分子筛酸位分布对其甲醇制烯烃(MTO)催化性能影响的研究进展  

Influence of acid sites distribution of zeolites on their catalytic performance in methanol to olefins(MTO): a review

作　　者：王森[1,2] 李诗颖 张莉 秦张峰 董梅[1] 李俊汾[1] 王建国[1] 樊卫斌[1] 

机构地区：[1]中国科学院山西煤炭化学研究所,煤转化国家重点实验室,太原030001 [2]中国科学院大学,北京100049

出　　处：《中国科学：化学》2017年第11期1262-1272,共11页SCIENTIA SINICA Chimica

基　　金：国家自然科学基金(编号:21227002,20143268,21273264,21273263);国家重点基础研究发展计划(编号:2011CB201400);山西省自然科学基金(编号:2013021007-3,2012011005-2)资助项目

摘　　要：甲醇制烯烃(MTO)作为一条由煤、天然气及生物质等含碳资源制备重要化学品的非石油路线,近年来备受关注.分子筛作为MTO常用的催化剂,其催化性能和MTO反应行为与其活性酸中心分布特征密切相关,认识这些关系对研发新型高效MTO催化剂和改进反应工艺具有重要意义.为此,本文简述了近年来有关分子筛活性酸中心分布与其催化性能之间关联的理论和实验研究进展.重点讨论了不同分子筛酸位分布的表征、定向调控及其对反应路线和催化动力学的影响.The conversion of methanol to olefins （MTO）, as a non-petroleum route to get valuable chemicals from multifarious carbon resources such as coal, natural gas and biomass, has attracted extensive attention in recent years. The catalytic performance of acidic zeolites in MTO is closely related to the A1 siting or acid sites distribution in framework; a clear understanding on this relation is of benefits to the development of better zeolite catalysts and the improvement of current processes for MTO. Therefore, we attempt to make a review on the recent research progress in the influence of acid sites distribution of zeolites on their catalytic performance in MTO. The review is focused on the characterization and oriented regulation of the acid sties distribution as well as the influence of A1 siting or acid sites distribution on reaction pathway and catalytic kinetics.

关 键 词：甲醇制烯烃 分子筛 酸位分布 反应机理 

分 类 号：O643.36[理学—物理化学] TQ221.21[理学—化学]