Highly selective synthesis of 2,6-dimethylnaphthalene over alkaline treated ZSM-12 zeolite0

被引：16

作者：

Li, Cheng ^{[1
]}

Li, Lingfei ^{[2
]}

Wu, Wei ^{[1
]}

Wang, Dongsheng ^{[1
]}

Toktarev, A. V. ^{[3
]}

Kikhtyanin, O. V. ^{[3
]}

Echevskii, G. V. ^{[3
]}

机构：

[1] Heilongjiang Univ, Key Lab Chem Engn Proc & Technol High Efficiency, Harbin 150080, Heilongjiang, Peoples R China

[2] Northeast Petr Univ, Huarui Coll, Harbin 150027, Peoples R China

[3] Boreskov Inst Catalysis, Novosibirsk 630090, Russia

来源：

SECOND SREE CONFERENCE ON CHEMICAL ENGINEERING (CCE 2011) | 2011年 / 18卷

关键词：

ZSM-12; zeolite; 2,6-dimethylnaphthalene; Desilication; Alkylation; METHYLATION; CATALYSTS;

D O I：

10.1016/j.proeng.2011.11.032

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

ZSM-12 zeolites synthesized by using different templates were modified by desilication treatment in alkaline medium. The samples before and after alkaline treatment were characterized by X-ray diffraction (XRD), X-ray fluorescence spectrometry (XRF), N-2 physical adsorption, solid state NMR (Si-29 MAS NMR), ammonia temperature programmed desorption (NH3-TPD) and FT-IR spectroscopy of adsorbed pyridine (Py-IR). The effects of desilication on the structure, acidity and catalytic performance in the alkylation of naphthalene with methanol over ZSM-12 zeolites were investigated. The results showed that acidity of ZSM-12 zeolites could be adjusted and mesopores were generated after alkaline treatment, so catalytic performance was effectively improved, and increase of naphthalene conversion, selectivity to 2,6-DMN and 2,6-/2,7-DMN ratio were observed over the alkaline treated samples. (C) 2010 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Society for Resources, Environment and Engineering

引用

页数：6

共 40 条

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