Shaft Furnace Direct Reduction Technology - Midrex and Energiron
Shaft Furnace Direct Reduction Technology - Midrex and Energiron
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DOI：
10.4028/www.scientific.net/amr.805-806.654
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发表时间：
2013-09
期刊：
影响因子：
--
通讯作者：
Xin Jiang;Lin Wang;F. Shen
中科院分区：
文献类型：
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作者：
Xin Jiang;Lin Wang;F. Shen
焦炭是炼铁成本的主要组成部分，其生产造成了严重的环境问题。因此，低能耗、低CO2排放和废物回收利用正在推动钢铁行业开发替代或无焦炼铁工艺。Midrex和HYL Energiron是竖炉直接还原的领先技术，约占全球产量的76%。它们是获得用于炼钢的高质量直接还原铁（DRI）的最有竞争力的方法。因此，在本文中，这两个过程的一些详细信息。对工艺方案、原料、直接还原铁产品、热回收、转化气、热排放和热输送、副产品排放等方面的问题进行了重点研究。无论是在天然气资源丰富的县还是在天然气资源贫乏的县，直接还原开发都是非常重要的。
Coke constitutes the major portion of ironmaking cost and its production causes the severe environmental concerns. So lower energy consumption, lower CO2 emission and waste recycling are driving the iron and steel industry to develop alternative, or coke-free, ironmaking process. Midrex and HYL Energiron are the leading technologies in shaft furnace direct reduction, and they account for about 76% of worldwide production. They are the most competitive ways to obtain high quality direct reduced iron (DRI) for steelmaking. Therefore, in the present paper, some detailed information about these two processes are given. Much attention has been paid on process scheme, the feedstock, DRI product, heat recovery, reforming gas, hot discharge and transportation, and by-product emission. Its very important for direct reduction development in both natural gas-rich counties and natural gas-poor counties.