Title:
OXYGEN SEPARATION MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2015/152494
Kind Code:
A1
Abstract:
The present invention relates to an oxygen separation membrane and, more specifically, to an oxygen separation membrane having: a heterostructured separation membrane containing an oxide having a perovskite structure and an oxide having a fluorite structure; and a coating layer containing an oxide having a perovskite structure and formed on at least one surface of the separation membrane, wherein the heterostructured separation membrane contains 18-40 vol% of an oxide having a perovskite structure and 60-82 vol% of an oxide having a fluorite structure, the thickness of the heterostructured separation membrane is 30-300 μm and the thickness of the coating layer is maintained to be 1-100 μm, and thus the porosity, the electrical conductivity and the durability of the coating layer are excellent and the oxygen permeability can be maintained to be 1 mL/cm2·min or more under the conditions of 850°C, 1 atm and a difference in oxygen partial pressure of 0.21 to 10-4 atm.
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Inventors:
YU JI-HAENG (KR)
JOO JONG-HOON (KR)
YOO CHUNG-YUL (KR)
JOO JONG-HOON (KR)
YOO CHUNG-YUL (KR)
Application Number:
PCT/KR2014/012119
Publication Date:
October 08, 2015
Filing Date:
December 10, 2014
Export Citation:
Assignee:
KOREA ENERGY RESEARCH INST (KR)
International Classes:
B01D71/00; B01D69/00; C01B13/02
Foreign References:
| US20020106495A1 | 2002-08-08 | |||
| KR20110125740A | 2011-11-22 |
Other References:
JUNG, JAE WON: "Mixed Conductivity of La0.6Sr0.4Co0.2Fe0.8O3-delta-Gd0.1Ce0.9O2-delta Composite Membrane for Oxygen Separation", UNIVERSITY OF SCIENCE AND TECHNOLOGY MASTER'S THESIS, 31 August 2013 (2013-08-31), pages 1 - 60
GEUM SOOK PARK ET AL.: "Mixed conduction and oxygen permeation in dual-phase Ce0.9Gd0.1O1.95- La0.6Sr0.4Co0.2Fe0.8O3-d membrane", ISSI-19, 2 June 2013 (2013-06-02), pages 73
PARK, GEUM SOOK ET AL.: "Mixed Conduction and Oxygen Permeation in Dual-Phase Ce0.9Gd0.1O1.95- La0.6Sr0.4Co0.2Fe0.8O3-d Membrane", 2013 KSEE SPRING CONFERENCE, 23 May 2013 (2013-05-23), pages 186
GEUM SOOK PARK ET AL.: "Mixed conduction and oxygen permeation in dual-phase Ce0.9Gd0.1O1.95- La0.6Sr0.4Co0.2Fe0.8O3-d membrane", ISSI-19, 2 June 2013 (2013-06-02), pages 73
PARK, GEUM SOOK ET AL.: "Mixed Conduction and Oxygen Permeation in Dual-Phase Ce0.9Gd0.1O1.95- La0.6Sr0.4Co0.2Fe0.8O3-d Membrane", 2013 KSEE SPRING CONFERENCE, 23 May 2013 (2013-05-23), pages 186
Attorney, Agent or Firm:
MOON, HWAN-GOO (KR)
문환구 (KR)
문환구 (KR)
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