Dimethyl ether synthesis via methanol and syngas over rare earth metals modified zeolite Y and dual Cu-Mn-Zn catalysts

被引：144

作者：

Jin, Dingfeng ^{[1
]}

Zhu, Bing ^{[1
]}

Hou, Zhaoyin ^{[1
]}

Fel, Jinhua ^{[1
]}

Lou, Hui ^{[1
]}

Zheng, Xiaoming ^{[1
]}

机构：

[1] Zhejiang Univ, Inst Catalysis, Dept Chem, Hangzhou 310028, Peoples R China

来源：

FUEL | 2007年 / 86卷 / 17-18期

基金：

中国国家自然科学基金;

关键词：

dimethyl ether; methanol; zeolite Y;

D O I：

10.1016/j.fuel.2007.03.011

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A series of zeolite Y modified with La, Ce, Pr, Nd, Sin and Eu were prepared via ion-exchange, and characterized by XRD, FT-IR and NH3-TPD. It was found that these rare earth metals were encapsulated in the supercage of zeolite Y and resulted in its enhanced acidity. Among them, La-, Ce-, Pr- and Nd-modified zeolite Y exhibited higher activity and stability (than pure HY) for methanol dehydration to dimethyl ether (DME). For DME synthesis directly from CO hydrogenation using the dual Cu-Mn-Zn/modified-Y catalysts, it was found that Cu-Mn-Zn/La-Y and Cu-Mn-Zn/Ce-Y were more active than Cu-NIn-Zn/pure-HY. The conversion of CO on Cu-Mn_Zn/Ce-HY achieved 77.1% in an isothermal fixed bed reactor at 245 degrees C, 2.0 NIPa, H-2/CO = 3/2 and 1500 h(-1). (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：2707 / 2713

页数：7

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