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Water-gas shift reaction in a Pd membrane reactor over Pt/Ce0.6Zr0.4O2 catalyst
Bi, Yadong; Xu, Hengyong; Li, Wenzhao; Goldbach, Andreas
KeywordWater-gas Shift Reaction Pd Membrane Reactor Pt/ce0.6zr0.4o2 Catalyst H-2 Recovery Co Methanation
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
2009-04-01
DOI10.1016/j.ijhydene.2009.01.046
Volume34Issue:7Pages:2965-2971
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels
WOS Research AreaChemistry ; Electrochemistry ; Energy & Fuels
WOS KeywordNOBLE-METAL CATALYSTS ; PERFORMANCE ; GENERATION ; MIXTURES ; HYDROGEN ; CERIA
AbstractA water-gas shift (WGS) Pt/Ce0.6Zr0.4O2 catalyst has been prepared, which exhibits much faster kinetics than conventional high-temperature ferrochrome catalysts in the temperature range most suitable for operation of WGS Pd membrane reactors, i.e. above 623 K. The performance of the Pt catalyst was tested in a reactor furnished with a supported, 1.4 mu m thick high-flux Pd membrane using feeds obtained by autothermal reforming of natural gas. CO conversion remained above thermodynamic equilibrium up to feed space velocities of 9100 l kg(-1) h(-1) at 623 K, P-total = 1.2 MPa and steam-to-carbon ratio S/C = 3, but H-2 recovery decreased from 84.8% at GHSV = 4050 l kg(-1) h(-1) to 48.7% at the highest space velocity. This rapid decline of separation performance is attributed to slow H-2 diffusion through the catalyst bed, suggesting that external mass flow resistance has a significant impact on the H-2 permeation rate in such membrane reactors. This could be minimized by the development of WGS catalysts with even faster kinetics which would allow further reduction of the catalyst bed height. (C) 2009 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
Language英语
WOS IDWOS:000265473900013
Citation statistics
Cited Times:98[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/141400
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, Appl Catalysis Lab, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Bi, Yadong,Xu, Hengyong,Li, Wenzhao,et al. Water-gas shift reaction in a Pd membrane reactor over Pt/Ce0.6Zr0.4O2 catalyst[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2009,34(7):2965-2971.
APA Bi, Yadong,Xu, Hengyong,Li, Wenzhao,&Goldbach, Andreas.(2009).Water-gas shift reaction in a Pd membrane reactor over Pt/Ce0.6Zr0.4O2 catalyst.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,34(7),2965-2971.
MLA Bi, Yadong,et al."Water-gas shift reaction in a Pd membrane reactor over Pt/Ce0.6Zr0.4O2 catalyst".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 34.7(2009):2965-2971.
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