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Partial oxidation of ethane to syngas in an oxygen-permeable membrane reactor
Wang, HH; Cong, Y; Yang, WS
关键词Partial Oxidation Of Ethane Membrane Reactor Oxygen Separation Perovskite Syngas
刊名JOURNAL OF MEMBRANE SCIENCE
2002-11-01
209期:1页:143-152
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Technology ; Physical Sciences
类目[WOS]Engineering, Chemical ; Polymer Science
研究领域[WOS]Engineering ; Polymer Science
关键词[WOS]ALKALI-METAL OXIDE ; CERAMIC MEMBRANE ; SYNTHESIS GAS ; METHANE ; PERMEATION ; CATALYSTS ; PERFORMANCE ; MONOLITHS
英文摘要A perovskite-type oxide of Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCFO) with mixed electronic and oxygen ionic conductivity at high temperatures was used as an oxygen-permeable membrane. A tubular membrane of BSCFO made by extrusion method has been used in the membrane reactor to exclusively transport oxygen for the partial oxidation of ethane (POE) to syngas with catalyst of LiLaNiO/gamma-Al2O3 at temperatures of 800-900 degreesC. After only 30 min POE reaction in the membrane reactor, the oxygen permeation flux reached at 8.2 ml cm(-2) min(-1). After that, the oxygen permeation flux increased slowly and it took 12 h to reach at 11.0 ml cm(-2) min(-1). SEM and EDS analysis showed that Sr and Ba segregations occurred on the used membrane surface exposed to air while Co slightly enriched on the membrane surface exposed to ethane. The oxygen permeation flux increased with increasing of concentration of C2H6, which was attributed to increasing of the driving force resulting from the more reducing conditions produced with an increase of concentration of C2H6 in the feed gas. The tubular membrane reactor was successfully operated for POE reaction at 875 degreesC for more than 100 h without failure, with ethane conversion of similar to 100%, CO selectivity of >91% and oxygen permeation fluxes of 10-11 ml cm(-2) min(-1). (C) 2002 Elsevier Science B.V. All rights reserved.
语种英语
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WOS记录号WOS:000178624300011
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被引频次:33[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/84905
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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Wang, HH,Cong, Y,Yang, WS. Partial oxidation of ethane to syngas in an oxygen-permeable membrane reactor[J]. JOURNAL OF MEMBRANE SCIENCE,2002,209(1):143-152.
APA Wang, HH,Cong, Y,&Yang, WS.(2002).Partial oxidation of ethane to syngas in an oxygen-permeable membrane reactor.JOURNAL OF MEMBRANE SCIENCE,209(1),143-152.
MLA Wang, HH,et al."Partial oxidation of ethane to syngas in an oxygen-permeable membrane reactor".JOURNAL OF MEMBRANE SCIENCE 209.1(2002):143-152.
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