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题名: One-step production of C-1-C-18 alcohols via Fischer-Tropsch reaction over activated carbon-supported cobalt catalysts: Promotional effect of modification by SiO2
作者: Pei, Yanpeng1, 3;  Ding, Yunjie1, 2;  Zhu, Hejun2;  Du, Hong1, 3
关键词: Co catalyst ;  Higher alcohol ;  SiO2 promoter ;  Fischer-Tropsch synthesis ;  Co2C
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2015-03-01
DOI: 10.1016/S1872-2067(14)60252-7
卷: 36, 期:3, 页:355-361
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 promotional effect of SiO2 on the catalytic synthesis of mixed C-1-C-18 alcohols from syngas using the Fischer-Tropsch reaction over activated carbon-supported cobalt catalysts was investigated. X-ray diffraction, H-2 temperature-programmed reduction, pulsed CO chemisorption and N-2 physisorption techniques were all employed to assess the catalyst. Although the addition of SiO2 decreased the reducibility of the Co component, Co dispersion was significantly increased and its aggregation during reaction was inhibited, resulting in greatly enhanced reaction activity. Appropriate amounts of SiO2 also promoted the formation of CO2C, leading to an increased selectivity for C-1-C-18 alcohols. More importantly, the addition of SiO2 favored the formation of higher molecular mass alcohols (C-6-C-18) by suppressing Co reduction, thus producing an abundance of Co(II) species capable of facilitating CO insertion. (C) 2015, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
关键词[WOS]: LONG-CHAIN HYDROCARBONS ;  LINEAR ALPHA-ALCOHOLS ;  CO HYDROGENATION ;  CO/AC CATALYSTS ;  PORE-SIZE ;  PERFORMANCE ;  SYNGAS ;  PRECURSOR ;  METHANE ;  SURFACE
语种: 英语
WOS记录号: WOS:000351029200014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146109
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, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Pei, Yanpeng,Ding, Yunjie,Zhu, Hejun,et al. One-step production of C-1-C-18 alcohols via Fischer-Tropsch reaction over activated carbon-supported cobalt catalysts: Promotional effect of modification by SiO2[J]. CHINESE JOURNAL OF CATALYSIS,2015,36(3):355-361.
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