ZSM-5/MCM-48复合分子筛基催化剂上甲醇制汽油反应工艺条件的研究

Study on the Reaction Conditions of Methanol to Gasoline on ZSM-5/MCM-48 Based Catalyst

甲醇转化为烃类液体燃料和化学品是当前替代石油技术研究的热点之一。早期由Mobil公司首先提出了甲醇制汽油（MTG）技术。ZSM-5分子筛以其独特的孔道结构在MTG反应中表现出良好的催化性能，但其强酸性导致油相产物中的芳烃含量高，并且较易积碳而需频繁再生。

The effects of reaction temperature, pressure and WHSV on the performance of ZSM-5/MCM-48 composite molecular sieve catalyst in methanol to gasoline（MTG） process were investigated, and was compared to ZSM-5 catalyst. It was found that the ZSM-5/MCM-48 catalyst was excellent for MTG, the content of aromatics in the liquid products was lowered effectively, and especially the durene content was reduced to 2%（w） or less. Under the appropriate reaction conditions： 380-400 ~C, 0.5 MPa and WHSV 2 h1, the conversion of methanol, the yield of C5, the mass fraction of aromatics and the mass fraction of durene in the liquid products were 99.3%, 33.7%, 44.3% and 1.7%, respectively.