SrCe0.95Yb0.05O3-α hollow-fiber membrane and its property in proton conduction

被引：10

作者：

Liu, YT ^{[1
]}

Tan, XY ^{[1
]}

Li, K ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem Engn, London SW7 2AZ, England

来源：

AICHE JOURNAL | 2006年 / 52卷 / 04期

关键词：

SrCe0.95Yb0.05O3-alpha; perovskite; hollow-fiber membrane; hydrogen permeation;

D O I：

10.1002/aic.10738

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

SrCe(0.95)yb(0.05)O(3-alpha). (SCYb) hollow-fiber membranes have been prepared by an immersion-induced phase-inversionlsintering method where polyethersulfone (PESf) is used as a binder, N-methyl-2-pyrrollidone (NMP) as solvent, and polyvinylpyrrolidone (PVP, K16-18) as an additive, respectively. By a programmed sintering process, the hollow-fiber precursor prepared from the phase-inversion technique has been successfully sintered into a dense membrane. A hollow-fiber membrane module has also been fabricated and the hydrogen permeation (proton conduction) properties of the developed SCYb hollow-fiber membranes have been studied under different operating conditions with respect to temperature and hydrogen/oxygen feed concentration. Comparison between experimental data and theoretical results indicates that the surface exchange reactions may con tribute some resistances to hydrogen permeation. With the length of the fiber and operating conditions used in this study, the flow patterns show no noticeable effect on the total hydrogen permeation flux. (c) 2005 American Institute of Chemical Engineers.

引用

页码：1577 / 1585

页数：9

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