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Direct reduction of mixed biomass-Fe_2O_3 briquettes using biomass-generated syngas

机译:利用生物质产生的合成气直接还原混合的生物质-Fe_2O_3型煤

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摘要

This paper presents a novel ironmaking technology using biomass and iron oxide. The biomass instead of coke was mixed together with iron ore powder, water, limestone and bentonite for the production of Fe_2O_3 briquettes. The sintering process and direct reduction of briquettes were simultaneously conducted in the same reactor. Briquettes with different composition were isothermally reduced directly to metallic iron with H_2-CO mixtures at different temperatures (ranging from 900 to 1100℃) and reaction time (30-60 min) to investigate the effects of briquettes composition, reduction temperature, reaction time and reducing gas composition on the quality of metallic iron. The results show that the increase of reduction temperature, reaction time and H_2 content of the reducing gas are favorable for the quality of pig iron, within the experimental conditions. At a reduction temperature of 1100℃ and reaction time of 60 min, the Fe content in product achieves the maximum 94.7%.
机译:本文提出了一种利用生物质和氧化铁的新型炼铁技术。将生物质代替焦炭与铁矿石粉,水,石灰石和膨润土混合在一起,以生产Fe_2O_3型煤。烧结过程和团块的直接还原在同一反应器中同时进行。在不同温度(900〜1100℃)和反应时间(30-60min)下,用H_2-CO混合气将不同组成的团块直接等温还原为金属铁,研究了团块组成,还原温度,反应时间和反应时间。减少气体成分对金属铁的质量。结果表明,在实验条件下,还原温度,反应时间和还原气中H_2含量的增加有利于生铁的质量。在1100℃的还原温度和60分钟的反应时间下,产品中的Fe含量最高达到94.7%。

著录项

  • 来源
    《Renewable energy》 |2011年第12期|p.3332-3336|共5页
  • 作者单位

    School of Environmental and Municipal Engineering, Qingdao Technological University, 11 Fushun Rd., Qingdao 266033, China;

    School of Environmental and Municipal Engineering, Qingdao Technological University, 11 Fushun Rd., Qingdao 266033, China;

    School of Environmental and Municipal Engineering, Qingdao Technological University, 11 Fushun Rd., Qingdao 266033, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    biomass; syngas; direct reduction; fe_2o_3 briquette;

    机译:生物质合成气直接还原Fe_2o_3型煤;

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