Research progress in low carbon smelting technology of blast furnace gas cycle coupling carbon capture
Journal Title: Energy Environmental Protection - Year 2023, Vol 37, Issue 3
Abstract
The iron and steel industry ranks first in terms of carbon emissions in the industrial sector. The blast furnace process has the highest carbon emissions, which is the carbon emission reduction bottleneck of the steel industry. The blast furnace gas circulation coupled with carbon capture technology is an important way to achieve carbon emission reduction in blast furnace, which can realize the resource utilization of top gas while reducing carbon emissions and achieve the purpose of energy saving and emission reduction. The impact of gas circulation coupled with carbon capture on blast furnace smelting is introduced, and the oxygen-rich blast furnace smelting process with gas circulation as the main feature is presented. The article reviews the mature chemical absorption method and variable pressure adsorption method of blast furnace carbon capture technology in industrial applications, and points out that coupling gas circulation and carbon capture is more beneficial to blast furnace smelting. In the developed gas cycle coupled carbon capture application, the coupling of the two technologies can reduce the blast furnace carbon emission by 20%~40%. Future research should focus on the change of reaction mechanism in the blast furnace during the gas cycle, and the development of low-energy carbon capture materials applicable to blast furnace gas. It is also great significance to actively promoting the industrial application of this technology.
Authors and Affiliations
XU Wenqing|Institute of Process Engineering, Chinese Academy of Science, China, FU Le|Institute of Process Engineering, Chinese Academy of Science, China, North China Electric Power University, China, YANG Yang|Institute of Process Engineering, Chinese Academy of Science, China, TIAN Qinlin|Institute of Process Engineering, Chinese Academy of Science, China, North China Electric Power University, China, LI Chaoqun|Institute of Process Engineering, Chinese Academy of Science, China, WANG Yixi|Institute of Process Engineering, Chinese Academy of Science, China, ZHU Tingyu|Institute of Process Engineering, Chinese Academy of Science, China, HAO Runlong*|North China Electric Power University, China
Keywords
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- EP ID EP737962
- DOI 10.20078/j.eep.20230302
- Views 32
- Downloads 0
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