高炉煤气循环耦合碳捕集低碳冶炼技术研究进展  

Research progress in low carbon smelting technology of blast furnace gas cycle coupling carbon capture

作　　者：徐文青[1] 符乐 杨阳[1] 田沁霖 李超群[1] 王艺晰 朱廷钰[1] 郝润龙[2] XU Wenqing;FU Le;YANG Yang;TIAN Qinlin;LI Chaoqun;WANG Yixi;ZHU Tingyu;HAO Runlong(Institute of Process Engineering,Chinese Academy of Science,Beijing 100190,China;North China Electric Power University,Baoding 071000,China)

机构地区：[1]中国科学院过程工程研究所,北京100190 [2]华北电力大学,河北保定071000

出　　处：《能源环境保护》2023年第3期175-184,共10页Energy Environmental Protection

基　　金：国家重点研发计划项目(2022YFE0208100);国家自然科学基金项目(51978262,52100133,52222005)。

摘　　要：钢铁行业碳排放位列工业行业首位,其中高炉工序碳排放量最高,是钢铁行业碳减排卡脖子环节。高炉煤气循环耦合碳捕集是高炉实现碳减排的重要途径,在减少碳排放的同时,能够实现炉顶煤气的资源化利用,达到节能减排的目的。文章综述了煤气循环耦合碳捕集对高炉冶炼的影响,介绍了以煤气循环为主要特点的富氧高炉冶炼工艺,综述了高炉碳捕集技术在工业应用成熟的化学吸收法和变压吸附法,指出将煤气循环和碳捕集耦合更有利于高炉冶炼。在已发展的煤气循环耦合碳捕集应用中,两种技术耦合可使高炉碳排放降低20%~40%。未来的研究应关注煤气循环过程中高炉内反应机理变化,和适用于高炉煤气的低能耗碳捕集材料开发,并积极推进该技术在工业上的应用。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.

关 键 词：钢铁行业 炉顶煤气循环 氧气高炉 碳捕集技术 碳减排 低碳炼铁 

分 类 号：X701[环境科学与工程—环境工程]