Investigation on high-temperature reactions of organic compounds and its control for efficient utilization of complex wastes in the ironmaking process

炼铁过程中有机化合物高温反应及其控制以实现复杂废物的高效利用

基本信息

  • 批准号:
    18360362
  • 负责人:
  • 金额:
    $ 10.75万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    2006
  • 资助国家:
    日本
  • 起止时间:
    2006 至 2007
  • 项目状态:
    已结题

项目摘要

In the ironmaking process, increasing in the production rate and lowering the reduction temperature of iron burdens are urgent issues to save energy consumption and therefore to minimize CO_2 emissions. The reduction of iron ore composite containing carbonaceous materials has been developed as one of the promising processes to cope with such problems. On the other hand, waste plastics have potentials to supply the reducing gases such as H_2, CO and CH_4 through their pyrolysis process. Utilization of such gases for the iron ore reduction process is one of effective ways to reduce the CO_2 emissions.The objectives are to understand the reduction behavior of the hematite composite with reductants particles and to clarify its optimum structure. polyethylene and graphite were used for the reductants. The former was as a model material of organic wastes. The composite was heated up to 1427K with the heating rate of 0.6-3.7K/s. The contribution of polyethylene to the reduction of iron oxide was determined by carrying out the continuous analyses of the generated gas concentrations and the microstructure observation.The contribution of polyethylene was limited when the hematite composite uniformly-mixed with the reductant was used. The addition of excess polyethylene to the composite hardly acted as reductant. The addition of graphite to the hematite composite containing polyethylene led to higher reduction degree. This is because the formation of cracks inside the composite enhanced the direct exhaust of generated gas without the contribution to the reduction reaction. On the other hand, the double-layer composite, whose polyethylene content in the center layer was larger than that in the inner, showed an effective utilization of polyethylene compared to the homogeneous composite. The composite material with the double-layer structure can be applicable to the ironmaking processes using rotary hearth furnace and moving bed.
在炼铁生产过程中,提高生产率和降低炉料还原温度是降低能耗、减少CO_2排放的迫切问题。含碳铁矿石复合物的还原已被开发为科普这些问题的有前途的方法之一。另一方面,废塑料在热解过程中具有提供H_2、CO和CH_4等还原性气体的潜力。将这些气体用于铁矿石还原过程是减少CO_2排放的有效途径之一,本研究的目的是了解还原剂颗粒与赤铁矿复合物的还原行为,并阐明其最佳结构。聚乙烯和石墨用作还原剂。前者作为有机废弃物的模型材料。以0.6-3.7K/s的升温速率将复合材料加热到1427 K。通过对生成气体浓度的连续分析和微观结构的观察,确定了聚乙烯对氧化铁还原的贡献,当使用与还原剂均匀混合的赤铁矿复合物时,聚乙烯的贡献有限。过量聚乙烯的加入几乎不起还原剂的作用。石墨的加入提高了赤铁矿/聚乙烯复合材料的还原度。这是因为在复合材料内部形成裂纹增强了所产生气体的直接排出,而没有对还原反应的贡献。另一方面,双层复合材料,其在中心层中的聚乙烯含量大于在内部,显示出有效的利用聚乙烯相比,均匀的复合材料。该双层结构的复合材料可适用于转底炉和移动床炼铁工艺。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
REDUCTION BEHAVIOR OF HEMATITE-GRAPHITE-PLASTICS COMPOSITE
赤铁矿-石墨-塑料复合材料的还原行为
プラスチック-酸化鉄コンポジットの昇温下における反応挙動
塑料-氧化铁复合材料高温反应行为
  • DOI:
  • 发表时间:
    2006
  • 期刊:
  • 影响因子:
    0
  • 作者:
    K. Kawamoto;et. al.;K.Kawamoto et al.;秋山拓己 他
  • 通讯作者:
    秋山拓己 他
Reduction Behavior of Hematite Composite with Graphite and Polyethylene
赤铁矿与石墨和聚乙烯复合材料的还原行为
  • DOI:
  • 发表时间:
    2007
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Taichi Murakami;et. al.
  • 通讯作者:
    et. al.
Reduction Behavior of the Composite Composed of Iron Oxide and Plastic Wastes
氧化铁与塑料废弃物复合材料的还原行为
炭材-鉄鉱石コンポジットの反応挙動に及ぼす鉱石特性の影響
矿石性质对碳质-铁矿石复合材料反应行为的影响
  • DOI:
  • 发表时间:
    2008
  • 期刊:
  • 影响因子:
    0
  • 作者:
    村上 太一;ら
  • 通讯作者:
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KASAI Eiki其他文献

