Search results for: ironmaking

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ironmaking</title> <meta name="description" content="Search results for: ironmaking"> <meta name="keywords" content="ironmaking"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="ironmaking"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 5</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: ironmaking</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5</span> A Patent Trend Analysis for Hydrogen Based Ironmaking: Identifying the Technology鈥檚 Development Phase</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ebru%20Kaymaz">Ebru Kaymaz</a>, <a href="https://publications.waset.org/abstracts/search?q=Asl%C4%B1%20%C4%B0lbay%20Hamamc%C4%B1"> Asl谋陌lbay Hamamc谋</a>, <a href="https://publications.waset.org/abstracts/search?q=Yakup%20Enes%20Garip"> Yakup Enes Garip</a>, <a href="https://publications.waset.org/abstracts/search?q=Samet%20Ay"> Samet Ay</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The use of hydrogen as a fuel is important for decreasing carbon emissions. For the steel industry, reducing carbon emissions is one of the most important agendas of recent times globally. Because of the Paris Agreement requirements, European steel industry studies on green steel production. Although many literature reviews have analyzed this topic from technological and hydrogen based ironmaking, there are very few studies focused on patents of decarbonize parts of the steel industry. Hence, this study focus on technological progress of hydrogen based ironmaking and on understanding the main trends through patent data. All available patent data were collected from Questel Orbit. The trend analysis of more than 900 patent documents has been carried out by using Questel Orbit Intellixir to analyze a large number of data for scientific intelligence. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hydrogen%20based%20ironmaking" title="hydrogen based ironmaking">hydrogen based ironmaking</a>, <a href="https://publications.waset.org/abstracts/search?q=DRI" title=" DRI"> DRI</a>, <a href="https://publications.waset.org/abstracts/search?q=direct%20reduction" title=" direct reduction"> direct reduction</a>, <a href="https://publications.waset.org/abstracts/search?q=carbon%20emission" title=" carbon emission"> carbon emission</a>, <a href="https://publications.waset.org/abstracts/search?q=steelmaking" title=" steelmaking"> steelmaking</a>, <a href="https://publications.waset.org/abstracts/search?q=patent%20analysis" title=" patent analysis"> patent analysis</a> </p> <a href="https://publications.waset.org/abstracts/156678/a-patent-trend-analysis-for-hydrogen-based-ironmaking-identifying-the-technologys-development-phase" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156678.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">144</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4</span> Steel Dust as a Coating Agent for Iron Ore Pellets at Ironmaking</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Bahgat">M. Bahgat</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Hanafy"> H. Hanafy</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Al-Tassan"> H. Al-Tassan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cluster formation is an essential phenomenon during direct reduction processes at shaft furnaces. Decreasing the reducing temperature to avoid this problem can cause a significant drop in throughput. In order to prevent sticking of pellets, a coating material basically inactive under the reducing conditions prevailing in the shaft furnace, should be applied to cover the outer layer of the pellets. In the present work, steel dust is used as coating material for iron ore pellets to explore dust coating effectiveness and determines the best coating conditions. Steel dust coating is applied for iron ore pellets in various concentrations. Dust slurry concentrations of 5.0-30% were used to have a coated steel dust amount of 1.0-5.0 kg per ton iron ore. Coated pellets with various concentrations were reduced isothermally in weight loss technique with simulated gas mixture to the composition of reducing gases at shaft furnaces. The influences of various coating conditions on the reduction behavior and the morphology were studied. The optimum reduced samples were comparatively applied for sticking index measurement. It was found that the optimized steel dust coating condition that achieve higher reducibility with lower sticking index was 30% steel dust slurry concentration with 3.0 kg steel dust/ton ore. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=reduction" title="reduction">reduction</a>, <a href="https://publications.waset.org/abstracts/search?q=ironmaking" title=" ironmaking"> ironmaking</a>, <a href="https://publications.waset.org/abstracts/search?q=steel%20dust" title=" steel dust"> steel dust</a>, <a href="https://publications.waset.org/abstracts/search?q=coating" title=" coating"> coating</a> </p> <a href="https://publications.waset.org/abstracts/83968/steel-dust-as-a-coating-agent-for-iron-ore-pellets-at-ironmaking" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/83968.