C<sub>2</sub>H<sub>5</sub>OH. Það er eldfimt, litarlaust og eitrað efni. Bruni þess myndar bláan loga sem oft er ekki sjáanlegt í mikillri birtu. Etanól er framleitt úr jurtum eins og <a href="/wiki/Ma%C3%ADs" title="Maís">maís</a> og <a href="/w/index.php?title=Sykureyrr&action=edit&redlink=1" class="new" title="Sykureyrr (síða er ekki enn til)">sykureyrr</a> en einnig hægt að framleiða etanól úr öðrum jurtum eins og <a href="/wiki/L%C3%BAp%C3%ADna" class="mw-redirect" title="Lúpína">lúpínum</a> eða <a href="/wiki/Gras" class="mw-redirect" title="Gras">grasi</a> sem væri unnt að framleiða hér á landi.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Etanól myndast á nátturulegan hátt úr kolvetnum (sykrum) í loftfirrðum aðstæðum með hjálp gerla sem brjóta niður lífræn efni, það er að segja sellulósa og hemisellulósa. Þetta er það ferli sem kallað er gerjun. En með gerjun og eyming á lífrænum efnum er hægt að framleiða etanól til ýmissa nota.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Hér á Íslandi er verið að skoða möguleika á því að nota háhitakærar bakteríur til framleiðslu á etanóli. Hafa verið gerðar einfaldar gerjunartilraunir úr einföldum sykrum, en einnig á einföldum lífmassa svo sem gras, hálmi og pappir. <sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>Etanól hefur um 85% af brunagildi bensíns en með því að blanda því út í 15% bensín <sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>bætir það verulega bruna þess. Etanól sem eldnseyti er umhverfisvænt eldsneyti, en það er framleitt úr lífrænum efnum og er tekið koldíoxið úr andrúmloftinu við myndun þeirra. Við bruna etanóls myndast vatn og svo koldíoxið aftur </p><p>Í lok árs <a href="/wiki/2006" title="2006">2006</a> fóru <a href="/w/index.php?title=Brimborg&action=edit&redlink=1" class="new" title="Brimborg (síða er ekki enn til)">Brimborg</a> að kanna möguleika á bíla sem gætu notað etanól sem orkugjafa. Brimborg hófu samstarf með <a href="/wiki/Ol%C3%ADs" title="Olís">Olís</a> um að flytja etanól til landsins og ári seinna kom fyrsta etanól (E85) dælustöðin til Íslands, sem staðsett er í <a href="/w/index.php?title=%C3%81lfheimar&action=edit&redlink=1" class="new" title="Álfheimar (síða er ekki enn til)">Álfheimum</a> í <a href="/wiki/Reykjav%C3%ADk" title="Reykjavík">Reykjavík</a>.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p>Undanfarin ár hefur framleiðsla á etanóli farið ört vaxandi og síaukinn eftirspurn af etanóli sem orkubera farið vaxandi í heiminum. Þróunin hefur fyrst og fremst átt sér stað í <a href="/wiki/Bandar%C3%ADkin" title="Bandaríkin">Bandaríkjunum</a>, hefur framleiðsla etanóls þar verið samkeppnishæfur á við bensín sem eldsneyti fyrir bifreiðar. Sem dæmi þá hefur <a href="/wiki/Brasil%C3%ADa" title="Brasilía">Brasilía</a> notað etanól sem eldsneyti um langa skeið í stað bensíns. Þar eru nær allir bílar fjölorkubílar sem ganga fyrir hvaða blöndu af etanóls og bensíns sem er. Í Bandaríkjunum og ríkjum <a href="/w/index.php?title=Efnahagsbandalagi%C3%B0&action=edit&redlink=1" class="new" title="Efnahagsbandalagið (síða er ekki enn til)">Efnahagsbandalaginu</a> hafa verið gerðar kröfur um íblöndun etanóls í bensín <sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>en við þetta gæti myndast góð markaðskylirði fyrir framleiðslu á