A new method of low-temperature methanol synthesis on Cu/ZnO/Al2O3 catalysts from CO/CO2/H2

被引：123

作者：

Yang, Ruiqin ^{[2
]}

Yu, Xiaocai ^{[2
]}

Zhang, Yi ^{[1
]}

Li, Wenze ^{[2
]}

Tsubaki, Noritatsu ^{[1
]}

机构：

[1] Toyama Univ, Sch Engn, Dept Appl Chem, Toyama 9308555, Japan

[2] Shenyang Inst Chem Technol, Dept Appl Chem, Shenyang 110142, Peoples R China

来源：

FUEL | 2008年 / 87卷 / 4-5期

关键词：

methanol; Cu/Zno/Al(2)o(3); Co/Co-2/H-2;

D O I：

10.1016/j.fuel.2007.06.020

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 new synthesis method of low-temperature methanol proceeded on Cu/ZnO/Al2O3 catalysts from CO/CO2/H-2 using 2-butanol as promoters. The Cu/ZnO/Al2O3 catalysts were prepared by co-impregnation of r-Al2O3 with an aqueous solution of copper nitrate and zinc nitrate. The total carbon turnover frequency (TOF), the yield and selectivity of methanol were the highest by using the Cu/ZnO/Al2O3 catalyst with copper loading of 5% and the Zn/Cu molar ratio of 1/1, which precursor were not calcined, and reduced at 493 K. The activity of the catalysts increased due to the presence of the CuO/ZnO phase in the oxidized form of impregnation Cu/ZnO/Al2O3 catalysts. The active sites of the Cu/ZnO/Al2O3 catalyst for methanol synthesis are not only metallic Cu but also special sites such as the Cu-Zn site, i.e. metallic Cu and the Cu-Zn site work cooperatively to catalyze the methanol synthesis reaction. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：443 / 450

页数：8

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