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Approaches and nature of improving Rh-based catalyst performance for CO hydrogenation to C-2-oxygenates
Chen Weimiao; Ding Yunjie; Jiang Dahao; Jiao Guiping; Zhu Hejun; Pan Zhendong; Luo Hongyuan
关键词Carbon Monoxide Hydrogenation Rhodium-based Catalyst C-2-oxygenate Thermodynamics Reaction Mechanism
刊名CHINESE JOURNAL OF CATALYSIS
2006-11-01
27期:11页:999-1004
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
关键词[WOS]SUPPORTED RHODIUM CATALYSTS ; METAL-PARTICLE SIZE ; ETHYLENE HYDROFORMYLATION ; OXYGENATE FORMATION ; PROMOTED RHODIUM ; MECHANISM ; SELECTIVITY ; RH/SIO2
英文摘要Thermodynamic analysis results revealed that the formation of C-2-oxygenates from syngas is much more unfavorable than the formation of hydrocarbons. Therefore, the crucial and effective method to promote the C-2-oxygenate synthesis is to develop high selective catalysts. According to the mechanism of C-2-oxygenate formation, the natures and the approaches to improve the catalytic performance of the Rh-based catalyst for CO hydrogenation to C-2-oxygenates were the improvement and the balance in CO dissociation and insertion activity, the proper hydrogenation activity, and the optimal Rh size on the catalyst surface. The impregnation and reduction conditions were optimized to suppress correctly the catalytic activity of the Rh-Mn-Li-Fe/SiO2 catalyst for CO hydrogenation. Consequently, CO insertion competed favorably with hydrogenation, resulting in a maximum selectivity (91.6% In mass fraction) for C-2-oxygenates with a high yield and a much low methane selectivity (6.3% in mass fraction).
语种英语
WOS记录号WOS:000242869300015
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140100
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
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GB/T 7714
Chen Weimiao,Ding Yunjie,Jiang Dahao,et al. Approaches and nature of improving Rh-based catalyst performance for CO hydrogenation to C-2-oxygenates[J]. CHINESE JOURNAL OF CATALYSIS,2006,27(11):999-1004.
APA Chen Weimiao.,Ding Yunjie.,Jiang Dahao.,Jiao Guiping.,Zhu Hejun.,...&Luo Hongyuan.(2006).Approaches and nature of improving Rh-based catalyst performance for CO hydrogenation to C-2-oxygenates.CHINESE JOURNAL OF CATALYSIS,27(11),999-1004.
MLA Chen Weimiao,et al."Approaches and nature of improving Rh-based catalyst performance for CO hydrogenation to C-2-oxygenates".CHINESE JOURNAL OF CATALYSIS 27.11(2006):999-1004.
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