etanóli. Ef horft er til íslenskra aðstæðna við etanólframleiðslu er það einkum ódýr jarðgufa sem gæti verið fýsilegur kostur er kemur að framleiðslu. </p><p>Framleiðsla á etanóli úr jurtum eins og maís, sykureyrr og öðrum matvælum mætt mikillra hörku víða um heim. Til að mynda er meira en fjórðungur alls <a href="/wiki/Korn" title="Korn">korns</a> sem ræktað er í Bandaríkjunum er nú notað til að framleiða lífrænt eldsneyti. Með þessu telja þeir að etanól framleitt úr korni megi nota í stórum stíl í stað bensíns á bíla og þannig verði þeir ekki eins háð olíu frá óstöðugum ríkjum. Aukin framleiðsla á lífeldsneytis á borð við etanól hefur óhjákvæmilega áhrif annarstaðar í heiminum hvað varðar matvælaskort. Verða þróunarríkin þar verst úti. </p> <div class="mw-heading mw-heading3"><h3 id="Metan">Metan</h3></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1744436"><div role="note" class="hatnote navigation-not-searchable">Aðalgrein: <a href="/wiki/Metan" title="Metan">Metan</a></div> <figure typeof="mw:Error mw:File/Thumb"><a href="/wiki/Wikipedia:Hlaða_inn_skrá?wpDestFile=Hreinsi.jpg" class="new" title="Mynd:Hreinsi.jpg"><span class="mw-file-element mw-broken-media" data-width="300">Mynd:Hreinsi.jpg</span></a><figcaption>Hreinsistöð í Álfsnesi, en þar er gasið hreinsað í svokölluðum þvegli</figcaption></figure> <p>Metan er efnasamband kolefnis og vetnis: efnaformúluna metans er CH<sub>4</sub>. Metan er litlaust og lyktarlaus gastegund sem er skaðlaus við innöndun. Metangas myndast út í nátturunni við rotnun lífræns úrgangs við loftfirrðar aðstæður. Í nátturunni eru mýrar, votlendi, gömul skóglendi og urðunarsvæði ákjósanlegustu aðstæður í myndun metangas. </p><p>Metan er skæð gróðurhúsaloftegund og hefur til að mynda 21 sinnum meiri gróðurhúsaáhrif en koldíoxið, ef því er sleppt út í andrúmsloftið. Bruni metans myndast koldíoxið og vatn samkvæmt efnajöfnu: <sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <dl><dd>CH<sub>4</sub> + 2O<sub>2</sub> → CO<sub>2</sub> + 2H<sub>2</sub>O</dd></dl> <p>Þegar þessi bruni á sér stað myndast mikill hiti sem gerir það að verkum að hægt er að nota það sem eldsneyti. Orkan sem myndast út frá bruna gassins er oftast notuð til hitunar og rafmagnsframleiðslu en einnig er hægt að nota metan sem orkubera (eldsneyti). </p><p>Metan sem eldsneyti hefur verið notuð til að knýja bíla á Íslandi frá árinu 2000. Metangasframleiðsla hér á landi hefur verið safnað saman á urðunarstað höfuðborgarsvæðisins í Álfsnesi. Þar er metangasið unnið úr hauggasi sem myndast við rotnun á lífrænu úrgangi. Í dag er framleitt um 2200 t á ári af metani, en sú framleiðsla myndi nægja um 4500 littlum ökutækjum. <sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> Hauggasið sem myndast á urðunarstaðnum hefur að geyma um 55% af metani, koldíoxiðs um 42% og aðrar lofttegundir eru um 3%. <sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup>Hauggasið er safnað saman í safnkistur en þær eru tengdar safnrörum sem staðsettar eru við landfyllinguna og sjá um að vinna gasið úr jörðinni. Gasinu er flutt yfir í hreinsistöð þar sem það er hreinsað í svokölluðum þvegli. Aðferðin felst í því að metanið er skilið frá öðrum lofttegundum með vatni. Metanið er síðan þurrkað og þjappað á flöskur í áfyllingargám til flutnings á áfyllingarstöð. Þá er