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题名: Oxygen permeation and partial oxidation of methane in dual-phase membrane reactors
作者: Zhu, Xuefeng1;  Li, Qiming1;  He, Yufeng1;  Cong, You1;  Yang, Weishen1
通讯作者: 杨维慎
关键词: Dual-phase membrane ;  Oxygen permeation ;  POM ;  Membrane reactor ;  Mixed conductor
刊名: JOURNAL OF MEMBRANE SCIENCE
发表日期: 2010-09-15
DOI: 10.1016/j.memsci.2010.05.044
卷: 360, 期:1-2, 页:454-460
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 504
产权排名: 1;1
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Engineering, Chemical ;  Polymer Science
研究领域[WOS]: Engineering ;  Polymer Science
英文摘要: Oxygen permeation and partial oxidation of methane (POM) were investigated in 75 wt.% Ce(0.85)Sm(0.15) O(1.925)-25 wt.% Sm(0.6)Sr(0.4)FeO(3-delta) (SDC-SSF) dual-phase composite membrane reactors. The dual-phase membrane prepared via a one-pot method comprises a fluorite-type oxide ionic conductor (SDC) for the transport of oxide ions and a perovskite-type mixed conductor (SSF) for the transport of both oxide ions and electrons. X-ray diffraction (XRD) results reveal good phase compatibility between the fluorite and perovskite oxides even after sintered at high temperature. The oxygen permeation flux increased with time in the initial stage, from 0.23 to 0.5 cm(3) cm(-2) min(-1) in the first 18 h. Once a steady state was reached, the permeation flux remained constant in the investigated period (> 500 h). Long-term operation of POM reaction was successfully achieved in dual-phase membrane reactors, and methane conversion and CO selectivity >98% were obtained for pure methane as the feed. XRD, scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDX) characterizations reveal good structural stability for the dual-phase membrane, even after long-term operation under syngas production conditions. (C) 2010 Elsevier B.V. All rights reserved.
关键词[WOS]: DENSE CERAMIC MEMBRANES ;  HOLLOW-FIBER MEMBRANES ;  COMPOSITE MEMBRANES ;  STRUCTURAL STABILITY ;  SYNTHESIS GAS ;  PEROVSKITE ;  SYNGAS ;  PERMEABILITY ;  TRANSPORT ;  CONDUCTIVITY
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000280311500052
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/103145
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, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Zhu, Xuefeng,Li, Qiming,He, Yufeng,et al. Oxygen permeation and partial oxidation of methane in dual-phase membrane reactors[J]. JOURNAL OF MEMBRANE SCIENCE,2010,360(1-2):454-460.
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