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Effects of Li Promoter on the Performance of Co/AC Catalysts for CO Hydrogenation to Mixed Linear alpha-Alcohols
Pei Yanpeng1,3; Ding Yunjie1,2; Zang Juan1,3; Song Xiangen1,3; Dong Wenda1,3; Zhu Hejun1; Wang Tao1; Chen Weimiao1
关键词Syngas Mixed Linear Alpha-alcohol Lithium Promoter Cobalt Carbide Species
刊名CHINESE JOURNAL OF CATALYSIS
2012-05-01
DOI10.3724/SP.J.1088.2012.10917
33期:5页:808-812
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]FISCHER-TROPSCH SYNTHESIS ; POTASSIUM PROMOTER ; SYNGAS
英文摘要The effect of Li promoter on the catalytic performance of the activated carbon (AC) supported cobalt catalysts (Co/AC) for CO hydrogenation was investigated by means of CO hydrogenation, X-ray diffraction (XRD), temperature-programmed reduction (H-2-TPR), and temperature-programmed desorption of adsorbed CO (CO-TPD). The results showed that the addition of Li significantly suppressed the formation of gaseous hydrocarbons and remarkably improved the selectivities for higher hydrocarbons (C5+) and mixed linear alpha-alcohols (C-1-C-18) of CO hydrogenation over the Co/AC catalyst. However, the activity of CO hydrogenation decreased gradually with the increase of Li loading in the Co-based catalyst. H-2-TPR and CO-TPD results illuminated that the existence of Li decreased the reducibility of Co2+ and the ability of CO dissociation, which was the rate-determining step. XRD results indicated that the existence of Li promoter enhanced the formation of Co2C species.
语种英语
WOS记录号WOS:000304019200010
引用统计
被引频次:10[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/321008/138009
专题中国科学院大连化学物理研究所
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.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
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Pei Yanpeng,Ding Yunjie,Zang Juan,et al. Effects of Li Promoter on the Performance of Co/AC Catalysts for CO Hydrogenation to Mixed Linear alpha-Alcohols[J]. CHINESE JOURNAL OF CATALYSIS,2012,33(5):808-812.
APA Pei Yanpeng.,Ding Yunjie.,Zang Juan.,Song Xiangen.,Dong Wenda.,...&Chen Weimiao.(2012).Effects of Li Promoter on the Performance of Co/AC Catalysts for CO Hydrogenation to Mixed Linear alpha-Alcohols.CHINESE JOURNAL OF CATALYSIS,33(5),808-812.
MLA Pei Yanpeng,et al."Effects of Li Promoter on the Performance of Co/AC Catalysts for CO Hydrogenation to Mixed Linear alpha-Alcohols".CHINESE JOURNAL OF CATALYSIS 33.5(2012):808-812.
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