hreinleiki metansins orðinn 95-98%. </p><p>Tvö bifreiðaumboð á Íslandi hafa verið að bjóðar upp á bíla sem nota metan sem eldsneyti, þau eru Hekla og Askja. Hekla hefur verið að selja fjórar tegundir metanfólksbíla og Askja hefur verið að bjóða upp á tvær tegundir. Mikil framför hefur orðið í þróun og tækni metanbifreiða á síðustu árum og er nú talað um þriðju kynslóð metanbifreiða. <sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup>Flestir stærri bílaframleiðendur framleiða og markaðssetja núorðið metanbifreiðar og hefur þeim fjölgað mikið enda hefur eftirspurnin aukist. Yfir 100 bílar hér á landi hafa verið í notkun, þá annarsvegar hreinir metanbílar og hinsvegar tvíorkubílar. Einnig hefur verið algengt að bensín bifreiðum sé breytt í metanbifreiðar. Metan-bifreiðar eru þeim kostum gæfnir að þau gefa frá sér minni hávaða og mengunin er talsverð minni en á hefbundnum bensínbílum. </p><p>Við brennslu metangass í bílvél myndast koldíoxíð en við það er verið að flytja koldíoxíð sem hvort eð er myndaðist á urðunarstaðnum út í andrúmsloftið. Þegar á heildina er litið verður eingin aukning á koldíoxíð í andrúmsloftinu og enn fremur sparast koldíoxíð sem hefði myndast í venjulegri bifreið en sparnaðurinn er um 260g á km. Útblástursefni frá metanbifreiðum er í töluverðum minna magni en bansín eða dísel, eða um það bil 20% minn en í venjulegum bílum.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> Framleiðsla á metangasi er góður kostur þegar er verið að skoða möguleika á innlenda orku. Hér á landi hefur nokkur fyrirtæki notað metangas sem orkugjafa. Samstarf Metan hf og Orkuveitu Reykjavíkur um metangasknúið orkuver sem mun vera með 840 kW af uppsettu afli og framleiðsla áætluð um 4,3 GWh/ár.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Lífdísill"><span id="L.C3.ADfd.C3.ADsill"></span>Lífdísill</h3></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1744436"><div role="note" class="hatnote navigation-not-searchable">Aðalgrein: <a href="/wiki/L%C3%ADfd%C3%ADsill" title="Lífdísill">Lífdísill</a></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Mynd:Diesel_prices.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Diesel_prices.jpg/220px-Diesel_prices.jpg" decoding="async" width="220" height="345" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Diesel_prices.jpg/330px-Diesel_prices.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Diesel_prices.jpg/440px-Diesel_prices.jpg 2x" data-file-width="925" data-file-height="1452" /></a><figcaption>Lífdísilsdæla í <a href="/wiki/Mannheim" title="Mannheim">Mannheim</a>. Í nokkrum löndum er lífdísill ódýrara en almennilegur dísill.</figcaption></figure> <p>Lífdísill er algengasta lífeldnseyti í Evrópu.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> Það er framleitt úr grænmetisolíu, dýrafitu og fiskiúrgangi með umesterun, og er vökvi þess ekki ólíkur jarðefnaeldsneyti. Efnafræðileg heiti yfir lífdísilolíu er fitusýru- metýl (eða etýl). Olíu er blandað saman við hydroxíð natríum og metanóli (eða etanóli), við þessa samsetningu verður til efnahvarf sem myndar lífdísilolíu og glýseról. Einn hluti glýseról er framleitt fyrir hvern tíu hluta dísilolíunnar. </p><p>Lífdísill er oftast framleiddur úr sojabaunaolíu eða repjuolíu. Á Íslandi væri hægt að nota fiskiúrgang, fitu sem til fellur úr sláturhúsum og afgangs steikingarolíu í stað sjoabauna og repju.