煤化工技术在钢铁行业的发展与应用

从钢铁行业的转炉煤气、焦炉煤气生产甲醇出发,总结了部分煤化工技术在钢铁领域的发展和应用。具体分析了固定床煤制气与气基法直接还原铁工艺、煤制气流化床与FINEX熔融还原铁技术、固定床与流化床结合的COREX熔融还原炼铁工艺、粗煤气余热冶炼直接还原铁工艺等,指出借助煤化工技术,可以提高能源利用效率,推动钢铁工业清洁生产。

The Development and Application of Coal Chemical Technology in the Iron and Steel Industry

The application of coal chemical technology in the iron and steel industry can achieve efficient and high value added utilization of the hydrocarbon resources, for instance, recycling the hydrocarbon resources from the coke oven, the blast furnace and converter to produce chemical products; the technology of coal-to-reducing gas has been applied in the non-blast furnace ironmaking, which is used for reducing iron or that which can produce direct reduction iron or molten iron. The author summarizes on the basis of the long-term study that the reducing gas produced from coal for ironmaking can replace part of the blast furnace gas and the chemical products produced therefrom by adopting the coal chemical technology can improve energy efficiency and implement clean production in the iron and steel industry.