制备条件对脱硝脱二噁英V2O5-CeO_(2)/TiO_(2)催化剂协同性能的影响  

Effect of Preparation Conditions on the Synergistic Performance of V_(2)O_(5)-CeO_(2)/TiO_(2) Catalysts for Denitrification and Dioxin Removal

作　　者：许晓龙 童翠香 蔡佳凤 王光应 XU Xiao-long;TONG Cui-xiang;CAI Jia-feng;WANG Guang-ying(Anhui Yuanchen Environmental Protection Technology Co.Ltd.,Hefei 230011,China)

机构地区：[1]安徽元琛环保科技股份有限公司,安徽合肥230011

出　　处：《安徽化工》2024年第1期51-53,61,共4页Anhui Chemical Industry

基　　金：安徽省科技重大专项项目(项目编号:201903a070200004)。

摘　　要：采用等体积浸渍的方法制备V2O5-CeO_(2)/TiO_(2)催化剂,考查了V2O_(5)/CeO_(2)比、负载顺序、焙烧温度、反应空速对催化剂协同脱硝脱二噁英性能的影响。结果表明,所制备的催化剂活性组分在载体表面分散均匀。采用共同浸渍法制备,V2O_(5)/CeO_(2)质量比为1∶3,焙烧温度为550℃的催化剂协同脱硝脱二氯苯性能最佳,在200℃反应温度下脱硝率为93%,二氯苯的脱除率达到90%。The V_(2)O_(5)-CeO_(2)/TiO_(2) catalyst was prepared by the constant volume impregnation method.The effects of the differ⁃ent preparation conditions(V_(2)O_(5)-CeO_(2) ratio,supporting sequence,calcination temperature and GHSV)on the synergistic denitrification and dioxin removal performance of the catalyst were investigated.The results showed that the catalysts were uniformly dispersed on the surface of the support.Using the co-impregnation method,the catalyst with the V_(2)O_(5)/CeO_(2) mass ratio of 1∶3 and the calcination temperature of 550℃has a better performance of synergistic denitrification of dichloroben⁃zene.The denitrification rate was 93%and the removal rate of dichlorobenzene reached 90%at 200℃.

关 键 词：脱硝 脱二噁英 钒铈钛催化剂 

分 类 号：X511[环境科学与工程—环境工程]