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p><p>Lífdísill er hægt að nota á í flestum gerðum dísilvéla. Lífdísilolía hefur örlítið minna orkuinnihald en dísilolía sem unnin er úr jarðefnaeldsneyti. Einnig eru efni eins og brennisteinn og arómatísk efnasambönd í minna mæli. Þó svo hún hafi minni orkuinnihald er hún umhverfisvænni þar sem hún gefur ekki frá sér óæskilegar loftegundir út í andrúmsloftið. Lífdísilolían er einnig hentug því hægt er að nota hana á dísilvélar án þess að breyta þurfi vélunum á nokkurn hátt. </p><p>Rétt eins og etanólframleiðsla, hefur framleiðsla á lífdísilolíu fylgt mikillri umræðu og þá einkum í tengslum við hækkandi matvælaverð. Sojabaunaolía er mikilvæg í fæðuframleiðslu og verður því enn um sinn dýr til framleiðslu dísilolíu, þar sem hún er mjög eftirsótt í matvælamarkaði. Einnig þarf að hafa í huga að mikil notkun grænmetisolíu til dísilframleiðslu getur haft áhrif á fæðuframleiðslu og orsakað matarskorti í þróunarlöndum. Á Íslandi væri helst leitað til þá fitu og úrgangi sem til fellur úr landbúnaði og fiskiðnaði, þar sem skilirðin til ræktunar á repju og sojabaunir er ekki góður. </p><p>Á Íslandi hefur hafist tilraunaverkefni á framleiðslu lífdísilolíu, sem unnin er úr vetrarrepju. Þetta verkefni er á vegum rannsóknar og þróunarsviðs Siglingarstofnunar en þau vinna það í samstarfi við Landbúnaðarháskóla Íslands og bændur víða um lands. Þar er lífdísilolían unnin úr vetrarrepju sem er enn um sinn aukabúgrein hjá íslenskum bændum. <sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Metanól"><span id="Metan.C3.B3l"></span>Metanól</h3></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1744436"><div role="note" class="hatnote navigation-not-searchable">Aðalgrein: <a href="/wiki/Metan%C3%B3l" title="Metanól">Metanól</a></div> <p>Metanól einnig þekkt sem tréspíri eða viðarspíri, er einfalt alkóhól sem er eldfimur og eitraður vökvi og gefur frá sér samskonar lykt og etanól. Metanól er efnasamband með efnaformúlana CH<sub>3</sub>OH en við stofuhita er efnið í vökvaformi. Metanól er notaður sem frostvari og leysir en einnig er hægt að nota það sem eldsneyti. </p><p>Í nátturunni myndast metanól í loftfirrðum aðstæðum með hjálp baktería og er því nátturulegt í umhverfinu. Þegar metanól kemst í snertingu við súrefni með hjálp sólarljóssins myndast koldíoxið og vatn. Efnaformúla:<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> </p> <dl><dd>2 CH<sub>3</sub>OH + 3 O<sub>2</sub> → 2 CO<sub>2</sub> + 4 H<sub>2</sub>O</dd></dl> <p>Á Íslandi hafa verið hugmyndir uppi að framleiða metanól úr vetni og koltvísíringi úr álverum ef ofnum yrði lokað en óvíst er að það sé framkvæmanlegt. ht<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> Metanól má framleiða úr kolsýru með því að láta það hvarfast við vetni við 200-300°C og 50-100bar þrýstingi samkvæmt eftirfarandi efnajöfnu. <sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> </p> <dl><dd>3H<sub>2</sub> + CO<sub>2</sub> = CH<sub>3</sub>OH + H<sub>2</sub>O</dd></dl> <p>Framleiðsla metanóls úr koldíoxíð hefur nú verið settar á laggirnar með tilkomu nýrrar metanólsverksmiðju við Svartsengi og ef allt gengur eftir tekur verksmiðjan til starfa í lok 2010. Þar verður koltvísýringsútblástur