Composite mixed conductor membranes for producing oxygen

Details Composite mixed conductor membranes for producing oxygen Composite mixed conductor membranes for producing oxygen

1992-09-15

1993-08-31

Spitzer, Robert

Gas separation: apparatus

Apparatus for selective diffusion of gases

55524, 505 1, 505701, 505778, 505785, 95 54, B01D 5322, B01D 7102

Patent

active

052404803

ABSTRACT:
The present invention relates to novel multi-layer composite solid state membranes which are capable of separating oxygen from oxygen-containing gaseous mixtures at elevated temperatures. The membranes comprise a multicomponent metallic oxide porous layer having an average pore radius of less than about 10 micrometers and a multicomponent metallic oxide dense layer having no connected through porosity wherein the porous and dense layers are contiguous and such layers conduct electrons and oxygen ions at operating temperatures.

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