A Novel Method of Recycling CO_2 for Slag Splashing in Converter  

作　　者：ZHAO Hong-xin YUAN Zhang-fu WANG Wen jing PAN Yi-fang LI Shu-qing 

机构地区：[1]State Key I.aboratory of Multiphase and Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China [2]College of Engineering, Peking University, Beijing 100871, China [3]Graduate University, Chinese Academy of Sciences, Beijing 100049, China [4]Tianjin Iron and Steel Group Co Ltd, Tianjin 300301, China

出　　处：《Journal of Iron and Steel Research International》2010年第12期11-16,共6页

基　　金：Sponsored by Science and Technology Plan Projects of Tianjin of China(07ZCKFGX03800);Science and Technology Plan Projects for CAS Supporting Tianjin Construction of China(TJZX1-YW-09)

摘　　要：Converter off-gas, an important energy resource for steel industries, is one of the weak points in the recov ery and utilization of secondary energy resources. To improve the level of recycling converter off-gas in steel plants, a novel approach to the recycle of CO2 separated from converter off-gas or other off-gas for the green slag splashing technique was developed, and the CO2 equilibrium conversion ratio of the green CO2 slag splashing under different technological conditions was calculated by the program of enthalpy （H）, entropy （S）, and heat capacity （C）, i.e. HSC software. Furthermore, the experiments of CO2 injected into molten converter slag were carried out, and the influencing factors of the green slag splashing technique using CO2 were analyzed. The experimental results showed that the carbon content for smooth slag splashing using COs was about 4.0%.Converter off-gas, an important energy resource for steel industries, is one of the weak points in the recov ery and utilization of secondary energy resources. To improve the level of recycling converter off-gas in steel plants, a novel approach to the recycle of CO2 separated from converter off-gas or other off-gas for the green slag splashing technique was developed, and the CO2 equilibrium conversion ratio of the green CO2 slag splashing under different technological conditions was calculated by the program of enthalpy （H）, entropy （S）, and heat capacity （C）, i.e. HSC software. Furthermore, the experiments of CO2 injected into molten converter slag were carried out, and the influencing factors of the green slag splashing technique using CO2 were analyzed. The experimental results showed that the carbon content for smooth slag splashing using COs was about 4.0%.

关 键 词：converter slag converter off-gas slag splashing CO2 

分 类 号：TQ085[化学工程] O6-3[理学—化学]