Abstract：Under the background of the new development about "carbon peak and carbon neutrality", the low carbon development of steel industry is becoming particularly important.The research status of low-carbon cycle and carbon reduction fields in the iron and steel industry, as well as the developing states of the new types of CO2 resource utilization industry are analyzed.From the point of the iron and steel production process status, which is comparatively mature around the world, the carbon emission intensity of "BF-BOF""Total Scrap-EAF""Direct Reduction " and "Smelting Reduction" are introduced. Currently,the major global iron and steel manufacturing processes are the BF-BOF process and EAF poreces. The BF-BOF process carbon emission intensity of per ton is about 3 times of that of the EAF process. Combining with the evolution of global steel production, the values of CO2 emissions of the global steel industry from 2001 to 2022 is calculated, which expounds the urgency and necessity situation of carbon reduction and CO2 resource utilization.According to the present experience of carbon reduction in the steel industry,the low-carbon smelting projects of Japan, European and China are analyzed, including the experimental exploration and stage development targets during the period of carbon reduction. On the basis of carbon reduction of the iron and steel industry, promoting the resource utilization becomes an important task to achieve carbon neutrality in the steel industry. The research status and characteristics of carbon capture and sequestration technologies in iron and steel enterprises are expounded. Meanwhile, the current effective methods to facilitate the utilization of CO2 resources in the iron and steel industry systematically are summarized, which include the use of different modes of CO2 injection process in the steel-making converter and refining process, as well as the research of CO2 utilization of basic chemicals in the co-production of steel and chemical field.Considering from the perspective of the whole iron and steel industry chain, the key planning and development direction of carbon emission reduction and recycling industry in Japan, Europe and China are put forward.
刘清梅, 张福明. 钢铁工业减碳与CO2资源化利用技术的研究进展[J]. 钢铁, 2024, 59(2): 13-24.
LIU Qingmei, ZHANG Fuming. Research progress of carbon reduction and CO2 resource technology utilization in iron and steel industry[J]. Iron and Steel, 2024, 59(2): 13-24.
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2024, Vol. 59 
