Ion transport membranes with catalyzed mixed conducting porous layer
AssigneeAir Products and Chemicals, Inc.
InventorsMichael F. Carolan, Paul N. Dyer
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Abstract
The present invention relates to surface catalyzed ion transport membranes which demonstrate superior oxygen flux. The membranes comprise a porous mixed conducting multicomponent metallic oxide layer having a first surface onto which a catalyst is deposited and a second surface which is contiguous with a dense mixed conducting multicomponent metallic oxide layer. Suitable catalysts to be deposited onto the porous mixed conducting layer include one or more metals or oxides of metals selected from Groups II, V, VI, VII, VIII, IX, X, XI, XV and the F Block lanthanides of the Periodic Table of the Elements. The claimed membranes are capable of separating oxygen from oxygen-containing gaseous mixtures.
Claims40
An ion transport membrane comprising a porous mixed conducting multicomponent metallic oxide layer having a first surface which is coated with a catalyst and a second surface which is contiguous with a dense mixed conducting multicomponent metallic oxide layer.
An ion transport membrane comprising a mixed conducting multicomponent metallic oxide porous layer having a first surface and a second surface wherein the first surface is coated with a metallic catalyst and the second surface is contiguous with a first surface of a dense mixed conducting multicomponent metallic oxide layer and a non-catalyzed porous layer which is contiguous with a second surface of the dense mixed conducting multicomponent metallic oxide layer.
An ion transport membrane comprising a mixed conducting multicomponent metallic oxide porous layer having a first surface and a second surface wherein the first surface is coated with a metallic catalyst and the second surface is contiguous with a first surface of a dense mixed conducting multicomponent metallic oxide layer and a plurality of non-catalyzed porous layers which are contiguous with a second surface of the dense mixed conducting multicomponent metallic oxide layer.
Dependencies are inferred from the claim text.