frá jarðvarmavirkjunum breytt í metanól, fljótandi eldsneyti sem síðar verður notað sem íblöndun út í bensín fyrir farartæki. Svartsengi framleiðir um 80.000 tonn á ári af kolsýru en með þeirri losun myndi afkastageta verksmiðjunnar verða um 56.000 tonn af metanóli á ári. Með íblöndun metanóls í bensíni (5 á móti 95) hækkar oktanagildi eldsneytisins og þar af leiðandi myndast hreinni brennsla og betri nýting. Enn fremur eykur blandan afl bensínbíla. <sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Syngas">Syngas</h3></div> <p><a href="/w/index.php?title=DME&action=edit&redlink=1" class="new" title="DME (síða er ekki enn til)">DME</a> (dímetýleter) er gas sem hægt er að nota sem eldsneyti. DME er framleitt úr metanóli sem er framleitt úr efnasmíðagasi (syngas). Syngas samanstendur af CO og H<sub>2</sub> í mistórum hlutföllum. Hægt er að fá syngas með því að rafgreina vetni og safna CO frá útblæstri verksmiðja. Frumorkan kemur því frá rafmagninu. Hægt er að nota DME í breyttum <a href="/wiki/D%C3%ADsilv%C3%A9l" title="Dísilvél">dísilvélum</a> og er því möguleiki á að nýta raforkuna til að knýja farartæki bæði fyrir íslenska bíla- eða skipaflotan. </p> <div class="mw-heading mw-heading2"><h2 id="Tilvísanir"><span id="Tilv.C3.ADsanir"></span>Tilvísanir</h2></div> <div class="references-small"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www.co2.is/Apps/WebObjects/Orkustofnun.woa/wa/dp?id=6852">http://www.co2.is/Apps/WebObjects/Orkustofnun.woa/wa/dp?id=6852</a></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www.efnahagsraduneyti.is/media/Acrobat/skyr99_1.pdf">http://www.efnahagsraduneyti.is/media/Acrobat/skyr99_1.pdf</a> </span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www4.unak.is/haskolifolksins/page/hfnyskopunlifetanol">http://www4.unak.is/haskolifolksins/page/hfnyskopunlifetanol</a></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www4.unak.is/haskolifolksins/page/hfnyskopunlifetanol">http://www4.unak.is/haskolifolksins/page/hfnyskopunlifetanol</a></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><a href="#cite_ref-5">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www.brimborg.is/Lestu-frettirnar/~/NewsID/858">http://www.brimborg.is/Lestu-frettirnar/~/NewsID/858</a></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><a href="#cite_ref-6">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www.mbl.is/mm/gagnasafn/grein.html?radnr=1151568">http://www.mbl.is/mm/gagnasafn/grein.html?radnr=1151568</a></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><a href="#cite_ref-7">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www.gas-plants.com/methane-properties.html">http://www.gas-plants.com/methane-properties.html</a></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><a href="#cite_ref-8">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www.nmi.is/files/Framlei%C3%B0sla%20eldsneytis%20%C3%BAr%20innlendum%20hr%C3%A1efnum_1962998647.pdf">http://www.nmi.is/files/Framlei%C3%B0sla%20eldsneytis%20%C3%BAr%20innlendum%20hr%C3%A1efnum_1962998647.pdf</a> </span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><a href="#cite_ref-9">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://metanbill.is/Hva%C3%B0_er_metan_">http://metanbill.is/Hva%C3%B0_er_metan_</a>?