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题名: The performance of C-2 oxygenates synthesis from syngas over Rh-Mn-Li-Fe/SiO2 catalysts with various Rh loadings
作者: Yin, HM;  Ding, YJ;  Luo, HY;  Yan, L;  Wang, T;  Lin, LW
刊名: ENERGY & FUELS
发表日期: 2003-11-01
DOI: 10.1021/ef0300085
卷: 17, 期:6, 页:1401-1406
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Energy & Fuels ;  Engineering, Chemical
研究领域[WOS]: Energy & Fuels ;  Engineering
英文摘要: The promotion effect of additives on Rh-Mn-Li-Fe/SiO2 catalyst was investigated by means of an in-situ FTIR technique. IR results suggested that the additives Fe, Mn, and Li might be in close contact with Rh, and form new active sites, which promoted CO activation over Rh surface and favored the formation of C-2-oxygenated intermediates. The catalysts with rhodium loading of 1.0-5.0 wt % were tested by CO hydrogenation to find the optimized rhodium loading. The results showed that the high-rhodium-loading catalysts exhibited high activity and selectivity toward C-2 oxygenates at low temperature, but the selectivity was very sensitive to reaction temperature, low-rhodium-loading catalysts showed low activity, while the selectivity was not so sensitive to reaction temperature, therefore high space time yield (STY) of C-2 oxygenates can be obtained by increasing the reaction temperature. Among the catalysts investigated, the 1.5 wt % rhodium catalyst exhibited the highest selectivity and relative higher rhodium efficiency for the synthesis of C-2 oxygenates.
关键词[WOS]: SUPPORTED RHODIUM CATALYSTS ;  PRESSURE FT-IR ;  CO HYDROGENATION ;  CARBON-MONOXIDE ;  PROMOTED RHODIUM ;  SIO2-SUPPORTED RH ;  SYNTHESIS GAS ;  MN CATALYSTS ;  ACETIC-ACID ;  ACETALDEHYDE
语种: 英语
WOS记录号: WOS:000186735400001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138273
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, Nat Gas Utilizat & Appl Catalysis Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Yin, HM,Ding, YJ,Luo, HY,et al. The performance of C-2 oxygenates synthesis from syngas over Rh-Mn-Li-Fe/SiO2 catalysts with various Rh loadings[J]. ENERGY & FUELS,2003,17(6):1401-1406.
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