石油化工2025，Vol.54Issue(7)：909-916,8.DOI:10.3969/j.issn.1000-8144.2025.07.001
油氨柱Al2O3载体制备及乙炔加氢催化剂性能
Preparation of oil-ammonia column Al2O3 support and performance of acetylene hydrogenation catalyst
许洪 1王海燕 1车春霞 2韩伟2
作者信息
- 1. 兰州理工大学 材料科学与工程学院,甘肃 兰州 730050
- 2. 中国石油 石油化工研究院 兰州化工研究中心,甘肃 兰州 730060
- 折叠
摘要
Abstract
The effect of the PdAg/Al2O3 catalyst on the selective hydrogenation performance of acetylene was studied using the dropping ball molding of the oil-ammonia column method,and the PdAg/Al2O3 catalyst was prepared by loading Pd and Ag components onto an oil-ammonia column Al2O3 support using the equal volume impregnation method.Furthermore,the effect of calcination temperature of oil-ammonia column Al2O3 supports on the selective hydrogenation performance of PdAg/Al2O3 catalysts for acetylene was investigated.XRD,N2 adsorption-desorption,NH3-TPD,H2-TPR,and TEM were used to characterize the support and catalyst.The results show that the physical parameters of the oil-ammonia column Al2O3 support change after treatment at different calcination temperatures.With the increase in the calcination temperature,the amount of acid on the surface of the support decreases,accompanied by a decrease in catalyst activity and an increase in selectivity.The catalyst prepared using oil-ammonia column Al2O3 support calcined at 1 300℃demonstrates the optimal performance.Under certain reaction conditions,the acetylene conversion is 95.41%,with an ethylene selectivity of 91.19%and a conversion of 55.09%for the propylene and propadiene mix.关键词
油氨柱Al2O3载体/焙烧温度/PdAg/Al2O3催化剂/乙炔加氢Key words
oil-ammonia column Al2O3 support/calcination temperature/PdAg/Al2O3 catalyst/acetylene hydrogenation分类
化学化工引用本文复制引用
许洪,王海燕,车春霞,韩伟..油氨柱Al2O3载体制备及乙炔加氢催化剂性能[J].石油化工,2025,54(7):909-916,8.
