Simulation of Oxygen Permeability of Dual-phase Hollow Fiber Membrane

doi:10.3724/SP.J.1077.2012.11635

Journal of Inorganic Materials ›› 2012, Vol. 27 ›› Issue (9): 951-955.DOI: 10.3724/SP.J.1077.2012.11635

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Simulation of Oxygen Permeability of Dual-phase Hollow Fiber Membrane

YANG Chun-Li¹, XU Qi-Ming¹, GONG Ming¹, LIU Wei²

(1. Postdoctoral Mobile Research Station of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China; 2. CAS Key Laboratory of Energy Conversion Materials, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China)

Received:2011-10-12 Revised:2011-11-21 Published:2012-09-20 Online:2012-08-28
About author:YANG Chun-Li.E-mail: clyang@mail.ustc.edu.cn
Supported by:
National Natural Science Foundation of China (21076204); Basic Research Foundation of Xi'an University of Architecture and Technology (JC1107); Scientific Research Program Foundation by Shaanxi Provincial Education Department (12JK0598, 2010JK643); China Postdoctoral Science Foundation Funded Project (2012M511985)

Abstract

Abstract: Dense Bi_1.5Y_0.3Sm_0.2O₃ (BYS)-La_0.8Sr_0.2MnO_3–_d(LSM) hollow fiber membrane was fabricated by the combined phase inversion/sintering technique. The hollow fiber possesses an asymmetric structure: a finger-like porous structure near the inner surface and a dense layer near the outer surface. The outlet oxygen content is related to the oxygen partial pressure on the core and shell side and the length of the hollow fiber. Because the oxygen partial pressure on the permeated side increases along the axis, the hollow fiber is evenly divided into n segments. The oxygen permeation process is simulated by a plug flow model in combination with the Wagner theory. The simulation results are consistent with the measured results, which is a good guide for estimating oxygen production capacity of membrane components.

Key words: dual-phase hollow fiber, oxygen permeation process, plug-flow model, Wagner equation

CLC Number:

TQ174

YANG Chun-Li, XU Qi-Ming, GONG Ming, LIU Wei. Simulation of Oxygen Permeability of Dual-phase Hollow Fiber Membrane[J]. Journal of Inorganic Materials, 2012, 27(9): 951-955.

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Simulation of Oxygen Permeability of Dual-phase Hollow Fiber Membrane

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