</span> </li> <li id="cite_note-10"><span class="mw-cite-backlink"><a href="#cite_ref-10">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www.metan.is/user/cat/show/69/358">http://www.metan.is/user/cat/show/69/358</a></span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><a href="#cite_ref-11">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www.nmi.is/files/Framlei%C3%B0sla%20eldsneytis%20%C3%BAr%20innlendum%20hr%C3%A1efnum_1962998647.pdf">http://www.nmi.is/files/Framlei%C3%B0sla%20eldsneytis%20%C3%BAr%20innlendum%20hr%C3%A1efnum_1962998647.pdf</a></span> </li> <li id="cite_note-12"><span class="mw-cite-backlink"><a href="#cite_ref-12">↑</a></span> <span class="reference-text"><a class="external free" href="https://is.wikipedia.org/wiki/Metan">http://is.wikipedia.org/wiki/Metan</a></span> </li> <li id="cite_note-13"><span class="mw-cite-backlink"><a href="#cite_ref-13">↑</a></span> <span class="reference-text"><a class="external free" href="https://en.wikipedia.org/wiki/Biofuel">http://en.wikipedia.org/wiki/Biofuel</a></span> </li> <li id="cite_note-14"><span class="mw-cite-backlink"><a href="#cite_ref-14">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www.nmi.is/files/Framlei%C3%B0sla%20eldsneytis%20%C3%BAr%20innlendum%20hr%C3%A1efnum_1962998647.pdf">http://www.nmi.is/files/Framlei%C3%B0sla%20eldsneytis%20%C3%BAr%20innlendum%20hr%C3%A1efnum_1962998647.pdf</a></span> </li> <li id="cite_note-15"><span class="mw-cite-backlink"><a href="#cite_ref-15">↑</a></span> <span class="reference-text">www.mbl.is/mm/frettir/innlent/2009/09/.../lifdisilolia_ur_vetrarrepju/ - </span> </li> <li id="cite_note-16"><span class="mw-cite-backlink"><a href="#cite_ref-16">↑</a></span> <span class="reference-text">www.nmi.is/.../Framleiðsla%20eldsneytis%20úr%20innlendum%20hráefnum_1962998647.pdf -</span> </li> <li id="cite_note-17"><span class="mw-cite-backlink"><a href="#cite_ref-17">↑</a></span> <span class="reference-text">tp://www.nmi.is/files/Framlei%C3%B0sla%20eldsneytis%20%C3%BAr%20innlendum%20hr%C3%A1efnum_1962998647.pdf </span> </li> <li id="cite_note-18"><span class="mw-cite-backlink"><a href="#cite_ref-18">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www.nmi.is/files/Framlei%C3%B0sla%20eldsneytis%20%C3%BAr%20innlendum%20hr%C3%A1efnum_1962998647.pdf">http://www.nmi.is/files/Framlei%C3%B0sla%20eldsneytis%20%C3%BAr%20innlendum%20hr%C3%A1efnum_1962998647.pdf</a></span> </li> <li id="cite_note-19"><span class="mw-cite-backlink"><a href="#cite_ref-19">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www.efnahagsraduneyti.is/media/Acrobat/skyr99_1.pdf">http://www.efnahagsraduneyti.is/media/Acrobat/skyr99_1.pdf</a></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Heimildir">Heimildir</h2></div> <ul><li>Aubrecht, Gordon J., <i>Energy Physical, Enviromental, and Social Impact</i> (3ja útgáfa), (USA: Pearson Education, Inc., 2006).</li> <li><style data-mw-deduplicate="TemplateStyles:r1870430">.mw-parser-output .citation a.new{color:black}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .citation a.new{color:white}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .citation a.new{color:white}}.mw-parser-output .citation{word-wrap:break-word}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}</style><style data-mw-deduplicate="TemplateStyles:r1873994">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free a,.