Preparation of fly ash supported cobalt oxide catalyst and its catalytic performance in combustion of toluene
LIU Shu-sen1,2, REN Jun2, YAN Xiang-hui3, TAO Li-ge1, HOU Ze-jian1
1. Lignite Fly Ash Institute of Engineering & Technology, Xilingol Vocational College, Xilinhot 026000, China; 2. Research Institute of Coal Chemical, Taiyuan University of Technology, Taiyuan 030024, China; 3. College of Materials Science and Engineering, North Minzu University, Yinchuan 750021, China
Abstract: Fly ash (FA),a solid waste generated in thermal power plant,is used as the catalyst support for the preparation of CoOx/FA catalyst via the solid grinding method and high temperature treatment.The prepared CoOx/FA exhibits good activity in the catalytic combustion of toluene.Fly ash treated by acid and salt are used as comparative supports.The catalytic performance of CoOx/FA is tested through catalytic combustion of toluene.The catalysts are characterized by XRD,nitrogen adsorption and desorption test,H2-TPR,O2-TPD and SEM.The structure-property relationship for CoOx/FA in catalytic combustion of toluene is established.The conclusion is that fly ash structure has a significant effect on the activity of the supported CoOx,CoOx with weak interaction is the active site of the reaction,and the proper oxygen adsorption capacity is the basis of the catalyst activity.
刘树森, 任军, 严祥辉, 陶力格, 侯泽健. 粉煤灰负载钴氧化物催化剂的制备及其甲苯催化燃烧性能[J]. 现代化工, 2019, 39(3): 139-144.
LIU Shu-sen, REN Jun, YAN Xiang-hui, TAO Li-ge, HOU Ze-jian. Preparation of fly ash supported cobalt oxide catalyst and its catalytic performance in combustion of toluene. Modern Chemical Industry, 2019, 39(3): 139-144.
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