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">302</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> Numerical Study on the Performance of Upgraded Victorian Brown Coal in an Ironmaking Blast Furnace</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Junhai%20Liao">Junhai Liao</a>, <a href="https://publications.waset.org/abstracts/search?q=Yansong%20Shen"> Yansong Shen</a>, <a href="https://publications.waset.org/abstracts/search?q=Aibing%20Yu"> Aibing Yu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A 3D numerical model is developed to simulate the complicated in-furnace combustion phenomena in the lower part of an ironmaking blast furnace (BF) while using pulverized coal injection (PCI) technology to reduce the consumption of relatively expensive coke. The computational domain covers blowpipe-tuyere-raceway-coke bed in the BF. The model is validated against experimental data in terms of gaseous compositions and coal burnout. Parameters, such as coal properties and some key operational variables, play an important role on the performance of coal combustion. Their diverse effects on different combustion characteristics are examined in the domain, in terms of gas compositions, temperature, and burnout. The heat generated by the combustion of upgraded Victorian brown coal is able to meet the heating requirement of a BF, hence making upgraded brown coal injected into BF possible. It is evidenced that the model is suitable to investigate the mechanism of the PCI operation in a BF. Prediction results provide scientific insights to optimize and control of the PCI operation. This model cuts the cost to investigate and understand the comprehensive combustion phenomena of upgraded Victorian brown coal in a full-scale BF. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=blast%20furnace" title="blast furnace">blast furnace</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20study" title=" numerical study"> numerical study</a>, <a href="https://publications.waset.org/abstracts/search?q=pulverized%20coal%20injection" title=" pulverized coal injection"> pulverized coal injection</a>, <a href="https://publications.waset.org/abstracts/search?q=Victorian%20brown%20coal" title=" Victorian brown coal"> Victorian brown coal</a> </p> <a href="https://publications.waset.org/abstracts/72804/numerical-study-on-the-performance-of-upgraded-victorian-brown-coal-in-an-ironmaking-blast-furnace" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/72804.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">243</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2</span> Waste-Based Surface Modification to Enhance Corrosion Resistance of Aluminium Bronze Alloy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wilson%20Handoko">Wilson Handoko</a>, <a href="https://publications.waset.org/abstracts/search?q=Farshid%20Pahlevani"> Farshid Pahlevani</a>, <a href="https://publications.waset.org/abstracts/search?q=Isha%20Singla"> Isha Singla</a>, <a href="https://publications.waset.org/abstracts/search?q=Himanish%20Kumar"> Himanish Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Veena%20Sahajwalla"> Veena Sahajwalla</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Aluminium bronze alloys are well known for their superior abrasion, tensile strength and non-magnetic properties, due to the co-presence of iron (Fe) and aluminium (Al) as alloying elements and have been commonly used in many industrial applications. However, continuous exposure to the marine environment will accelerate the risk of a tendency to Al bronze alloys parts failures. Although a higher level of corrosion resistance properties can be achieved by modifying its elemental composition, it will come at a price through the complex manufacturing process and increases the risk of reducing the ductility of Al bronze alloy. In this research, the use of ironmaking slag and waste plastic as the input source for surface modification of Al bronze alloy was implemented. Microstructural analysis conducted using polarised light microscopy and scanning electron microscopy (SEM) that is equipped with energy dispersive spectroscopy (EDS). An electrochemical corrosion test was carried out through Tafel polarisation method and calculation of protection efficiency against the base-material was determined. Results have indicated that uniform modified surface which is as the result of selective diffusion process, has enhanced corrosion resistance properties up to 12.67%. This approach has opened a new opportunity to access various industrial utilisations in commercial scale through minimising the dependency on natural resources by transforming waste sources into the protective coating in environmentally friendly and cost-effective ways. