Rapid reduction of low grade iron ore and effective energy conversion of low rank coal by enhancing a solid-solid reaction

通过强化固固反应快速还原低品位铁矿石并有效转化低阶煤能量

• 批准号: 23360348
• 负责人: MIURA Kouichi
• 金额: $ 11.98万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23360348/
• 关键词: 固固反応; 低品位鉄鉱石; 低品位炭; 還元反応; ガス化反応; 低品位鉱石; 環境対策; 自然発火

This works aimed at increasing the efficiency of blast furnace operation in steel industry. To do so, a practical method to promote the slowest solid-solid reaction, reduction of iron ore by coke itself, was proposed. First, it was shown that the solid-solid reaction actually proceeds at as low as 600 C by using nano sized Fe2O3 particles as a model iron ore. Next, a method to realize the rapid solid-solid reaction in blast furnace was examined. It was found that inserting thermo-plastic carbonaceous materials prepared from low rank coal into nano-sized pores formed in a low grade iron ore by hydration is effective to realize the rapid solid-solid reaction.

本工作旨在提高钢铁行业高炉操作的效率。为此，提出了一种促进最慢的固-固反应--焦炭自身还原铁矿石的实用方法。首先，通过使用纳米尺寸的Fe 2 O3颗粒作为模型铁矿石，表明固-固反应实际上在低至600 ℃下进行。其次，研究了在高炉中实现快速固-固反应的方法。结果表明，将低阶煤制备的热塑性炭质材料嵌入低品位铁矿石水化形成的纳米孔隙中，可有效实现快速固-固反应。

项目成果

Enhancement of Reduction Rate of Iron Ore by Utilizing Low Grade Iron Ore and Brown Coal Derived Carbonaceous Materials

• DOI: 10.2355/isijinternational.51.1234
• 发表时间: 2011
• 期刊: Isij International
• 影响因子: 1.8
• 作者: K. Miura;Keisuke Miyabayashi;M. Kawanari;Ryuichi Ashida

Rapid Reduction of Iron Ore Utilizing Low-Grade Iron Ore and Low-Grade Carbonaceous Resources

利用低品位铁矿石和低品位碳质资源快速还原铁矿石

• 发表时间: 2011
• 作者: K.Yasuda;R.Ashida;E.Sasaoka;K.Miura
• 通讯作者: K.Miura

Enhancement of Reduction Rate of Iron Ore by Utilizing Iron Ore/Carbon Composite Consisting of Fine Iron Ore Particles and Highly Thermoplastic Carbon Material

• DOI: 10.2355/isijinternational.51.1227
• 发表时间: 2011
• 期刊: Isij International
• 影响因子: 1.8
• 作者: M. Kawanari;Atsushi Matsumoto;Ryuichi Ashida;K. Miura