期刊
ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
卷 15, 期 6, 页码 -出版社
WILEY
DOI: 10.1002/apj.2528
关键词
carbon dioxide resistance; dual-phase membrane; hollow fiber; oxygen permeation; stability
资金
- Swinburne University of Technology Sarawak Campus
- Australian Research Council Discovery Project Program [DP160104937]
- National Natural Science Foundation of China [21776165, 21978157]
Ce0.85Sm0.15O1.925-Sm0.6Sr0.4Al0.3Fe0.7O3-delta(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 degrees 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.
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