【作者】 柴锡翠； 岳强； 张钰洁； 王琦；

【Author】 Chai Xicui;Yue Qiang;Zhang Yujie;Wang Qi;School of Metallurgy, Northeastern University;State Environmental Protection Key Laboratory of Eco-Industry;

【机构】 东北大学冶金学院； 国家环境保护生态工业重点实验室；

【摘要】 随着全球钢铁行业的快速发展,低碳生产已成为钢铁行业新的竞争力。在我国"碳达峰碳中和"背景下,氢冶金是高碳排放的钢铁行业实现低碳绿色转型升级的有效途径。氢冶金是利用氢代替碳作为还原剂,减少二氧化碳排放的一种新技术,使用氢能可有利地促进钢铁工业的绿色可持续发展。本文一方面对现阶段国内外氢冶金的研究现状进行系统综述,另一方面根据能量守恒定律,分析气基直接还原竖炉的理论能耗情况,结果表明:采用全氢还原时,最佳还原温度控制在1223K～1273K时理论能耗较低。本文提出了为开发低能耗气基直接还原竖炉课题的展望,并指出钢铁工业为进一步达到节能减排的目标,氢冶金将有更广阔的发展前景。更多还原

【Abstract】 With the rapid development of the global iron and steel industry, low-carbon production has become a new competitiveness of iron and steel industry. Under the background of "carbon peak carbon neutral" in China, hydrogen metallurgy is an effective way to achieve low-carbon green transformation and upgrading of iron and steel industry with high carbon emission.Hydrogen metallurgy is a new technology that applies hydrogen instead of carbon as a reducing agent to reduce CO₂ emissions,and the use of hydrogen is beneficial to promoting the sustainable development of iron and steel industry. In this paper, on the one hand, the research status of hydrogen metallurgy at home and abroad is systematically reviewed. On the other hand, the theoretical energy consumption of gas based direct reduction shaft furnace is analyzed according to the law of conservation of energy. The results show that 100% hydrogen reduction is adopted, the theoretical energy consumption is the lowest when the optimal reduction temperature is controlled between 1223 K and 1273 K. And the prospect of developing the project of low energy consumption gas based direct reduction shaft furnace is put forward, and it points out that hydrogen metallurgy will have a broader development prospect in order to further achieve the goal of energy-saving and emission-reducing in the iron and steel industry.更多还原