3V5Mn5Ce/TiO_2催化剂SCR脱硝反应动力学研究  

Kinetics study of the Selective Catalytic Reduction of NO on 3V5Mn5Ce/TiO_2 catalyst

作　　者：邹鹏[1] 熊志波[1] 周飞[1] 韩奎华[1] 

机构地区：[1]山东大学燃煤污染物减排国家工程实验室,山东济南250061

出　　处：《电力科技与环保》2013年第1期10-12,共3页Electric Power Technology and Environmental Protection

摘　　要：采用微波干燥法制备了3V5Mn5Ce/TiO2催化剂,考察了催化剂的脱硝活性及内外扩散对脱硝反应的影响,通过计算得出反应速率常数和反应活化能。结果表明:催化剂粒径小于0.38mm,空速不大于30000h-1时,内外扩散的影响可忽略不计;3V5Mn5Ce/TiO2催化剂的SCR反应为一级反应,反应速率常数为5.11L/(g.min),活化能为50.94 kJ/mol。SCR catalysts of 3VSMnSCe/TiO2 were prepared by microwave drying. The effects on reaction of inter- nal and external diffusion and catalytic activity were studied. Reaction rate constant and activation energy were calculated. The results showed that effects of internal and external diffusion could be neglected, when particle size was less than 0.38mm and space velocity was not more than 30000 h I;SCR reaction on 3VSMnSCe/TiO, was first -order reaction, reaction rate constant was 5.1! L/（ g · min ） and activation energy was 50.94 kJ/mol.

关 键 词：催化剂 SCR 脱硝 动力学 3V5Mn5Ce/TiO2 

分 类 号：X701.7[环境科学与工程—环境工程]