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Title: Composite oxygen transport membrane

Abstract

A method of producing a composite oxygen ion membrane and a composite oxygen ion membrane in which a porous fuel oxidation layer and a dense separation layer and optionally, a porous surface exchange layer are formed on a porous support from mixtures of (Ln.sub.1-xA.sub.x).sub.wCr.sub.1-yB.sub.yO.sub.3-.delta. and a doped zirconia. In the porous fuel oxidation layer and the optional porous surface exchange layer, A is Calcium and in the dense separation layer A is not Calcium and, preferably is Strontium. Preferred materials are (La.sub.0.8Ca.sub.0.2).sub.0.95Cr.sub.0.5Mn.sub.0.5O.sub.3-.delta. for the porous fuel oxidation and optional porous surface exchange layers and (La.sub.0.8Sr.sub.0.2).sub.0.95Cr.sub.0.5Fe.sub.0.5O.sub.3-.delta. for the dense separation layer. The use of such materials allows the membrane to sintered in air and without the use of pore formers to reduce membrane manufacturing costs. The use of materials, as described herein, for forming the porous layers have application for forming any type of porous structure, such as a catalyst support.

Inventors:
;
Publication Date:
Research Org.:
PRAXAIR TECHNOLOGY, INC. Danbury, CT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1332308
Patent Number(s):
9,492,784
Application Number:
14/322,981
Assignee:
PRAXAIR TECHNOLOGY, INC. (Danbury, CT) NETL
DOE Contract Number:  
FC26-07NT43088
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Jul 03
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Christie, Gervase Maxwell, and Lane, Jonathan A. Composite oxygen transport membrane. United States: N. p., 2016. Web.
Christie, Gervase Maxwell, & Lane, Jonathan A. Composite oxygen transport membrane. United States.
Christie, Gervase Maxwell, and Lane, Jonathan A. Tue . "Composite oxygen transport membrane". United States. doi:. https://www.osti.gov/servlets/purl/1332308.
@article{osti_1332308,
title = {Composite oxygen transport membrane},
author = {Christie, Gervase Maxwell and Lane, Jonathan A.},
abstractNote = {A method of producing a composite oxygen ion membrane and a composite oxygen ion membrane in which a porous fuel oxidation layer and a dense separation layer and optionally, a porous surface exchange layer are formed on a porous support from mixtures of (Ln.sub.1-xA.sub.x).sub.wCr.sub.1-yB.sub.yO.sub.3-.delta. and a doped zirconia. In the porous fuel oxidation layer and the optional porous surface exchange layer, A is Calcium and in the dense separation layer A is not Calcium and, preferably is Strontium. Preferred materials are (La.sub.0.8Ca.sub.0.2).sub.0.95Cr.sub.0.5Mn.sub.0.5O.sub.3-.delta. for the porous fuel oxidation and optional porous surface exchange layers and (La.sub.0.8Sr.sub.0.2).sub.0.95Cr.sub.0.5Fe.sub.0.5O.sub.3-.delta. for the dense separation layer. The use of such materials allows the membrane to sintered in air and without the use of pore formers to reduce membrane manufacturing costs. The use of materials, as described herein, for forming the porous layers have application for forming any type of porous structure, such as a catalyst support.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 15 00:00:00 EST 2016},
month = {Tue Nov 15 00:00:00 EST 2016}
}

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