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

Patent ·
OSTI ID:921491

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.

Research Organization:
Air Products and Chemicals, Inc. (Allentown, PA)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-98FT40343
Assignee:
Air Products and Chemicals, Inc. (Allentown, PA)
Patent Number(s):
7,311,755
Application Number:
10/943,574
OSTI ID:
921491
Country of Publication:
United States
Language:
English

References (4)

Chemical Expansivity of Electrochemical Ceramics journal September 2001
Use of the Rigid Band Formalism to Interpret the Relationship between O Chemical Potential and Electron Concentration in La 1 x Sr x CoO 3 δ journal September 1996
Prospects and problems of dense oxygen permeable membranes journal February 2000
Creep of ceramics: Part 1 Mechanical characteristics journal January 1983