无机胺合成的ZSM-5沸石对甲苯烷基化反应的催化作用

Catalysis of ZSM-5 zedite synthesed with inorganic amine for alkylation reaction of toluene

对氨水为模板剂合成的ZSM - 5沸石分子筛进行改性 ,用于甲苯甲醇烷基化反应。实验结果表明 ,(H)ZSM - 5有较好的催化活性。当用MeO对 (H)ZSM - 5进行改性后 ,随着MeO含量的增加 ,催化反应的活性降低而生成对二甲苯的选择性升高 。

H)ZSM-5 was synthesized by using ammonia as the templating and was used in alkylation reaction of toluene and methenol.The experimental result showed that such prepared (H)ZSM-5 was improved further by using MeO,it was found that catalytic activity decreased with the increase of MeO,while the selectivity of producing p-xylene increased.This is beacause that part of strong acidic centers was covered by MeO.