气基直接还原铁还原气生产技术研究  

Study of Production Technology of Reducing Gas for Gas-based Direct Reduced Iron Process

作　　者：刘西琨 金锋 付艳鹏 陈树华 程立 林青林 余长春[2] Liu Xikun;Jin Feng;Fu Yanpeng;Chen Shuhua;Cheng Li;Lin Qinglin;Yu Changchun(Sinosteel Engineering&Technology Co.,Ltd.,Beijing 100080;China University of Petroleum(Beijing),College of New Energy and Materials,Beijing 102249,China)

机构地区：[1]中钢设备有限公司低碳冶金与能源工程部,北京海淀100080 [2]中国石油大学(北京)新能源与材料学院,北京昌平102249

出　　处：《山西冶金》2023年第8期109-112,共4页Shanxi Metallurgy

摘　　要：从原料组成和物料平衡分析和模拟计算了以各种含甲烷工业气体和不同品质煤炭为原料制取高品质气基直接还原铁还原气的可行性。结合工业实践数据的分析表明,无论是富氢的含甲烷原料气,还是富碳的沼气,都可以经干重整或双重整一步直接转化制得竖炉工艺所需的直接还原铁还原气。以不同煤阶的煤炭为原料,采用氧气气化,同时必须采用补氢或水气变换进行原料气组成的调节和相应的预处理,才能满足竖炉工艺直接还原铁对还原气的要求。Based on the analysis and simulation of raw material composition and material balance,the feasibility of producing high quality reducing gas for direct reduced iron(DRI)process from various methane-containing industrial gases and coal of different quality has been calculated.Combined with the industrial data,it is shown that the DRI reducing gas for shaft furnace process can be obtained directly by either hydrogen-rich methane-containing raw gas or carbon-rich methane gas through dry reforming or bi-reforming.In order to meet the requirement of DRI reducing gas in shaft furnace process,oxygen gasification of coal with different coal rank requires adjustment of raw gas composition and corresponding pretreatment by hydrogen supplementation or water-gas shift reaction.

关 键 词：干重整 双重整 还原气 煤炭 含甲烷气体 气基直接还原铁 

分 类 号：TF554[冶金工程—钢铁冶金]