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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
发表期刊APPLIED CATALYSIS B-ENVIRONMENTAL
卷号96期号:3-4页码:441-448
摘要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.; 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.
文章类型Article
关键词Ethanol Reforming Cobalt Catalyst Rhodium Catalyst Carbon Deposition Reaction Pathway
学科领域热化学转化
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.apcatb.2010.02.041
关键词[WOS]SUPPORTED COBALT CATALYSTS ; FUEL-CELL APPLICATION ; OXYGEN STORAGE CAPACITY ; WATER-GAS SHIFT ; HYDROGEN-PRODUCTION ; LOW-TEMPERATURE ; BIO-ETHANOL ; CO/AL2O3 CATALYSTS ; NICKEL-CATALYSTS ; FILAMENTOUS CARBON
收录类别SCI
语种英语
WOS研究方向Chemistry ; Engineering
WOS类目Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS记录号WOS:000277847300021
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文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/640
专题热化学转化研究组
作者单位1.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
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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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