高焦混合煤气重整制备高品质高炉喷吹还原气研究  

Investigation on preparation of high quality reduced gas for blast furnace by mixed reforming of BFG and COG

作　　者：王兴 赵伟[1] 冉泽洲 Wang Xing;Zhao Wei;Ran Zezhou(Digital Intelligence Development,Ansteel Co.,Ltd.;National Frontiers Science Center for Industrial Intelligence and Systems Optimization,Northeastern University)

机构地区：[1]鞍钢股份有限公司数智发展部 [2]东北大学工业智能与系统优化国家级前沿科学中心

出　　处：《冶金能源》2024年第1期19-24,共6页Energy For Metallurgical Industry

基　　金：国家自然科学基金资助项目(72192830,72192831)。

摘　　要：文章从热力学角度对甲烷—二氧化碳重整过程进行了探究,分析了涉及相关化学反应的吉布斯自由能变及化学平衡常数。研究了温度、压力、进料配比、水蒸气的加入量对CH_(4)转化率、CO_(2)转化率、积碳率的影响。结果表明:随着温度升高,CH_(4)与CO_(2)转化率增加,积碳率减少;随着压力增加,CH_(4)与CO_(2)转化率降低,积碳率增加;加入一定量的水蒸气可降低积碳率,此时CH_(4)与CO_(2)转化率仍然很高。重整过程的最佳反应条件为900℃、105 Pa、n(CH_(4))∶n(CO_(2))∶n(H 2O(g))=1∶1∶0.7,此时CH_(4)转化率为99%,CO_(2)转化率为96%,积碳率为0%。The paper analyzed the reforming reaction of CH_(4)and CO_(2)from a thermodynamic perspective.The Gibbs free energy changes and chemical equilibrium constants of the relevant reactions were analyzed.The effects of temperature,pressure,feed ratio,and amount of steam added on CH_(4)conversion,CO_(2)conversion,and carbon deposition were further analyzed.The results show that increasing temperature can increase the conversion of CH_(4)and CO_(2),while the carbon deposition rate decreases.As the pressure increases,the conversion rate of CH_(4)and CO_(2)decreases,and the carbon deposition rate increases.Adding a certain amount of water vapor can reduce the carbon deposition rate and the conversion rates of CH_(4)and CO_(2)are still high.The optimal reaction conditions are 900℃,105 Pa,n(CH_(4))∶n(CO_(2))∶n(H 2O(g))=1∶1∶0.7,at which condition,the CH_(4)conversion is 99%,the CO_(2)conversion is 96%,and the carbon deposition is 0%.

关 键 词：高炉煤气 焦炉煤气 混合重整 碳减排 还原气 

分 类 号：TF53[冶金工程—钢铁冶金]