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited a,.mw-parser-output .id-lock-registration a,.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription a,.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:#d33}.mw-parser-output .cs1-visible-error{color:#d33}.mw-parser-output .cs1-maint{display:none;color:#2C882D;margin-left:0.3em}.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911F}html.skin-theme-clientpref-night .mw-parser-output .cs1-visible-error,html.skin-theme-clientpref-night .mw-parser-output .cs1-hidden-error{color:#f8a397}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-visible-error,html.skin-theme-clientpref-os .mw-parser-output .cs1-hidden-error{color:#f8a397}html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911F}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.visindavefur.is/svar.php?id=10973">„Hvað er metangas og hvernig er það nýtt?“</a>. <i><a href="/wiki/V%C3%ADsindavefurinn" title="Vísindavefurinn">Vísindavefurinn</a></i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=V%C3%ADsindavefurinn&rft.atitle=Hva%C3%B0+er+metangas+og+hvernig+er+%C3%BEa%C3%B0+n%C3%BDtt%3F&rft_id=https%3A%2F%2Fwww.visindavefur.is%2Fsvar.php%3Fid%3D10973&rfr_id=info%3Asid%2Fis.wikipedia.org%3AL%C3%ADfeldsneyti" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1870430"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1873994"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.visindavefur.is/svar.php?id=47334">„Ef metan er að mestu leyti vetni, hvað gerir það svo óæskilega gastegund?“</a>. <i><a href="/wiki/V%C3%ADsindavefurinn" title="Vísindavefurinn">Vísindavefurinn</a></i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=V%C3%ADsindavefurinn&rft.atitle=Ef+metan+er+a%C3%B0+mestu+leyti+vetni%2C+hva%C3%B0+gerir+%C3%BEa%C3%B0+svo+%C3%B3%C3%A6skilega+gastegund%3F&rft_id=https%3A%2F%2Fwww.visindavefur.is%2Fsvar.php%3Fid%3D47334&rfr_id=info%3Asid%2Fis.wikipedia.org%3AL%C3%ADfeldsneyti" class="Z3988"></span></li> <li><a rel="nofollow" class="external free" href="http://www.eea.europa.eu/is/articles/ef-sprenging-verdur-i-lifeldsneyti-2014-umskiptin-fra-oliu-til-lifeldsneytis-eru-ekki-an-ahettu">http://www.eea.europa.eu/is/articles/ef-sprenging-verdur-i-lifeldsneyti-2014-umskiptin-fra-oliu-til-lifeldsneytis-eru-ekki-an-ahettu</a></li> <li><a rel="nofollow" class="external free" href="http://www.nmi.is/files/Framlei%C3%B0sla%20eldsneytis%20%C3%BAr%20innlendum%20hr%C3%A1efnum_1962998647.pdf">http://www.nmi.is/files/Framlei%C3%B0sla%20eldsneytis%20%C3%BAr%20innlendum%20hr%C3%A1efnum_1962998647.pdf</a></li> <li>Metan ehf. (2003). Sótt af: <a rel="nofollow" class="external free" href="http://www.metan.is/user/home/">http://www.metan.is/user/home/</a></li> <li>Ný kynslóð metanbíla. Hekla. Sótt af: <a rel="nofollow" class="external free" href="http://www.hekla.is/Pages/19?NewsID=392">http://www.hekla.is/Pages/19?NewsID=392</a></li> <li>Gas Plant Manufacturers. Methane Properties. Sótt af: <a rel="nofollow" class="external free" href="http://www.gas-plants.com/methane-properties.html">http://www.gas-plants.com/methane-properties.html</a></li> <li>Vefur Nýsköpunarmiðstöðvar Íslands, sótt 11. apríl 2010 af: <a rel="nofollow" class="external