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Alternative Coke from Inferior Coal for Ferro-Alloy Industry

机译:来自劣质煤的铁合金行业的替代焦

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摘要

Carbothermic reduction of iron oxide is an important reaction in Ferro-alloy production process. Coke and bio-char are the main resource carbon for these industries. Carbon not only takes part in reduction reaction but also have important role in maintaining required carbon percentage in metal and contribution in energy supply for the process. Thus the price of carbonaceous material has significant contribution to the overall cost of Ferro-alloy production. Suitable low cost carbon materials are always in demand for such industries. In the present study low rank Indian coal has been carbonised in medium temperature level for producing an alternative semi-coke for this purpose. The coal sample has been first fractionated in two parts based on particle size distribution. Larger size samples are directly carbonised in a laboratory scale coke oven using non-recovery type coke making technique. Finer fractions are first carbonised, then agglomerated into small briquettes and subsequently de-volatilised for lowering volatile matter content, enhancement of fixed carbon and improvement of other properties.
机译:氧化氧化铁的碳热还原是铁合金生产过程中的重要反应。可乐和生物炭是这些行业的主要资源碳。碳不仅参与还原反应,而且在维持所需的碳百分比和该过程的能源供应贡献中也具有重要作用。因此,碳质材料的价格对铁合金生产的总成本具有显着贡献。合适的低成本碳材料始终满足这些行业的需求。在本研究中,低等级印度煤已在中温水平中被碳化为此目的,为此目的生产另类半焦炭。基于粒度分布,煤样首先分馏两部分。使用非回收型焦炭制作技术,较大尺寸的样品在实验室比例焦炉中直接碳化。优选的级分是首先碳化,然后将成分中的聚集成小煤层并随后去挥发以降低挥发性物质含量,提高固定碳和改善其他性质。

著录项

  • 来源
    《Solid Fuel Chemistry》 |2020年第6期|406-410|共5页
  • 作者单位

    Cent Inst Min & Fuel Res Carbonisat Sect PO FRI Jharkhand 828108 Digwadih India;

    Cent Inst Min & Fuel Res Carbonisat Sect PO FRI Jharkhand 828108 Digwadih India;

    Cent Inst Min & Fuel Res Carbonisat Sect PO FRI Jharkhand 828108 Digwadih India;

    Cent Inst Min & Fuel Res Carbonisat Sect PO FRI Jharkhand 828108 Digwadih India;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    semi-coke; Ferro-alloy; carbonisation; Indian coal;

    机译:半焦;铁合金;碳化;印度煤炭;

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