KASAI Eiki的其他文献

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{{ truncateString('KASAI Eiki', 18)}}的其他基金

Ironmaking process with minimal greenhouse gas emissions under ultra-high pressure reduction
超高压减压下温室气体排放最少的炼铁工艺
  • 批准号:
    23360331
  • 财政年份:
    2011
  • 资助金额:
    $ 10.75万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Construction of new principle of ironmaking process enabled to decrease by half in CO_2 emissions
构建炼铁工艺新原理使CO_2排放量减少一半
  • 批准号:
    20246111
  • 财政年份:
    2008
  • 资助金额:
    $ 10.75万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Quantification of Formation Rate of Dioxins from Unburned Carbon Particles and the Suppression of their Formation
未燃烧碳颗粒中二恶英形成速率的定量及其形成的抑制
  • 批准号:
    14350395
  • 财政年份:
    2002
  • 资助金额:
    $ 10.75万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Formation and Decomposition Mechanisms of Dioxins in High Temperature Packed Bed Processes
高温填充床过程中二恶英的形成与分解机理
  • 批准号:
    11650756
  • 财政年份:
    1999
  • 资助金额:
    $ 10.75万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Rapid Determination of Different Nitrogen Oxides in the Outlet Gas from the Iron Ore Sintering Process by Means of Infra-red Spectroscopy
红外光谱法快速测定铁矿石烧结过程尾气中的不同氮氧化物
  • 批准号:
    06555220
  • 财政年份:
    1994
  • 资助金额:
    $ 10.75万
  • 项目类别:
    Grant-in-Aid for Developmental Scientific Research (B)

相似海外基金

Japan JSPS Program: Use of Pyrolysis Gas Chromatography Mass Spectrometry for Assessing the State of Preservation of Proteinaceous Materials
日本 JSPS 计划:使用热解气相色谱质谱法评估蛋白质材料的保存状态
  • 批准号:
    9600262
  • 财政年份:
    1996
  • 资助金额:
    $ 10.75万
  • 项目类别:
    Fellowship Award
Instrumental advances in pyrolysis-gas chromatography
热解气相色谱仪器的进展
  • 批准号:
    1952-1993
  • 财政年份:
    1996
  • 资助金额:
    $ 10.75万
  • 项目类别:
    Discovery Grants Program - Individual
Instrumental advances in pyrolysis-gas chromatography
热解气相色谱仪器的进展
  • 批准号:
    1952-1993
  • 财政年份:
    1995
  • 资助金额:
    $ 10.75万
  • 项目类别:
    Discovery Grants Program - Individual
Instrumental advances in pyrolysis-gas chromatography
热解气相色谱仪器的进展
  • 批准号:
    1952-1993
  • 财政年份:
    1994
  • 资助金额:
    $ 10.75万
  • 项目类别:
    Discovery Grants Program - Individual
Instrumental advances in pyrolysis-gas chromatography
热解气相色谱仪器的进展
  • 批准号:
    1952-1993
  • 财政年份:
    1993
  • 资助金额:
    $ 10.75万
  • 项目类别:
    Discovery Grants Program - Individual
Pyrolysis - gas chromatograph unit
热解-气相色谱仪装置
  • 批准号:
    122775-1992
  • 财政年份:
    1991
  • 资助金额:
    $ 10.75万
  • 项目类别:
    Research Tools and Instruments - Category 1 (<$150,000)
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