QIBEBT-IR
Methane conversion to syngas and hydrogen in a dual phase Ce0.8Sm0.2O2-delta-Sr2Fe1.5Mo0.5O5+delta membrane reactor with improved stability
Liang, Wenyuan1,2,4; Zhou, Hangyue1,4; Caro, Juergen2; Jiang, Heqing1,3
2018-08-02
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN0360-3199
Volume43Issue:31Pages:14478-14485
AbstractCoupling of partial oxidation of methane (POM) with water dissociation in an oxygen transport membrane is a promising technology for methane utilization. However, cobalt based membrane materials show poor stability under the above harsh conditions. In this work, a nominal 60 wt % Ce0.8Sm0.2O2-delta-40 wt % Sr2Fe2.5Mo0.5O5+delta (CSO-SFMO) dual phase membrane is reported, which was synthesized by using a one-pot EDTA-citric acid complexing method. The phase structure and morphology of the CSO-SFMO membrane were characterized by XRD, SEM and EDXS. It was found that a uniform distribution of CSO phase with a fluorite structure and SFMO phase with a perovskite structure was achieved in the dual phase membrane. The CSO-SFMO membrane exhibited an improved stability compared with cobalt based perovskite Ba0.5Sr0.5Co0.8Fe0.2O3-delta, (BSCF) membrane under CO2 or reductive gas atmospheres. The oxygen permeation flux of the dual phase membrane was investigated under different oxygen partial pressure gradients: air/He, air/CO2, air/POM, and H2O/POM. At 950 degrees C, the oxygen permeation fluxes of the CSO-SFMO membrane under air/POM and H2O/POM gradients were 2.7 cm(3) (STP) min(-1) cm(-2) and 0.75 cm(3) (STP) min(-1) cm(-2), respectively, which were much higher than the oxygen flux of 0.1 cm(3) (STP) min(-1) cm(-2) under air/He. Moreover, a CO selectivity of 98%, a CH4 conversion of 97% on the POM side and a H-2 production of 1.5 cm(3) (STP) min(-1) cm(-2) on the H2O splitting side were achieved in CSO-SFMO membrane reactor under the oxygen partial pressure gradient of H2O/POM, which was steadily run for 100 h before the measurement was intentionally stopped. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
KeywordOxygen transport membrane Partial oxidation of methane (POM) Hydrogen Water splitting
DOI10.1016/j.ijhydene.2018.06.008
WOS KeywordOXYGEN PERMEATION PROPERTIES ; OXIDE FUEL-CELLS ; PARTIAL OXIDATION ; SYNTHESIS GAS ; COMPOSITE MEMBRANE ; PERMEABILITY ; SEPARATION ; PEROVSKITES ; TRANSPORT
Language英语
Funding ProjectNational Natural Science Foundation of China[21471156] ; National Natural Science Foundation of China[21501186] ; State Key Laboratory of Coal Conversion[J15-16-907] ; China Postdoctoral Science Foundation[2018M632739] ; Natural Science Foundation of Shandong Province[ZR2017BB082] ; China Scholarship Council (CSC)
WOS Research AreaChemistry ; Electrochemistry ; Energy & Fuels
Funding OrganizationNational Natural Science Foundation of China ; State Key Laboratory of Coal Conversion ; China Postdoctoral Science Foundation ; Natural Science Foundation of Shandong Province ; China Scholarship Council (CSC)
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels
WOS IDWOS:000441493800038
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/12012
Collection中国科学院青岛生物能源与过程研究所
Corresponding AuthorCaro, Juergen; Jiang, Heqing
Affiliation1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biobased Mat, Qingdao 266101, Peoples R China
2.Leibniz Univ Hannover, Inst Phys Chem & Electrochem, Callinstr 3A, D-30167 Hannover, Germany
3.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Liang, Wenyuan,Zhou, Hangyue,Caro, Juergen,et al. Methane conversion to syngas and hydrogen in a dual phase Ce0.8Sm0.2O2-delta-Sr2Fe1.5Mo0.5O5+delta membrane reactor with improved stability[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2018,43(31):14478-14485.
APA Liang, Wenyuan,Zhou, Hangyue,Caro, Juergen,&Jiang, Heqing.(2018).Methane conversion to syngas and hydrogen in a dual phase Ce0.8Sm0.2O2-delta-Sr2Fe1.5Mo0.5O5+delta membrane reactor with improved stability.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,43(31),14478-14485.
MLA Liang, Wenyuan,et al."Methane conversion to syngas and hydrogen in a dual phase Ce0.8Sm0.2O2-delta-Sr2Fe1.5Mo0.5O5+delta membrane reactor with improved stability".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 43.31(2018):14478-14485.
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