{"title":"Effect of Fe impregnation sequence on ethanol synthesis from syngas over Mn and Fe promoted Rh/γ-Al2O3","authors":"Fang Li, Weixing Qian","doi":"10.1007/s13203-017-0189-y","DOIUrl":null,"url":null,"abstract":"<p>Fe promoted Rh–Mn/Al<sub>2</sub>O<sub>3</sub> catalysts with different Fe impregnation sequences were used for ethanol formation from syngas. The effect of Fe impregnation sequence on the structure and performance of the catalysts was investigated by means of N<sub>2</sub> adsorption, CO adsorption, H<sub>2</sub>-TPR, H<sub>2</sub>-TPD, CO-TPD, XPS and DRIFTS. The results showed that the RhMnFe/Al<sub>2</sub>O<sub>3</sub> catalyst prepared by co-impregnation method showed higher ethanol selectivity than those prepared by sequential impregnation methods. Characterization results indicated that the RhMnFe/Al<sub>2</sub>O<sub>3</sub> catalyst exhibited moderate CO hydrogenation and dissociation ability, stronger CO insertion ability and synergistic effect, which was responsible for its higher ethanol selectivity.</p>","PeriodicalId":472,"journal":{"name":"Applied Petrochemical Research","volume":"7 2-4","pages":"161 - 167"},"PeriodicalIF":0.1250,"publicationDate":"2017-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s13203-017-0189-y","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Petrochemical Research","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1007/s13203-017-0189-y","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 8
Abstract
Fe promoted Rh–Mn/Al2O3 catalysts with different Fe impregnation sequences were used for ethanol formation from syngas. The effect of Fe impregnation sequence on the structure and performance of the catalysts was investigated by means of N2 adsorption, CO adsorption, H2-TPR, H2-TPD, CO-TPD, XPS and DRIFTS. The results showed that the RhMnFe/Al2O3 catalyst prepared by co-impregnation method showed higher ethanol selectivity than those prepared by sequential impregnation methods. Characterization results indicated that the RhMnFe/Al2O3 catalyst exhibited moderate CO hydrogenation and dissociation ability, stronger CO insertion ability and synergistic effect, which was responsible for its higher ethanol selectivity.
期刊介绍：
Applied Petrochemical Research is a quarterly Open Access journal supported by King Abdulaziz City for Science and Technology and all the manuscripts are single-blind peer-reviewed for scientific quality and acceptance. The article-processing charge (APC) for all authors is covered by KACST. Publication of original applied research on all aspects of the petrochemical industry focusing on new and smart technologies that allow the production of value-added end products in a cost-effective way. Topics of interest include: • Review of Petrochemical Processes • Reaction Engineering • Design • Catalysis • Pilot Plant and Production Studies • Synthesis As Applied to any of the following aspects of Petrochemical Research: -Feedstock Petrochemicals: Ethylene Production, Propylene Production, Butylene Production, Aromatics Production (Benzene, Toluene, Xylene etc...), Oxygenate Production (Methanol, Ethanol, Propanol etc…), Paraffins and Waxes. -Petrochemical Refining Processes: Cracking (Steam Cracking, Hydrocracking, Fluid Catalytic Cracking), Reforming and Aromatisation, Isomerisation Processes, Dimerization and Polymerization, Aromatic Alkylation, Oxidation Processes, Hydrogenation and Dehydrogenation. -Products: Polymers and Plastics, Lubricants, Speciality and Fine Chemicals (Adhesives, Fragrances, Flavours etc...), Fibres, Pharmaceuticals.
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