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Control of differential strain during heating and cooling of mixed conducting metal oxide membranes

United States Patent

7,311,755
December 25, 2007
View the Complete Patent at the US Patent & Trademark Office
Method of operating an oxygen-permeable mixed conducting membrane having an oxidant feed side and a permeate side, which method comprises controlling the differential strain between the oxidant feed side and the permeate side by varying either or both of the oxygen partial pressure and the total gas pressure on either or both of the oxidant feed side and the permeate side of the membrane while changing the temperature of the membrane from a first temperature to a second temperature.
Carolan; Michael Francis (Allentown, PA)
Air Products and Chemicals, Inc. (Allentown, PA)
10/ 943,574
20060060080
September 17, 2004
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with government support under Contract No. DE-FC26-98FT40343 between Air Products and Chemicals, Inc. and the U.S. Department of Energy. The Government has certain rights to this invention.