REFORMING OF ETHANOL - DEHYDROGENATION TO ETHYL-ACETATE AND STEAM REFORMING TO ACETIC-ACID OVER COPPER-BASED CATALYSTS

被引：104

作者：

IWASA, N

TAKEZAWA, N

机构：

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1991年 / 64卷 / 09期

关键词：

D O I：

10.1246/bcsj.64.2619

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The title reactions, 2CH3CH2OH --> CH3COOC2H5+2H2 and CH3CH2OH+H2O --> CH3COOH+2H2, were carried out over copper-based catalysts (Cu, Cu/SiO2, Cu/ZrO2, Cu/Al2O3, Cu/MgO, and Cu/ZnO). The selectivities to ethyl acetate and acetic acid markedly depended upon the supports used. Acetaldehyde was formed by the dehydrogenation of ethanol and transformed to either ethyl acetate or acetic acid through steps in which a nucleophilic addition of ethanol (or ethoxide ions) or water (or hydroxide ions) to acetaldehyde occurred. The rats of the transformation steps to ethyl acetate and acetic acid were appreciably affected by the kinds of supports used. The transformation steps proceeded slowly, compared with the dehydrogenation step.

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页码：2619 / 2623

页数：5

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