负载型Pd/SBA-15催化剂的双烯选择性加氢催化性能  

Catalytic Properties of Supported Pd/SBA-15 Catalyst for Selective Hydrogenation of Alkadienes

作　　者：刘静瑜[1] 陆海孟[1] 凌正国[2] 史立华[1] 许波连[1] 范以宁[1] 

机构地区：[1]南京大学化学化工学院介观化学教育部重点实验室,江苏省纳米技术重点实验室,江苏南京210093 [2]中国石化金陵石化公司烷基苯厂研发部,江苏南京210046

出　　处：《催化学报》2008年第3期206-208,共3页

摘　　要：用微型反应器评价体系结合程序升温还原CO、化学吸附、BET比表面积测试和高分辨率透射电子显微镜等多种表征方法研究了负载型Pd/SBA-15催化剂的长链正构双烯选择性加氢的催化性能.结果表明,与Pd/-γAl2O3工业催化剂相比,Pd/SBA-15催化剂双烯选择性加氢的催化性能更优良,且Pd/SBA-15催化剂双烯选择性加氢催化性能与Pd负载量密切相关.随Pd负载量增加,Pd/SBA-15催化剂的金属分散度和长链正构双烯加氢选择性急剧下降.The structure and catalytic properties of the supported Pd/SBA-15 catalyst for selective hydrogenation of C10 -C13 alkadienes have been studied using microreactor tests combined with temperature-programmed reduction, CO chemisorption, BET surface area measurements, and high-resolution transmission electron microscopy. The Pd/SBA-15 catalyst exhibits higher catalytic activity and selectivity than the commercial Pd/-γAl2O3 catalyst for the reaction. The catalytic properties of the Pd/SBA-15 catalyst are closely related to Pd loading. With increasing Pd loading, Pd dispersion and the selectivity for alkenes decrease remarkably.

关 键 词：钯 SBA-15 负载型催化剂 双烯烃 选择性加氢 

分 类 号：TQ032[化学工程] O643.32[理学—物理化学]