Selective synthesis of 2,6-dimethylnaphthalene by methylation of 2-methylnaphthalene with methanol on Zr/(Al)ZSM-5

被引：45

作者：

Jin, LJ ^{[1
]}

Fang, YM ^{[1
]}

Hu, HQ ^{[1
]}

机构：

[1] Dalian Univ Technol, Inst Coal Chem Engn, State Key Lab Fine Chem, Dalian 116012, Liaoning, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2006年 / 7卷 / 05期

基金：

中国国家自然科学基金;

关键词：

2,6-dimethylnaphthalene; 2-methylitaphthalene; Zr/(Al)ZSM-5; selectivity; isomorphic substitution;

D O I：

10.1016/j.catcom.2005.11.012

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new catalyst, Zr/(Al)ZSM-5, prepared by partly isomorphic substitution of Al in ZSM-5 framework by Zr, was used to synthesize 2,6-dimethylnaphthalene (DMN) by methylation of 2-methylnaphthalene (MN) with methanol. The catalyst exhibits higher selectivity of DMNs, 2,6-DMN and beta,beta-DMNs, 2,6- to 2,7-DMN ratio and lower isomerization than unmodified ZSM-5. About 10% of 2-MN conversion, 56% of 2,6-DMN selectivity, ratio of 2,6- to 2,7-DMN being 3.0 are obtained on Zr/(Al)ZSM-5. The improvement in catalytic performance is mainly attributed to the weakening of acid strength and the expansion of pore dimension from partial incorporation of Zr in ZSM-5 framework. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：255 / 259

页数：5

共 16 条

[1] Transalkylation of naphthalene with mesitylene over H-ZSM-11 zeolite [J].