高等学校化学学报2021，Vol.42Issue(1)：227-238,12.DOI:10.7503/cjcu20200413
ZSM-5分子筛酸位分布及其甲醇制烯烃催化性能的定向管理与调控
Regulating the Acid Sites Distribution in ZSM-5 Zeolite and Its Catalytic Performance in the Conversion of Methanol to Olefins
摘要
Abstract
The catalytic performance and reaction mechanism of ZSM-5 zeolite in the conversion of methanol to olefins(MTO)is closely related to the distribution of acid sites in framework. In this work,it was demon-strated that adding proper content of Na+ions during synthesis can increase the proportion of acid sites in the intersection cavity of ZSM-5;the concentration of acid sites in the intersection cavity can promote the forma-tion of higher polymethylbenzene(polyMBs)and the propagation of aromatic cycle,forming more ethene. In contrast,in the Na+ions free synthesis system,more acid sites are distributed in the sinusoidal and straight channels of ZSM-5,which is more encouraging for the alkene cycle and conduces to producing more propene and higher alkenes(C3+).关键词
甲醇制烯烃/ZSM-5分子筛/酸位分布/管理与调控Key words
Methanol to olefins/ZSM-5 zeolite/Acid sites distribution/Regulation分类
化学化工引用本文复制引用
郭淑佳,王森,张莉,秦张峰,王鹏飞,董梅,王建国,樊卫斌..ZSM-5分子筛酸位分布及其甲醇制烯烃催化性能的定向管理与调控[J].高等学校化学学报,2021,42(1):227-238,12.基金项目
国家自然科学基金(批准号:U1910203, 21802157, 21991092, 21991090)、山西省自然科学基金(批准号:201901D211581)、山西省优秀博士生奖励资助项目(批准号:BK2018001)和中国科学院山西煤炭化学研究所煤转化国家重点实验室自主课题(批准号:2020BWZ004)资助.This paper is supported by the National Natural Science Foundation of China (Nos. U1910203, 21802157, 21991092, 21991090) , the Natural Science Foundation of Shanxi Province, China (No.201901D211581),the Excellent Doctoral Student Award and Subsidy Program of Shanxi Province,China(No.BK2018001)and the Autonomous Research Project of State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy Sciences(No.2020BWZ004). （批准号:U1910203, 21802157, 21991092, 21991090）