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aluminium%20bronze" title="aluminium bronze">aluminium bronze</a>, <a href="https://publications.waset.org/abstracts/search?q=waste-based%20surface%20modification" title=" waste-based surface modification"> waste-based surface modification</a>, <a href="https://publications.waset.org/abstracts/search?q=tafel%20polarisation" title=" tafel polarisation"> tafel polarisation</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion%20resistance" title=" corrosion resistance"> corrosion resistance</a> </p> <a href="https://publications.waset.org/abstracts/98985/waste-based-surface-modification-to-enhance-corrosion-resistance-of-aluminium-bronze-alloy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/98985.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">236</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> Production of Pre-Reduction of Iron Ore Nuggets with Lesser Sulphur Intake by Devolatisation of Boiler Grade Coal</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chanchal%20Biswas">Chanchal Biswas</a>, <a href="https://publications.waset.org/abstracts/search?q=Anrin%20Bhattacharyya"> Anrin Bhattacharyya</a>, <a href="https://publications.waset.org/abstracts/search?q=Gopes%20Chandra%20Das"> Gopes Chandra Das</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahua%20Ghosh%20Chaudhuri"> Mahua Ghosh Chaudhuri</a>, <a href="https://publications.waset.org/abstracts/search?q=Rajib%20Dey"> Rajib Dey</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Boiler coals with low fixed carbon and higher ash content have always challenged the metallurgists to develop a suitable method for their utilization. In the present study, an attempt is made to establish an energy effective method for the reduction of iron ore fines in the form of nuggets by using ‘Syngas’. By devolatisation (expulsion of volatile matter by applying heat) of boiler coal, gaseous product (enriched with reducing agents like CO, CO2, H2, and CH4 gases) is generated. Iron ore nuggets are reduced by this syngas. For that reason, there is no direct contact between iron ore nuggets and coal ash. It helps to control the minimization of the sulphur intake of the reduced nuggets. A laboratory scale devolatisation furnace designed with reduction facility is evaluated after in-depth studies and exhaustive experimentations including thermo-gravimetric (TG-DTA) analysis to find out the volatile fraction present in boiler grade coal, gas chromatography (GC) to find out syngas composition in different temperature and furnace temperature gradient measurements to minimize the furnace cost by applying one heating coil. The nuggets are reduced in the devolatisation furnace at three different temperatures and three different times. The pre-reduced nuggets are subjected to analytical weight loss calculations to evaluate the extent of reduction. The phase and surface morphology analysis of pre-reduced samples are characterized using X-ray diffractometry (XRD), energy dispersive x-ray spectrometry (EDX), scanning electron microscopy (SEM), carbon sulphur analyzer and chemical analysis method. Degree of metallization of the reduced nuggets is 78.9% by using boiler grade coal. The pre-reduced nuggets with lesser sulphur content could be used in the blast furnace as raw materials or coolant which would reduce the high quality of coke rate of the furnace due to its pre-reduced character. These can be used in Basic Oxygen Furnace (BOF) as coolant also. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alternative%20ironmaking" title="alternative ironmaking">alternative ironmaking</a>, <a href="https://publications.waset.org/abstracts/search?q=coal%20gasification" title=" coal gasification"> coal gasification</a>, <a href="https://publications.waset.org/abstracts/search?q=extent%20of%20reduction" title=" extent of reduction"> extent of reduction</a>, <a href="https://publications.waset.org/abstracts/search?q=nugget%20making" title=" nugget making"> nugget making</a>, <a href="https://publications.waset.org/abstracts/search?q=syngas%20based%20DRI" title=" syngas based DRI"> syngas based DRI</a>, <a href="https://publications.waset.org/abstracts/search?q=solid%20state%20reduction" title=" solid state reduction"> solid state reduction</a> </p> <a href="https://publications.waset.org/abstracts/48877/production-of-pre-reduction-of-iron-ore-nuggets-with-lesser-sulphur-intake-by-devolatisation-of-boiler-grade-coal" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48877.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">260</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/WASET-16th-foundational-anniversary.pdf">WASET celebrates its 16th foundational 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Search results for: ironmaking