Patent ID: 7662218
Filing Date: 2010-02-16
Classification: B01D,C01B,C23F,C25D,Y10S,Y10T

Abstract:
1. A high-pressure hydrogen-purification membrane for hydrogen permeation at a pressure of 0.40 MPa or more, said membrane comprising a porous support substrate having a plurality of pores and a Pd alloy film joined to one surface of said porous support substrate, wherein: said membrane is configured to allow for permeation of hydrogen comprised in a reformed gas at a pressure of 0.40 MPa or more, each pore in said porous support substrate is configured to have a narrowest portion therein, between a thickness T of said porous support substrate, an opening diameter D between the opening diameter D a total opening area of the pores on the side joined to said Pd alloy film accounts for 20 to 80% of an area of said porous support substrate.