MODIFIED COPPER-COBALT CHROMIUM-OXIDE CATALYSTS FOR CO2 HYDROGENATION TO MIXED ALCOHOLS (C-1-C-6)

被引：6

作者：

HUANG, W

YIN, LH

WANG, CY

机构：

[1] Institute of Coal Chemical Engineering, Taiyuan Univ. of Tech., Taiyuan

来源：

ENERGY CONVERSION AND MANAGEMENT | 1995年 / 36卷 / 6-9期

关键词：

D O I：

10.1016/0196-8904(95)00074-N

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The activity of modified copper-cobalt-chromium oxide catalysts for the hydrogenation of CO2 to mixed alcohols(c(1)-c(6)) has been investigated. the results showed that copper-cobalt-chromium oxide was a most effective catalyst for hydrogenation of CO2, with a high CO2 conversion and an alcohol distribution from C-1 to C-s. X-ray diffraction indicated that after reaction the main phases on catalysts were Cu metal and Co-Cr spinel. XPS measurements revealed that after reduction the surface state of catalysts was at Cu degrees, Cu+ and Co2+, in which Cu degrees and Co2+ were dominant. ''In situ'' FTIR characterization found that adsorbed CO, formate, methoxyl, hpdrocarbonyl, carbonate and acyl were formed during reaction, It was found that the surface hydrocarbonyl and methoxyl increased synchronously with the increase of the surface formate, while the surface CO and acyl were formed only in the late period of reaction. From present study, it can be concluded that bath methanol and hydrocarbon can be formed via the surface formate.

引用

页码：589 / 592

页数：4

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