Metal oxide membranes for gas separation

Gas separation: processes – Selective diffusion of gases – Selective diffusion of gases through substantially solid...

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96 4, 96 10, B01D 5322

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053424310

ABSTRACT:
A method for permformation of a microporous ceramic membrane onto a porous support includes placing a colloidal suspension of metal oxide particles on one side of the porous support and exposing the other side of the porous support to a drying stream of gas or a reactive gas stream so that the particles are deposited on the drying side of the support as a gel. The gel so deposited can be sintered to form a supported ceramic membrane having mean pore sizes less than 30 Angstroms and useful for ultrafiltration, reverse osmosis, or gas separation.

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