Patent ID: 8163064
Filing Date: 2012-04-24
Classification: B01D,Y10T

Abstract:
1. A method for providing a leak-proof membrane element ( 1 ) for the selective separation or cleaning of gas of the type wherein a metal foil (membrane) ( 3 ) or such metal foil coated on one or both sides thereof with other materials (barrier/protective layers) ( 43 , 44 ), and being selectively permeable for specific gases, is deposited onto a supporting stock (substrate) ( 2 , 20 ) exhibiting a high gas flux and being made of metal, ceramic, polymer, or combinations thereof, and wherein connection means ( 4 , 21 , 34 ) are provided on the ends/edges of the substrate allowing the membrane element to be installed in a housing, characterized in that the method comprises: a) winding or depositing with overlapping joints ( b) then sealing the ends/edges of the substrate by fitting connection means ( c) then joining by diffusion bonding the overlapping joints (