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Role of chromia in copper catalysts for dehydrogenation of ethanol

 

作者: Y. S. Prasad,   B. D. Padaliax,   S. K. Raman,  

 

期刊: Journal of Chemical Technology and Biotechnology. Chemical Technology  （WILEY Available online 1985）
卷期: Volume 35, issue 1  

页码: 15-20

 

ISSN:0264-3413

 

年代: 1985

 

DOI:10.1002/jctb.5040350104

 

出版商: Wiley Subscription Services, Inc., A Wiley Company

 

关键词: Dehydrogenation;ethanol;copper catalyst;deactivation;role of chromia

 

数据来源: WILEY

 

摘要:

AbstractDuring direct vapour phase dehydrogenation of ethanol, a copper‐on‐silica catalyst lost much of its activity in 100 h. Analysis with X‐ray diffraction, scanning electron microscopy and X‐ray photoemission showed that both sintering and carbon deposition accompanied the drop in activity. In catalysts in which chromia was also present copper was found to be in a more highly dispersed form which was more resistant to sintering. The chromia catalyst accumulated carbon comparably to those containing copp

 

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