Catalytic Combustion of Toluene with Pd/La0.8Ce0.2MnO3 Supported on Different Zeolites

被引:16
作者
Wang, Yongqiang [1 ,2 ]
Xiao, Li [1 ]
Zhao, Chaocheng [1 ,2 ]
Liu, Fang [1 ,2 ]
Li, Shi [1 ]
机构
[1] China Univ Petr East China, Dept Environm & Safety Engn, Coll Chem Engn, Qingdao 266580, Peoples R China
[2] China Univ Petr East China, State Key Lab Petr Pollut Control, Dongying 257061, Peoples R China
基金
中国国家自然科学基金;
关键词
catalytic combustion; zeolite; perovskite; support effect; toluene; VOLATILE ORGANIC-COMPOUNDS; MANGANESE OXIDE; OXIDATION; PALLADIUM; PERFORMANCE; HYDROGEN; METHANOL; BENZENE; VOCS; PD;
D O I
10.1002/ep.12656
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Pd/La0.8Ce0.2MnO3 catalysts supported on various kinds of zeolites (ZSM-5, MOR, NaY, and beta) were prepared by incipient wetness impregnation method, and these catalysts were investigated by Brunauer-Emmett-Teller, X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy, and H-2-temperature programmed reduction. The catalytic activity of these catalysts was tested for toluene catalytic combustion, and the support effect was investigated. It was found that the ZSM-5 is the best support than other zeolites (MOR, NaY, and ), because it processes the higher acidity and reducibility, although its specific surface area is smaller than the others. Result of XRD indicates that Pd species are highly dispersed on the surface of the catalysts, and the doping of Pd could greatly improve the activity of La0.8Ce0.2MnO3, the light-off and complete conversion temperature of Pd/La0.8Ce0.2MnO3/ZSM-5 are only 112 and 227 degrees C, respectively. (c) 2017 American Institute of Chemical Engineers
引用
收藏
页码:215 / 220
页数:6
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