The basic flow of Midrex and HYL/Energiron technologies for direct reduction in a shaft furnace and the direct reduced iron output by each processing technique in recent years are firstly introduced,and then the equipment,raw materials and process characteristics of those two technologies are analyzed based on comparison.Based on the expounding of technical R & D and investment of global steel companies in these two technologies,it is pointed out that the development of hydrogen-based direct reduction process in a shaft furnace is closely related to grade of pellet ore,heat adsorption during hydrogen-based reduction reaction process,technologies for large-scale green hydrogen production and production cost among others.It is important for sustainable development of Chinese iron and steel industry to adopt hydrogen-based direct reduction in a shaft furnace that conforms to the national conditions.
关键词
炼铁/氢基直接还原/竖炉/低碳减排/氢能源/绿氢/Midrex/HYL
Key words
ironmaking/hydrogen-based direct reduction/shaft furnace/carbon emissions reduction/hydrogen energy/green hydrogen/Midrex/HYL
维普
万方数据