摘要
CCUS是应对全球气候变化的关键技术,是目前实现大规模化石能源低碳化利用的首要选择,是钢铁、水泥等难减排行业低碳转型的必要技术。将氢冶金与CCUS技术相结合,不仅可以提高氢冶金的生产效率,还能够将产生的二氧化碳进行捕获、利用与封存,可以有效降低氢冶金生产过程中的碳排放。本文介绍了氢冶金结合CCUS中CO_(2)捕集工序相关工艺技术路线、原理及装备,对生产过程存在的问题及处理措施进行了梳理,结合实际生产对减碳能力进行了分析。结果表明,尾气CO_(2)平均含量4.39%,脱碳后CO_(2)平均含量0.27%,脱碳效果完成满足生产要求;按照废气量130000 m^(3)/h、CO_(2)气态密度1.977 g/L计算,小时吸收CO_(2)约10.7 t,焦炉煤气零重整的氢冶金工艺与传统高炉炼铁工艺相比,生产1 t铁减少CO_(2)排放774.9 kg,减排量达58.8%,减碳效果显著。
CCUS is the key technology to cope with global climate change,the primary choice to achieve large-scale low-carbon use of fossil energy,and the necessary technology for low-carbon transformation of industries such as steel and cement that are difficult to reduce emissions.The combination of hydrogen metallurgy and CCUS technology can not only improve the production efficiency of hydrogen metallurgy,but also capture,utilize and store the generated carbon dioxide,which can effectively reduce carbon emissions in the production process of hydrogen metallurgy.This paper introduces the technical routes,principles and equipment related to the CO_(2)capture process of hydrogen metallurgy combined with CCUS,combs the problems existing in the production process and treatment measures,and analyzes the carbon reduction capacity combined with actual production.The results show that the average CO_(2)content in tail gas is 4.39%,and the average CO_(2)content after decarbonization is 0.27%.According to the calculation of exhaust gas volume of 130000 m^(3)/h,the gas density of CO_(2)1.977 g/L,and the hourly absorption of CO_(2)is about 10.7 t.Compared with the traditional blast furnace ironmaking process,the production of iron reduces CO_(2)emission by 774.9 kg per ton.The emission reduction reached 58.8%,and the carbon reduction effect was remarkable.
作者
牛佳星
刘艳峰
李兰杰
王中华
田志强
韩星
冀宗贺
Niu Jiaxing;Liu Yanfeng;Li Lanjie;Wang Zhonghua;Tian Zhiqiang;Han Xing;Ji Zonghe(HBIS Materials Technology Research Institute,Shijiazhuang 050023,Hebei;Key Laboratory of Low Carbon Technology of Hydrogen Metallurgy in Hebei Province,Shijiazhuang 050023,Hebei;Hebei ZhangXuan High-Tech Technology Co.,Ltd.,Zhangjiakou 075100,Hebei)
出处
《河北冶金》
2025年第7期87-92,共6页
Hebei Metallurgy
基金
河北省自然科学基金资助项目(E2023318001)
河北省科技计划项目(23314601L)。
