Development Status of Hydrogen-Based Direct Reduction Process in Shaft Furnace and Related Thoughts
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.
ironmakinghydrogen-based direct reductionshaft furnacecarbon emissions reductionhydrogen energygreen hydrogenMidrexHYL