Global to push GA events into
skip to main content

Title: Composite oxygen transport membrane

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

Works referenced in this record:

Ceramic membrane reformer
patent, November 2000

Process for producing a syngas
patent, June 2002

Hydrogen production method
patent, August 2004

Composite oxygen ion transport membrane
patent, July 2009

Stackable structural reactor
patent, March 2011

Staged membrane oxidation reactor system
patent, September 2012

Catalyst containing oxygen transport membrane
patent, December 2012

Staged membrane oxidation reactor system
patent, April 2013

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

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
  • Montebelli, Andrea; Visconti, Carlo Giorgio; Groppi, Gianpiero
  • Catalysis Science & Technology, Vol. 4, Issue 9, p. 2846-2870
  • DOI: 10.1039/C4CY00179F

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

Stoichiometric lanthanum chromite based ceramic interconnects with low sintering temperature
journal, March 2006