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题名: Study of catalysts for hydrogen production by the high temperature steam reforming of methanol
作者: Zhang, C.;  Yuan, Z.;  Liu, N.;  Wang, S.;  Wang, S.
通讯作者: 王树东
关键词: catalyst ;  high temperature ;  hydrogen production ;  methanol ;  steam reforming
刊名: FUEL CELLS
发表日期: 2006-12-01
DOI: 10.1002/fuce.200600010
卷: 6, 期:6, 页:466-471
收录类别: SCI ;  ISTP
文章类型: Article
部门归属: 9
项目归属: 901
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Electrochemistry ;  Energy & Fuels
英文摘要: In the present study, a series of Ir-based catalysts, supported on Al2O3, ZrO2, CeO2, and CexZr1-xO2, are investigated for the production of hydrogen by the high temperature steam reforming of methanol (SRM). Results show that CeO2 and CexZr1-xO2 can promote the CO water gas shift (WGS) reaction, which is involved in the SRM network. Ir/CeO2 exhibits a better initial methanol conversion and its stability can be enhanced by the addition of ZrO2 to CeO2. The TPR and XRD characterization of the CeO2-ZrO2 mixed oxides shows that Ce0.5Zr0.5O2 is the optimum support in maintaining catalyst activity, as well as stability. The addition of the precious metal Pt to Ir/Ce0.5Zr0.5O2 demonstrates a synergistic effect and can obviously increase the selectivity of H-2. In the meantime, the CO content in the reformate products decreases from 9 mol-% to 6 mol-%. Under the conditions of H2O/ CH3OH=1.5 (molar ratio), LHSV=2.5 h(-1), and a reaction temperature of 400 degrees C, a 92% methanol conversion is obtained during a 200 hour test on a 0.3%Ir-0.3%Pt/Ce0.5Zr0.5O2 catalyst and the stability is better than that of a commercial copper-based catalyst.
关键词[WOS]: CEO2-ZRO2 SOLID-SOLUTIONS ;  OXYGEN-STORAGE PROPERTIES ;  GAS-SHIFT REACTION ;  MIXED OXIDES ;  MEMBRANE REACTOR ;  REDOX BEHAVIOR ;  PALLADIUM ;  PD/ZNO ;  CU/ZNO/AL2O3 ;  PROMOTION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000243332900010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/98281
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Zhang, C.,Yuan, Z.,Liu, N.,et al. Study of catalysts for hydrogen production by the high temperature steam reforming of methanol[J]. FUEL CELLS,2006,6(6):466-471.
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