天然气化工2016，Vol.41Issue(4)：10-14,5.
Zn、Ga改性多级孔ZSM-5分子筛的原位合成及甲醇芳构化催化性能
In-situ synthesis of Ga and Zn modified hierarchical ZSM-5 zeolites and their catalytic performances in methanol aromatization
摘要
Abstract
Zn and Ga modified hierarchical ZSM-5 zeolites were prepared by in-situ hydrothermal synthesis and characterized by XRD, FT-IR, SEM, NH3-TPD and BET, and their catalytic performances in methanol aromatization were evaluated. The results show that the prepared ZSM-5 zeolites had hierarchical pore structures, and the modification by Ga and Zn had little influence on the morphology of catalysts particle, but regulated the L/B acid ratio on the catalyst surface, reducing Bronsted acidity while enhancing Lewis acidity obviously. The modification by Ga and Zn could markedly improve the catalytic activity and aromatics selectivity of the ZSM-5 zeolites in methanol aromatization reaction.关键词
镓/锌/改性ZSM-5分子筛/原位水热合成/甲醇/芳构化/MTAKey words
gallium/zinc/modified ZSM-5/in-situ hydrothermal synthesis/methanol/aromatization/MTA分类
化学工程引用本文复制引用
蒋忠祥,王海彦,张玲,魏民,孙悦..Zn、Ga改性多级孔ZSM-5分子筛的原位合成及甲醇芳构化催化性能[J].天然气化工,2016,41(4):10-14,5.基金项目
辽宁省自然科学基金 （）
