石油化工2025，Vol.54Issue(9)：1229-1234,6.DOI:10.3969/j.issn.1000-8144.2025.09.001
Pd/SiC催化二苯乙炔选择性加氢
Catalytic performance of Pd/SiC for selective hydrogenation of diphenylacetylene
宋彩东 1李佳航 1郭慧慧 1赵吉晓 1焦志锋 1郭向云1
作者信息
- 1. 常州大学 石油化工学院,江苏 常州 213164
- 折叠
摘要
Abstract
The Pd/SiC catalyst with Pd loading of 1%(w)was prepared by the liquid phase reduction method with the high specific surface area SiC as the support,the catalyst was characterized by the methods of XRD,FTIR,TEM,GC-MS,XPS,and ICP,and the performance and reaction mechanism of Pd/SiC catalyzing the selective hydrogenation of diphenylacetylene(DPA)were investigated.The experimental results show that the Pd/SiC catalyst can efficiently catalyze the stereoselective hydrogenation of DPA to obtain cis-diphenylene.During the reaction,H2 is adsorbed and dissociated on the surface of Pd particles,and DPA is adsorbed and activated on the surface of SiC.Then the active hydrogen on the Pd surface spills over onto the surface of SiC and reacts with DPA absorbed on SiC.In mild conditions(40℃,0.1 MPa H2),the selectivity of semi-hydrogenation can reach 98%under the conversion of 95%,with the cis-diphenylene selectivity of 98%.关键词
二苯乙炔半加氢/Pd/SiC催化剂/立体选择性/氢溢流Key words
semi-hydrogenation of diphenylacetylene/Pd/SiC catalyst/stereoselectivity/hydrogen spillover分类
化学化工引用本文复制引用
宋彩东,李佳航,郭慧慧,赵吉晓,焦志锋,郭向云..Pd/SiC催化二苯乙炔选择性加氢[J].石油化工,2025,54(9):1229-1234,6.