free" href="http://www.nmi.is/files/Framlei%C3%B0sla%20eldsneytis%20%C3%BAr%20innlendum%20hr%C3%A1efnum_1962998647.pdf">http://www.nmi.is/files/Framlei%C3%B0sla%20eldsneytis%20%C3%BAr%20innlendum%20hr%C3%A1efnum_1962998647.pdf</a></li> <li>Vefur morgunblaðsins, sótt af: <a rel="nofollow" class="external free" href="http://www.amx.is/tenglar/mbl/8545/">http://www.amx.is/tenglar/mbl/8545/</a></li> <li>Vefur Víkurfrétta, sótt 18. apríl 2009 af <a rel="nofollow" class="external free" href="http://www.vf.is/Vidskipti/35877/default.aspx">http://www.vf.is/Vidskipti/35877/default.aspx</a></li> <li>Gas Plant Manufacturers. Methane Properties. Sótt af: <a rel="nofollow" class="external free" href="http://www.gas-plants.com/methane-properties.html">http://www.gas-plants.com/methane-properties.html</a></li> <li>Metan ehf. (2003). Sótt af: <a rel="nofollow" class="external free" href="http://www.metan.is/user/home/">http://www.metan.is/user/home/</a></li> <li>Methane. Sótt af: <a rel="nofollow" class="external free" href="http://scifun.chem.wisc.edu/chemweek/METHANE/Methane.html">http://scifun.chem.wisc.edu/chemweek/METHANE/Methane.html</a></li> <li>Co2.is. Sótt af: <a rel="nofollow" class="external free" href="http://www.co2.is/Apps/WebObjects/Orkustofnun.woa/wa/dp?id=6852">http://www.co2.is/Apps/WebObjects/Orkustofnun.woa/wa/dp?id=6852</a></li> <li>Ásgeir Leifsson (1994), morgunblaðið. Sótt af: <a rel="nofollow" class="external free" href="http://www.mbl.is/mm/gagnasafn/grein.html?grein_id=162763">http://www.mbl.is/mm/gagnasafn/grein.html?grein_id=162763</a></li> <li>Brimborg.is. sótt af: <a rel="nofollow" class="external free" href="http://www.brimborg.is/Lestu-frettirnar/~/NewsID/860">http://www.brimborg.is/Lestu-frettirnar/~/NewsID/860</a></li> <li>Umhverfisvænir metanbílar til Ölgerðarinnar. (2008). Sótt af: <a rel="nofollow" class="external free" href="http://www.billinn.is/index.php?menu=news&article=1101">http://www.billinn.is/index.php?menu=news&article=1101</a></li> <li>"Towards Sustainable Production and Use of Resources: Assessing Biofuels". United Nations Environment Programme. 2010-11-04. <a rel="nofollow" class="external free" href="http://www.unep.fr/scp/rpanel/pdf/Assessing_Biofuels_Full_Report.pdf">http://www.unep.fr/scp/rpanel/pdf/Assessing_Biofuels_Full_Report.pdf</a>. Retrieved 2009-10-24.</li> <li>Vefur Nýsköpunarmiðstöðvar Íslands, sótt 11. apríl 2010 af: <a rel="nofollow" class="external free" href="http://www.nmi.is/files/Framlei%C3%B0sla%20eldsneytis%20%C3%BAr%20innlendum%20hr%C3%A1efnum_1962998647.pdf">http://www.nmi.is/files/Framlei%C3%B0sla%20eldsneytis%20%C3%BAr%20innlendum%20hr%C3%A1efnum_1962998647.pdf</a></li> <li>Vefur Carbon Energy, Methanol/Industrial Chemicals, sótt 20. apríl 2009 af: <a rel="nofollow" class="external free" href="http://www.metex.com.au/index.php/partnering/methanol--industrial-chemicals">http://www.metex.com.au/index.php/partnering/methanol--industrial-chemicals</a></li> <li>Vefur biofuel.org. sótt af: <a rel="nofollow" class="external free" href="http://biofuel.org.uk/what-is-syngas.html">http://biofuel.org.uk/what-is-syngas.html</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Tenglar">Tenglar</h2></div> <ul><li><a rel="nofollow" class="external text" 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