石油化工2024，Vol.53Issue(7)：929-933,5.DOI:10.3969/j.issn.1000-8144.2024.07.002
Pd催化剂表面物种对丙炔加氢性能的影响
Influence of surface species on Pd catalysts for propyne hydrogenation performance
摘要
Abstract
The surface species and metal dispersion of Pd catalysts were studied by H2-TPR-MS-IR,CO pulse adsorption,He-TPD,H2-TPR-MS,and AFM-IR.The surface species states of Pd catalyst were determined.The relationship between the surface species of Pd catalyst and the performance of propyne hydrogenation was also investigated.The results indicate that there are indeed carbon and nitrogen species on Pd catalyst surface,which could only be completely removed above 800℃.The presence of carbon and nitrogen species on the surface of Pd catalyst is benefit for Pd dispersion,promoting the reaction to the expected product direction,and preventing further hydrogenation of propylene.So they are benefit for selective propyne hydrogenation reactions.关键词
Pd催化剂/催化加氢/吸附/表面物种Key words
Pd catalyst/catalytic hydrogenation/adsorption/surface species分类
化学化工引用本文复制引用
满毅,杨晨熹,姜健准,王骞阅,白羽,柳颖..Pd催化剂表面物种对丙炔加氢性能的影响[J].石油化工,2024,53(7):929-933,5.基金项目
中国石油化工股份有限公司资助项目(223199). （223199）
