DICP OpenIR
Initiation of oxygen permeation and POM reaction in different mixed conducting ceramic membrane reactors
Tong, Jianhua; Yang, Weishen; Suda, Hiroyuki; Haraya, Kenji; Tong JH(佟建华); Tong JH(佟建华)
KeywordOxygen Permeation Pom Reaction Ceramic Membrane Reactor
Source PublicationCATALYSIS TODAY
2006-10-30
DOI10.1016/j.cattod.2006.02.089
Volume118Issue:1-2Pages:144-150
Indexed ByISTP ; SCI
SubtypeArticle
Department5
Funding Project504
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordPEROVSKITE-TYPE OXIDES ; PARTIAL OXIDATION ; METHANE ; SYNGAS ; STABILITY ; PERMEABILITY ; SEPARATION ; CONVERSION
AbstractThe initiation of oxygen permeation and POM were studied in mixed conducting ceramic membrane reactors. Membrane material composition, and catalyst-loading mode were proven to have an important effect on the initiation of oxygen permeation and POM reaction. The initiation time for compositions of Ba0.5Sr0.5CO0.8Fe0.2O3-delta (BSCFO) and 13aCo(0.4)Fe(0.4)Zr(0.2)O(3-delta) (BCFZO) are 20 and 2 h, respectively. When the catalyst was loaded directly on the membrane surface the oxygen permeation flux increased 8-10-fold of that under air/He gradient. The good POM performance of the methane conversion, higher than 96% and the CO selectivity, higher than 95%, was achieved successfully. However, when the catalyst was loaded on a place away from the membrane surface or the catalyst was not loaded, the lower oxygen permeation flux (1-2-fold) and the poor POM performance (the methane conversion is lower than 30% and the CO selectivity is lower than 20%) were obtained. The characterization of XRD and SEM-EDS indicated that the initial process might be finished through initiating the catalyst and adjusting the membrane structure (the formation of a thin CoO containing porous layer with a thickness of about 10 mu m). The great increase of oxygen permeation flux can be ascribed to the great decrease of the oxygen partial pressure and the adjustment of the surface structure. (c) 2006 Elsevier B.V. All rights reserved.
Language英语
URL查看原文
WOS IDWOS:000241489700021
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Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/97705
Collection中国科学院大连化学物理研究所
Corresponding AuthorTong JH(佟建华); Tong JH(佟建华)
Affiliation1.Natl Inst Adv Ind Sci & Technol, AIST, Res Inst Innovat Sustainable Chem, Membrane Separat Proc Grp, Tsukuba, Ibaraki 3058565, Japan
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Tong, Jianhua,Yang, Weishen,Suda, Hiroyuki,et al. Initiation of oxygen permeation and POM reaction in different mixed conducting ceramic membrane reactors[J]. CATALYSIS TODAY,2006,118(1-2):144-150.
APA Tong, Jianhua,Yang, Weishen,Suda, Hiroyuki,Haraya, Kenji,佟建华,&佟建华.(2006).Initiation of oxygen permeation and POM reaction in different mixed conducting ceramic membrane reactors.CATALYSIS TODAY,118(1-2),144-150.
MLA Tong, Jianhua,et al."Initiation of oxygen permeation and POM reaction in different mixed conducting ceramic membrane reactors".CATALYSIS TODAY 118.1-2(2006):144-150.
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