DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Composite oxygen transport membrane

Abstract

A method is described 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. Preferred materials are (La.sub.0.8Sr.sub.0.2).sub.0.95Cr.sub.0.7Fe.sub.0.3O.sub.3-.delta. for the porous fuel oxidation layer, (La.sub.0.8Sr.sub.0.2).sub.0.95Cr.sub.0.5Fe.sub.0.5O.sub.3-.delta. for the dense separation layer, and (La.sub.0.8Sr.sub.0.2).sub.0.95Cr.sub.0.3Fe.sub.0.7O.sub.3-.delta. for the porous surface exchange layer. Firing the said fuel activation and separation layers in nitrogen atmosphere unexpectedly allows the separation layer to sinter into a fully densified mass.

Inventors:
; ;
Issue Date:
Research Org.:
PRAXAIR TECHNOLOGY, INC. Danbury, CT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1331385
Patent Number(s):
9486735
Application Number:
14/856,038
Assignee:
PRAXAIR TECHNOLOGY, INC. (Danbury, CT)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
DOE Contract Number:  
FC26-07NT43088
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Sep 16
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE

Citation Formats

Lu, Zigui, Plonczak, Pawel J., and Lane, Jonathan A. Composite oxygen transport membrane. United States: N. p., 2016. Web.
Lu, Zigui, Plonczak, Pawel J., & Lane, Jonathan A. Composite oxygen transport membrane. United States.
Lu, Zigui, Plonczak, Pawel J., and Lane, Jonathan A. Tue . "Composite oxygen transport membrane". United States. https://www.osti.gov/servlets/purl/1331385.
@article{osti_1331385,
title = {Composite oxygen transport membrane},
author = {Lu, Zigui and Plonczak, Pawel J. and Lane, Jonathan A.},
abstractNote = {A method is described 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. Preferred materials are (La.sub.0.8Sr.sub.0.2).sub.0.95Cr.sub.0.7Fe.sub.0.3O.sub.3-.delta. for the porous fuel oxidation layer, (La.sub.0.8Sr.sub.0.2).sub.0.95Cr.sub.0.5Fe.sub.0.5O.sub.3-.delta. for the dense separation layer, and (La.sub.0.8Sr.sub.0.2).sub.0.95Cr.sub.0.3Fe.sub.0.7O.sub.3-.delta. for the porous surface exchange layer. Firing the said fuel activation and separation layers in nitrogen atmosphere unexpectedly allows the separation layer to sinter into a fully densified mass.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 08 00:00:00 EST 2016},
month = {Tue Nov 08 00:00:00 EST 2016}
}

Works referenced in this record:

Development of interconnect materials for solid oxide fuel cells
journal, May 2003


Development of oxygen transport membranes for coal-based power generation
journal, January 2011


Efficient Reduction of CO2 in a Solid Oxide Electrolyzer
journal, January 2008


Electrolysis of carbon dioxide in Solid Oxide Electrolysis Cells
journal, August 2009


Freeze-Casting of Porous Ceramics: A Review of Current Achievements and Issues
journal, March 2008


Ion transport membrane technology for oxygen separation and syngas production
journal, October 2000


Methods for the catalytic activation of metallic structured substrates
journal, January 2014


Thermomechanical, transport and anodic properties of perovskite-type (La0.75Sr0.25)0.95Cr1−xFexO3−δ
journal, May 2012


Tubular zirconia–yttria electrolyte membrane technology for oxygen separation
journal, December 2002