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:
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1150016
- Patent Number(s):
- 8795417
- Application Number:
- 13/644,666
- Assignee:
- Praxair Technology, Inc. (Danbury, CT)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
- DOE Contract Number:
- FC26-07NT43088
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2012 Oct 04
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Christie, Gervase Maxwell, and Lane, Jonathan A. Composite oxygen transport membrane. United States: N. p., 2014.
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. https://www.osti.gov/servlets/purl/1150016.
@article{osti_1150016,
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 = {2014},
month = {8}
}
Works referenced in this record:
Perovskite-type lanthanum chromium-based oxide films prepared by ultrasonic spray pyrolysis
journal, June 1995
- Furusaki, A.; Konno, H.; Furuichi, R.
- Journal of Materials Science, Vol. 30, Issue 11
Stoichiometric lanthanum chromite based ceramic interconnects with low sintering temperature
journal, March 2006
- Zhong, Z.
- Solid State Ionics, Vol. 177, Issue 7-8, p. 757-764