Supported gas separation membrane and method

摘要

A method of making a gas separation membrane system by providing a porous support material having deposited thereon a metal membrane layer and imposing upon the surface thereof certain surface characteristics that provide for surface activation that enhances the placement thereon of a subsequent metal membrane layer. The gas separation membrane system is useful in the separation of hydrogen from hydrogen-containing gas streams.

主权项

1. A method of making a composite gas separation module, wherein said method comprises:
providing a porous support having a metal membrane layer thereon with a surface; imposing onto said surface and said metal membrane layer a surface morphology having a maximum peak height roughness parameter in the range of from 0.5 to 10 μm thereby providing an activated surface having enhanced activation properties, without chemical treatment of said surface, for the placement thereon of a subsequent metal membrane layer; placing said subsequent metal membrane layer upon said activated surface; and annealing said subsequent metal membrane layer to provide an annealed metal layer.