复合氧化物催化剂催化氧化甲苯性能  

The properties of composite oxide catalysts for catalytic oxidation of toluene

作　　者：王晓晖[1] 张颖[1] 任海晶[1] 刘世川[1] 刘彦锋[1] 

机构地区：[1]陕西省石油化工研究设计院陕西省石油精细化学品重点实验室,陕西西安710054

出　　处：《工业催化》2015年第10期773-775,共3页Industrial Catalysis

基　　金：陕西省科技攻关项目(2013k11-06);陕西省石油化工研究设计院青年创新基金项目(2014yqcx04)

摘　　要：以γ-Al2O3为催化剂载体,铜、锰为活性组分,稀土元素铈为助催化剂,采用浸渍法制备复合氧化物催化剂5%Cu/γ-Al2O3、5%Mn/γ-Al2O3、5%Cu-5%Mn/γ-Al2O3和5%Cu-5%Mn-1.6%Ce/γ-Al2O3,并考察其催化氧化甲苯性能。研究表明,复合氧化物催化剂催化氧化甲苯具有显著的效果,5%Cu-5%Mn/γ-Al2O3催化剂和5%Cu-5%Mn-1.6%Ce/γ-Al2O3催化剂表现出良好的低温活性和催化性能,对甲苯的完全燃烧温度分别为340℃和285℃。采用SEM和BET对催化剂进行表征,结果表明,催化剂的催化活性与活性组分在催化剂表面的分散度和催化剂的孔结构相关。Using γ/-Al2O3 as catalyst carrier, copper and manganese as catalytic active component, and rare earth element cerium as co-catalyst, composite oxide catalysts 5% Cu/γ-Al2O3 ,5% Mn/γ/-Al2O3, 5% Cu-5% Mn/γ-Al2O3 and 5%Cu-5%Mn-1.6% Ce/γ/-Al2O3 were prepared by the impregnation method. Their performance for catalytic oxidation of toluene was investigated. The results showed that the composite oxide catalysts possessed significant effects of catalytic oxidation of toluene. 5 % Cu-5 % Mn/γ/-Al2O3 and 5% Cu-5% Mn-1.6% Ce/γ/-Al2O3 catalysts exhibited good activity at low-temperature and catalytic prop- erties, and their toluene complete-combustion temperatures were 340 ℃ and 285 ℃, respectively. The cat- alysts were characterized by means of SEM and BET. The results showed that the catalytic activity of the catalysts related to the dispersion of the active components on the catalyst surface and pore structure of the catalysts.

关 键 词：催化化学 复合氧化物催化剂 催化氧化 甲苯 

分 类 号：TQ426.83[化学工程] X511[环境科学与工程—环境工程]