Catalytic performance of V2O5/ZrO2-Al2O3 for methanol oxidation

被引：45

作者：

Zhao, Yubao ^{[1
,2
]}

Qin, Zhangfeng ^{[1
]}

Wang, Guofu ^{[1
]}

Dong, Mei ^{[1
]}

Huang, Lichun ^{[1
,2
]}

Wu, Zhiwei ^{[1
,2
]}

Fan, Weibin ^{[1
]}

Wang, Jianguo ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

来源：

FUEL | 2013年 / 104卷

基金：

中国国家自然科学基金;

关键词：

Methanol; Oxidation; Dehydration; V2O5/Al2O3-ZrO2; Dimethoxymethane; SELECTIVE OXIDATION; OXIDE CATALYSTS; METHYL FORMATE; DIMETHOXYMETHANE; DEHYDROGENATION; ETHER; IR;

D O I：

10.1016/j.fuel.2010.03.008

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 bifunctional V2O5/ZrO2-Al2O3 catalyst of oxidation and dehydration was prepared by wet impregnation method and used in methanol oxidation. The redox, acidity and texture properties of the catalyst were characterized by N-2 sorption, H-2-TPR, NH3-TPD, and XRD. Under mild reaction conditions, V2O5/ZrO2-Al2O3 possesses reasonable acidic and redox properties and exhibits excellent catalytic performance in methanol oxidation with dimethoxymethane, methyl formate and formaldehyde as main products. The catalytic performance of V2O5/ZrO2-Al2O3 is dependent on the catalyst compositions and reaction temperature. V2O5(16.5 wt.%)/ZrO2(8.5 wt.%)-Al2O3 exhibits a good synergistic effect of the redox and acidic properties in the methanol oxidation; over it the selectivity to dimethoxymethane reaches 89.0% with the methanol conversion of 11.1% at 165 degrees C, while the selectivity to methyl formate is 30.0% with the methanol conversion of 66.1% at 215 degrees C. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：22 / 27

页数：6

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