摘要
等离子体氢因其化学活性的优势,迅速成为氢冶金领域的研究热点。目前等离子体氢还原铁氧化物的基础理论研究仍不完善,主要缺少对其微观机理、杂质元素迁移规律等方面的研究。通过对等离子体氢还原铁氧化物的相关研究进行回顾,从热等离子体氢的还原入手,再到冷等离子体氢的还原,对国内外等离子体氢还原铁氧化物的研究方法进行概括,并对等离子体的还原机理和应用进展进行详细分析。结果表明,与氢气还原铁氧化物相比,热等离子体氢和冷等离子体氢在还原过程中更具热力学和动力学优势,并且由于体系中有较高浓度的振动激发分子氢,冷等离子体氢被认为拥有更大的发展潜力。研究结果为后续学者的试验设计提供参考,并为其研究方向提供建议。
Plasma hydrogen is becoming a research hotspot in the field of hydrogen metallurgy because of its chemical activity.However,the basic theoretical research for plasma hydrogen reduction of iron oxide is still not intensive,mainly lacking the study of its microscopic mechanism,impurity element migration law and other aspects.By reviewing the related research on the reduction of iron oxides by plasma hydrogen,starting from the reduction of thermal plasma hydrogen,and then to the reduction of non-thermal plasma hydrogen,the research methods of plasma hydrogen reduction of iron oxides at home and abroad are summarized,and the mechanism and application progress of plasma reduction are analyzed in detail.The results show that thermal plasma hydrogen and non-thermal plasma hydrogen have more thermodynamic and kinetic advantages in iron oxide reduction than hydrogen.Moreover,due to the high concentration of vibrational excited molecular hydrogen in the system,non-thermal plasma hydrogen is considered to have greater development potential.The research results provide references for the experimental design of follow-up scholars and suggestions for their research directions.
作者
宋晓然
刘征建
张建良
宗燕兵
王耀祖
SONG Xiao-ran;LIU Zheng-jian;ZHANG Jian-liang;ZONG Yan-bing;WANG Yao-zu(School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;Institute of Artificial Intelligence,University of Science and Technology Beijing,Beijing 100083,China)
出处
《中国冶金》
CAS
北大核心
2022年第12期7-14,共8页
China Metallurgy
基金
国家自然科学基金面上项目资助项目(52174291)
北京市科技新星项目(Z211100002121115)
博士后面上基金资助项目(2021M690369)
中央高校基金科研业务费资助项目(06500170)。
关键词
炼铁
氢冶金
等离子体氢
还原
非高炉炼铁
ironmaking
hydrogen metallurgy
plasma hydrogen
reduction
non-BF ironmaking
