文献类型：期刊文献

英文题名：Metal-reinforced sulfonic-acid-modified zirconia for the removal of trace olefins from aromatics

作者：Kong, Decun[1];Peng, Qian[1];Shi, Li[1];Wang, Xin[1];Meng, Xuan[1];Hu, Xiude[2];Liu, Naiwang[1]

机构：[1]East China Univ Sci & Technol, Int Joint Res Ctr Green Energy Chem Engn, Shanghai 200237, Peoples R China;[2]Ningxia Univ, State Key Lab High Efficiency Utilizat Coal & Gre, Yinchuan, Ningxia, Peoples R China

年份：2020

卷号：67

期号：9

起止页码：1644

外文期刊名：JOURNAL OF THE CHINESE CHEMICAL SOCIETY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000527057600001)】；

基金：China Postdoctoral Science Foundation, Grant/Award Number: NO.2017M621389; Explore and Research Foundation for Youth Scholars of Ministry of Education of China, Grant/Award Number: NO. 222201814011; National Natural Science Foundation of China, Grant/Award Number: NO.21808054; Open Project Program of State Key Laboratory of Highefficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Grant/Award Number: 2020-KF-38; Science and Technology Commission of Shanghai Municipality, Grant/Award Number: Sailing Program 18YF1406300

语种：英文

外文关键词：alkylation; bronsted acid; catalysis; sulfated zirconia

摘要：Metal-reinforced sulfonic-acid-modified zirconia catalysts were successfully prepared and used to remove trace olefins from aromatics in a fixed-bed reactor. Catalysts were characterized by ICP-OES, N-2 adsorption-desorption, X-ray diffraction, thermogravimetric analysis (TGA), and pyridine-FTIR spectroscopy. Different metals and calcination temperatures had great influence on the catalytic activity. Alumina-reinforced sulfated zirconia exhibited outstanding catalytic performance, stable regeneration activity, and giant surface area, and are promising in industrial catalysis. TGA showed that the decomposition of methyl could be attributed to Bronsted acid sites, and pyridine-FTIR spectroscopy proved the weak Bronsted sites on these synthesized metal-reinforced sulfated zirconia. Also, a relation between the reaction rate and weak Bronsted acid density is proposed.