Composite metal membrane for hydrogen extraction

Details Composite metal membrane for hydrogen extraction Composite metal membrane for hydrogen extraction

1990-06-22

1993-06-01

Langel, Wayne

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Hydrogen component

55 16, 55158, 4236481, 423659, B01D 5322, B01D 7102, C01B 350

Patent

active

052157296

ABSTRACT:
A membrane (14) for extracting hydrogen from fluid streams containing hydrogen consists essentially of a first layer (16) of a refractory metal or alloy which is permeable to hydrogen and has first and second surfaces (18,20). A second layer (22) is electroless or electrolytically deposited over the first surface (18) and attached thereto. A third layer (24) is similarly deposited over the other refractory surface (20), the second and third layers (22,24) consisting essentially of palladium, palladium alloys or platinum. A modification of this, for use in some applications, is the above membrane coated on only one surface with palladium, palladium alloys or platinum.

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