燃料化学学报2020，Vol.48Issue(8)：960-969,10.
介孔量对梯级孔丝光沸石催化二甲醚羰基化反应性能的影响
Enhanced activity and stability over hierarchical porous mordenite ( MOR) for carbonylation of dimethyl ether:Influence of mesopores
摘要
Abstract
The dimethyl ether ( DME) carbonylation reaction over mordenite is greatly affected by the mass transfer process. In this research, hierarchical mordenite catalysts were synthesized and characterized to investigate the influence of mesopores on the structure, mass transfer and catalytic performance. The results show that the medium-strong acid sites decrease while strong acid sites increase over the hierarchical samples. The introduced mesopores can significantly improve the mass transfer efficiency and the carbonylation performances are markedly improved on the hierarchical samples. In addition, the polymerization degree of coke deposition on the deactivated samples decreases although the coke amount increases. Excessive usage of mesopore templates can damage the structure of the MOR catalysts, thus leading to the loss of acid sites and the decrease in catalytic performance.关键词
PEG/MOR/羰基化/传质/积炭Key words
PEG/MOR/carbonylation/mass transfer/coke deposition分类
化学化工引用本文复制引用
王晓胜,李然家,余长春,刘毓翔,徐春明,卢春喜..介孔量对梯级孔丝光沸石催化二甲醚羰基化反应性能的影响[J].燃料化学学报,2020,48(8):960-969,10.基金项目
The project was supported by the Science Foundation of China University of Petroleum, Beijing (2462018YJRC028), the Fundamental Research Funds for the Central Universities,China Postdoctoral Science Foundation (2019M660931), National Natural Science Foundation of China (21908123), State Key Laboratory of Heavy Oil Processing (SKLOP 201902006) and Shandong Provincial Natural Science Foundation, China (ZR2019BB048). （2462018YJRC028）
