改性ZSM-5分子筛催化甲苯、甲醇苯环烷基化反应的研究进展

摘要

综述了近三十年来国内外有关在改性ZSM-5沸石催化剂上，甲苯、甲醇苯环烷基化制备对二甲苯反应的研究状况。经过改性的ZSM-5型沸石具有合适的孔径和适当强度及数量的表面酸中心，有利于反应活性及选择性的提高。参考文献145篇。%A review is presented on benzene ring alkylation of toluene with methanol for p-xylene synthesis over modified ZSM-5 type zeolites in the last 30 years. There are appropriate channel structure and certain surface acidity in modified ZSM-5 type zeolites. The results showed that the surface acidity is of inportant to increase the reaction catalytic activity. The reaction mechanism is also evaluated.Total of 145 references is involved