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CO 2 ‐resistant SDC‐SSAF oxygen selective dual‐phase hollow fiber membranes
Author(s) -
Zhang Shude,
Li Claudia,
Meng Xiuxia,
Tan Xiaoyao,
Zhu Zhonghua,
Sunarso Jaka,
Liu Shaomin
Publication year - 2020
Publication title -
asia‐pacific journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.348
H-Index - 35
eISSN - 1932-2143
pISSN - 1932-2135
DOI - 10.1002/apj.2528
Subject(s) - permeation , oxygen , membrane , partial pressure , oxygen transport , materials science , fiber , analytical chemistry (journal) , hollow fiber membrane , phase inversion , chemical engineering , chemistry , chromatography , composite material , biochemistry , organic chemistry , engineering
Abstract Ce 0.85 Sm 0.15 O 1.925 –Sm 0.6 Sr 0.4 Al 0.3 Fe 0.7 O 3‐δ (SDC‐SSAF) hollow fiber membranes aimed for oxyfuel application are fabricated via a phase inversion‐sintering technique using powders synthesized from EDTA–citrate complex method. Oxygen ions transport is revealed to be the limiting step that determines the overall oxygen transport rate in SDC‐SSAF. SDC‐SSAF hollow fiber membrane attained a maximum flux of 2.6 ml min −1 cm −2 at 950°C under an oxygen partial pressure difference of 1/0.02 atm (feed/permeate). Variation in oxygen partial pressure on the permeate side exerts larger influence on the oxygen permeation flux relative to the change on the feed side. Stability tests over 100 h demonstrate stable oxygen permeation flux under both He and CO 2 sweep conditions.