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题名: Performance of Promoted Rh-Fe/Al2O3 Catalysts for CO Hydrogenation to Ethanol
作者: Chen Weimiao;  Ding Yunjie1;  Song Xiangeng2;  Zhu Hejun;  Yan Li;  Wang Tao
关键词: rhodium ;  iron ;  alumina ;  supported catalyst ;  carbon monoxide ;  hydrogenation ;  ethanol
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2012-06-01
DOI: 10.3724/SP.J.1088.2012.11215
卷: 33, 期:6, 页:1007-1013
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: The effects of Rh and Fe loading, and promoters on CO hydrogenation performance over Rh-Fe/Al2O3 catalysts were investigated, as well as the stability of the catalysts. The results showed that with the increasing of Fe loading, methanol selectivity produced from syngas increased continuously accompanying by the decrease in methane selectivity, but the ethanol selectivity had a maximum value. The addition of alkaline or alkaline earth metals promoted methanol coupling or CO dissociation and insertion, or suppressed hydrogenation ability more or less, as a result, ethanol selectivity enhanced, and methanol selectivity decreased, but hydrocarbon selectivity remained almost unchanged. With CO hydrogenation reaction proceeding, hydrocarbon selectivity decreased, but methanol selectivity increased gradually, unfortunately, ethanol selectivity decreased, and the additions of promoters had little effect on it, probably due to the reduction of Fe species by syngas or decreasing of Rh-Fe interface areas during reaction.
关键词[WOS]: RH-BASED CATALYSTS ;  SYNGAS ;  CONVERSION ;  SPECTROSCOPY ;  MECHANISM ;  ALCOHOLS ;  RHODIUM ;  IRON
语种: 英语
WOS记录号: WOS:000305108900014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142974
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Chen Weimiao,Ding Yunjie,Song Xiangeng,et al. Performance of Promoted Rh-Fe/Al2O3 Catalysts for CO Hydrogenation to Ethanol[J]. CHINESE JOURNAL OF CATALYSIS,2012,33(6):1007-1013.
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