摘要
以蜂窝陶瓷为基体,采取不同载体制备了蜂窝陶瓷负载Cu-Mn尖晶石催化剂,对比了不同载体制备的催化剂的活性。XRD结果表明以钇改性的分子筛为载体能提高活性组分的分散性,TPR结果表明钇改性的载体能有效提高催化剂的低温催化性能。其催化结果表明负载量为25%的催化剂效果最好,在所有载体中,10%钇改性的Cu-Mn/Y-ZSM-5性能最优,当空速为15000 h^-1,甲苯浓度为1000×10^-6时,300℃能将甲苯完全转化。
Honeycomb ceramics supported Cu-Mn spinel catalysts were prepared with honeycomb ceramics as the matrix,and the performance of catalysts prepared by different supports was compared. The XRD results show that the enthalpy modified molecular sieve can improve the dispersibility of the active component. The TPR results show that the cerium modified carrier can effectively improve the low temperature catalytic performance of the catalyst. The catalytic results show that the catalyst with the loading of 25% has the best effect. Among all the supports,10% yttrium modified Cu-Mn/Y-ZSM-5 has the best performance,when the space velocity is 15000 h^-1 and the toluene concentration is 1000×10^-6. At 300℃,the toluene can be completely converted.
作者
肖瑞
秦瑞香
刘世成
张春雪
刘通
王单
王金波
Xiao Rui;Qin Ruixiang;Liu Shicheng;Zhang Chunxue;Liu Tong;Wang Dan;Wang Jinbo(College of Chemistry and Chemical Engineering,Chongqing University of Science and Technology,Chongqing 401331,China)
出处
《山东化工》
CAS
2019年第15期12-14,共3页
Shandong Chemical Industry
基金
重庆市科委项目“工业挥发有机物全过程控制技术研究与集成应用示范”(cstc2018jszx-zdyfxmX0018)
重庆市科委项目“工业有机废气低温高效催化燃烧技术研发与应用”(cstc2017shmsA20005)
重庆科技学院研究生科技创新计划项目(YKJCX1720514)
关键词
蜂窝陶瓷
尖晶石
载体
甲苯
honeycomb ceramic
spinel
toluene
carrier
