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A comparative study between Co and Rh for steam reforming of ethanol
Karim, Ayman M.1; Su, Yu1; Sun, Junming1; Yang, Cheng2; Strohm, James J.1; King, David L.1; Wang, Yong1,3
2010-06-07
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
Volume96Issue:3-4Pages:441-448
AbstractRh and Co-based catalyst performance was compared for steam reforming of ethanol under conditions suitable for industrial hydrogen production. The reaction conditions were varied to elucidate the differences in reaction pathways on both catalysts. On Co/ZnO, CH(4) is a secondary product formed through the methanation reaction, while it is produced directly by ethanol decomposition on Rh. The difference in the reaction pathway is shown to favor Co-based catalysts for selective hydrogen production under elevated system pressures (up to 15 bar) of industrial importance. The carbon deposition rate was also studied, and we show that Co is more prone to coking and catalyst failure. However, the Co/ZnO catalyst can be regenerated, by mild oxidation, despite the high carbon deposition rate. We conclude that Co/ZnO is a more suitable catalyst system for steam reforming of ethanol due to the low methane selectivity, low cost and the possibility of regeneration with mild oxidation. (C) 2010 Elsevier B.V. All rights reserved.; Rh and Co-based catalyst performance was compared for steam reforming of ethanol under conditions suitable for industrial hydrogen production. The reaction conditions were varied to elucidate the differences in reaction pathways on both catalysts. On Co/ZnO, CH(4) is a secondary product formed through the methanation reaction, while it is produced directly by ethanol decomposition on Rh. The difference in the reaction pathway is shown to favor Co-based catalysts for selective hydrogen production under elevated system pressures (up to 15 bar) of industrial importance. The carbon deposition rate was also studied, and we show that Co is more prone to coking and catalyst failure. However, the Co/ZnO catalyst can be regenerated, by mild oxidation, despite the high carbon deposition rate. We conclude that Co/ZnO is a more suitable catalyst system for steam reforming of ethanol due to the low methane selectivity, low cost and the possibility of regeneration with mild oxidation. (C) 2010 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordEthanol Reforming Cobalt Catalyst Rhodium Catalyst Carbon Deposition Reaction Pathway
Subject Area热化学转化
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.apcatb.2010.02.041
WOS KeywordSUPPORTED COBALT CATALYSTS ; FUEL-CELL APPLICATION ; OXYGEN STORAGE CAPACITY ; WATER-GAS SHIFT ; HYDROGEN-PRODUCTION ; LOW-TEMPERATURE ; BIO-ETHANOL ; CO/AL2O3 CATALYSTS ; NICKEL-CATALYSTS ; FILAMENTOUS CARBON
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS IDWOS:000277847300021
Citation statistics
Cited Times:63[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/640
Collection热化学转化团队
Affiliation1.Pacific NW Natl Lab, Inst Interfacial Catalysis, Richland, WA 99352 USA
2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Beijing 100864, Peoples R China
3.Washington State Univ, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99164 USA
Recommended Citation
GB/T 7714
Karim, Ayman M.,Su, Yu,Sun, Junming,et al. A comparative study between Co and Rh for steam reforming of ethanol[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2010,96(3-4):441-448.
APA Karim, Ayman M..,Su, Yu.,Sun, Junming.,Yang, Cheng.,Strohm, James J..,...&Wang, Yong.(2010).A comparative study between Co and Rh for steam reforming of ethanol.APPLIED CATALYSIS B-ENVIRONMENTAL,96(3-4),441-448.
MLA Karim, Ayman M.,et al."A comparative study between Co and Rh for steam reforming of ethanol".APPLIED CATALYSIS B-ENVIRONMENTAL 96.3-4(2010):441-448.
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