负载型铁铬催化剂同时脱硫脱硝性能  

Simultaneous Desulfurization and Denitrification Performance of Supported Iron-Chromium Catalyst

作　　者：庞子涛 徐庆生 宋永吉 王新承 李翠清 王虹 PANG Zitao;XU Qingsheng;SONG Yongji;WANG Xincheng;LI Cuiqing;WANG Hong(Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology,College of Chemical Engineering,Beijing Institute of Petrochemical Technology,Beijing 102617,China;College of Environmental and Energy Engineering,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京石油化工学院化学工程学院,燃料清洁化及高效催化减排技术北京市重点实验室,北京102617 [2]北京工业大学环境与能源工程学院,北京100124

出　　处：《环境科学与技术》2019年第12期112-117,共6页Environmental Science & Technology

基　　金：国家自然科学基金项目(20176012,21076025)。

摘　　要：文章以CO为还原剂,H-β为催化剂载体,采用等体积浸渍法制备了一系列8Fex M/H-β(M=Mn、Cr、Co、Ni,x=0、2、4、8、12)催化剂样品,并在微型固定床反应器上探讨催化剂同时脱硫脱硝活性,通过XRD、BET、H2-TPR、SEM对催化剂进行了表征。结果表明:8Fe4Cr/H-β催化剂的活性最佳,脱硫脱硝转化率同时达到90%时的温度为319℃左右。8Fe4Cr/H-β催化剂上活性组分高度分散,Fe和Cr之间发生了相互作用,催化剂的低温还原性能得到改善。A series of 8 Fex M/H-β(M=Mn,Cr,Co,Ni,x=0,2,4,8,12)catalyst samples were prepared by using CO as the reducing agent and H-βas the catalyst carrier.The simultaneous desulfurization and denitrification activity of the catalyst was investigated on a micro fixed bed reactor.The catalyst was characterized by XRD,BET,H2-TPR and SEM.The results show that the activity of 8Fe4Cr/H-βcatalyst was the best,and the temperature was 319℃when the simultaneous desulfurization and denitrification conversion rate reached 90%.The active components were highly dispersed on the 8Fe4Cr/H-βcatalyst,and Fe interacted with Cr,and the low-temperature reduction performance of the catalyst was improved.

关 键 词：脱硫脱硝 催化还原 8Fe4Cr/H-β催化剂 

分 类 号：X511[环境科学与工程—环境工程] O463.36[机械工程—光学工程]