Current development status of hydrogen reduction technology with the CH4-H2 system
Under the dual challenges posed by the"dual carbon"goals and"double high"restrictions,the field of pyrometallurgy is experiencing significant pressures related to energy consumption and car-bon emissions,thereby heightening the urgent need for clean energy.Hydrogen energy,as a renewable clean energy source,offers a new dawn for pyrometallurgy in terms of energy-saving,low-carbon,and green transformation.Hydrogen reduction technology based on the CH4-H2 system,with its excellent re-duction capability and low-carbon,pollution-free characteristics,has emerged as a research hotspot in the metallurgical field.This paper elucidates the reduction thermodynamics and kinetics principles of the CH4-H2 system,systematically reviews the relevant domestic and international technologies and re-search progress,summarizes the research achievements and development directions of this technology in the reduction of metallic minerals(iron,titanium,nickel,zinc,cobalt,chromium,and manganese),and conducts a systematic analysis of the unresolved issues.The hydrogen reduction technology based on the CH4-H2 system holds immense application potential,and these discussions will contribute to ad-vancing the further development of this technology.
metallic mineralpyrometallurgyhydrogen reduction technologyCH4-H2 system
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