Effect of impregnation sequence on performance of SiO2 supported Cu-Fe catalysts for higher alcohols synthesis from syngas

被引：26

作者：

Sun, Chao ^{[1
]}

Mao, Dongsen ^{[1
]}

Han, Lupeng ^{[1
]}

Yu, Jun ^{[1
]}

机构：

[1] Shanghai Inst Technol, Res Inst Appl Catalysis, Sch Chem & Environm Engn, Shanghai 201418, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2016年 / 84卷

关键词：

Cu-Fe/SiO2; CO hydrogenation; Higher alcohols; Impregnation sequences; BIMODAL PORE CATALYST; MIXED ALCOHOLS; BIMETALLIC NANOPARTICLES; CO HYDROGENATION; HIGH SELECTIVITY; CONVERSION; MICROSTRUCTURE; PROMOTER; ETHANOL;

D O I：

10.1016/j.catcom.2016.07.003

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：

The effects of different impregnation sequences of copper and iron on the performance of Cu-Fe/SiO2 catalysts for higher alcohols synthesis from syngas were investigated by N-2 adsorption, XRD, H-2-TPR, CO-IR, XPS, and CO hydrogenation reaction. The results indicate that the catalyst prepared by impregnation of support first with Fe and then with Cu exhibits the highest selectivity (36.1%) and space time yield (153.3 g.kg(cat)(-1).h(-1)) of alcohols. The CO conversion and alcohol selectivity of the catalysts was closely related to the content of surface Cu, and the ratio of surface contents of Cu to Fe, respectively. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：175 / 178

页数：4

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