Enhanced oxygen permeation through perovskite hollow fibre membranes by methane activation

Hua Liu; Zhaobao Pang; Xiaoyao Tan; Z. Shao; J. Sunarso; R. Ding; S. Liu

doi:10.1016/j.ceramint.2008.07.011

Enhanced oxygen permeation through perovskite hollow fibre membranes by methane activation

Hua Liu, Zhaobao Pang, Xiaoyao Tan, Z. Shao, J. Sunarso, R. Ding, S. Liu

College of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

Hollow fibre membranes of mixed conducting perovskite La_0.6Sr_0.4Co_0.2Fe_0.8O₃ (LSCF) were prepared via the combined phase inversion and sintering technique. The fibres were tested for air separation with a home-made reactor under the oxygen partial pressure gradient generated by the air/He streams. Some fibres were in situ activated by introducing methane in the He sweeping gas at high temperatures. The activated membranes with new morphology were created by transforming the inner densified surface layer to a porous structure. Compared to the original membranes, the activated gave appreciable higher oxygen fluxes. At 800 °C, the oxygen fluxes were increased by a factor of 10 after activation was carried out at 1000 °C for 1 h.

Original language	English
Pages (from-to)	1435-1439
Number of pages	5
Journal	Ceramics International
Volume	35
Issue number	4
DOIs	https://doi.org/10.1016/j.ceramint.2008.07.011
State	Published - May 2009

Keywords

Hollow fibre
Inorganic membrane
LaSrCoFeO
Oxygen separation
Perovskite

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10.1016/j.ceramint.2008.07.011

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title = "Enhanced oxygen permeation through perovskite hollow fibre membranes by methane activation",

abstract = "Hollow fibre membranes of mixed conducting perovskite La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) were prepared via the combined phase inversion and sintering technique. The fibres were tested for air separation with a home-made reactor under the oxygen partial pressure gradient generated by the air/He streams. Some fibres were in situ activated by introducing methane in the He sweeping gas at high temperatures. The activated membranes with new morphology were created by transforming the inner densified surface layer to a porous structure. Compared to the original membranes, the activated gave appreciable higher oxygen fluxes. At 800 °C, the oxygen fluxes were increased by a factor of 10 after activation was carried out at 1000 °C for 1 h.",

keywords = "Hollow fibre, Inorganic membrane, LaSrCoFeO, Oxygen separation, Perovskite",

author = "Hua Liu and Zhaobao Pang and Xiaoyao Tan and Z. Shao and J. Sunarso and R. Ding and S. Liu",

year = "2009",

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journal = "Ceramics International",

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TY - JOUR

T1 - Enhanced oxygen permeation through perovskite hollow fibre membranes by methane activation

AU - Liu, Hua

AU - Pang, Zhaobao

AU - Tan, Xiaoyao

AU - Shao, Z.

AU - Sunarso, J.

AU - Ding, R.

AU - Liu, S.

PY - 2009/5

Y1 - 2009/5

N2 - Hollow fibre membranes of mixed conducting perovskite La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) were prepared via the combined phase inversion and sintering technique. The fibres were tested for air separation with a home-made reactor under the oxygen partial pressure gradient generated by the air/He streams. Some fibres were in situ activated by introducing methane in the He sweeping gas at high temperatures. The activated membranes with new morphology were created by transforming the inner densified surface layer to a porous structure. Compared to the original membranes, the activated gave appreciable higher oxygen fluxes. At 800 °C, the oxygen fluxes were increased by a factor of 10 after activation was carried out at 1000 °C for 1 h.

AB - Hollow fibre membranes of mixed conducting perovskite La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) were prepared via the combined phase inversion and sintering technique. The fibres were tested for air separation with a home-made reactor under the oxygen partial pressure gradient generated by the air/He streams. Some fibres were in situ activated by introducing methane in the He sweeping gas at high temperatures. The activated membranes with new morphology were created by transforming the inner densified surface layer to a porous structure. Compared to the original membranes, the activated gave appreciable higher oxygen fluxes. At 800 °C, the oxygen fluxes were increased by a factor of 10 after activation was carried out at 1000 °C for 1 h.

KW - Hollow fibre

KW - Inorganic membrane

KW - LaSrCoFeO

KW - Oxygen separation

KW - Perovskite

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U2 - 10.1016/j.ceramint.2008.07.011

DO - 10.1016/j.ceramint.2008.07.011

M3 - 文章

AN - SCOPUS:61449236485

SN - 0272-8842

VL - 35

SP - 1435

EP - 1439

JO - Ceramics International

JF - Ceramics International

IS - 4

ER -

Enhanced oxygen permeation through perovskite hollow fibre membranes by methane activation

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