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Effect of Fe/Co Mass Ratio on Catalytic Performances of Cu-Fe-Co Based Catalysts for Mixed Alcohols Synthesis
Guo Hai-Jun1,2; Xiong Lian1,2; Luo Cai-Rong1,2; Ding Fei2; Chen Xin-De1,2; Chen Yong3
2011-11-01
发表期刊ACTA PHYSICO-CHIMICA SINICA
卷号27期号:11页码:2632-2638
摘要A series of Cu-Fe-Co based catalysts with different mass fractions of Fe and Co were prepared by co-impregnation method. The catalytic performances of the catalysts for mixed alcohols synthesis from carbon monoxide hydrogenation were investigated in a fixed bed flow reactor. The samples were characterized by Brunauer-Emmett-Teller (BET), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), field-emission scanning electron microscope (FE-SEM), and H-2 temperature-programmed reduction (H-2-TPR). The results showed that the addition of a suitable content of Co to the Cu-Fe based catalyst significantly improved the space-time yield (STY) and CO conversion while alcohol selectivity was constant. For the catalyst with a mass fraction of Cu, Fe, and Co of 25%, 22%, and 3%, respectively, a STY of 205.6 g.kg(-1)h(-1) and CO conversion of 56.6% were obtained. The XRD, XPS, and TPR results showed that when the Cu content was unchanged, the introduction of some Co contributed to the formation of a small quantity of the CuFe2O4 phase on the surface of catalysts, which promoted the interaction between Cu and Fe, improved the dispersion of active components and enhanced the catalytic activity and STY of the mixed alcohols. With an increase of the Co content in the catalyst, the interaction between the metallic components was transformed and the Cu-Co spinel phase was generated, leading to a slight decrease of alcohol selectivity.
文章类型Article
关键词Cu-fe-co Based Catalyst Co Hydrogenation Mixed Alcohol Space-time Yield Selectivity Of Mixed Alcohols
WOS标题词Science & Technology ; Physical Sciences
DOI10.3866/PKU.WHXB20111114
研究领域[WOS]Chemistry
关键词[WOS]FISCHER-TROPSCH SYNTHESIS ; RAY PHOTOELECTRON-SPECTROSCOPY ; OXIDE CATALYSTS ; DIMETHYL ETHER ; HYDROGENATION ; SYNGAS ; XPS ; ADSORPTION ; PROMOTERS ; ETHANOL
收录类别SCI
语种英语
WOS类目Chemistry, Physical
WOS记录号WOS:000297451800022
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10335
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Key Lab Renewable Energy & Nat Gas Hydrate, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
3.Chinese Acad Sci, Guangzhou Branch, Guangzhou 510640, Peoples R China
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Guo Hai-Jun,Xiong Lian,Luo Cai-Rong,et al. Effect of Fe/Co Mass Ratio on Catalytic Performances of Cu-Fe-Co Based Catalysts for Mixed Alcohols Synthesis[J]. ACTA PHYSICO-CHIMICA SINICA,2011,27(11):2632-2638.
APA Guo Hai-Jun,Xiong Lian,Luo Cai-Rong,Ding Fei,Chen Xin-De,&Chen Yong.(2011).Effect of Fe/Co Mass Ratio on Catalytic Performances of Cu-Fe-Co Based Catalysts for Mixed Alcohols Synthesis.ACTA PHYSICO-CHIMICA SINICA,27(11),2632-2638.
MLA Guo Hai-Jun,et al."Effect of Fe/Co Mass Ratio on Catalytic Performances of Cu-Fe-Co Based Catalysts for Mixed Alcohols Synthesis".ACTA PHYSICO-CHIMICA SINICA 27.11(2011):2632-2638.
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