Patent ID: 6723156
Filing Date: 2004-04-20
Classification: B01D,B01J,C01B,C12F,H01M,Y02E,Y02P,Y10S

Abstract:
A hydrogen purification device, comprising:an enclosure having an internal compartment in which at least one hydrogen-selective membrane is supported and adapted to receive under a pressure of at least 50 psi a mixed gas stream containing hydrogen gas and other gases, wherein the at least one hydrogen-selective membrane is adapted to separate the mixed gas stream into at least one hydrogen-rich stream that is formed from a portion of the mixed gas stream that passes through the at least one hydrogen-selective membrane and at least one byproduct stream that is formed from a portion of the mixed gas stream that does not pass through the at least one hydrogen-selective membrane, wherein the at least one hydrogen-rich stream contains hydrogen having a greater purity than the mixed gas stream, and further wherein the at least one hydrogen-selective membrane is at least substantially comprised of a primary component selected from the group consisting of palladium and a palladium alloy and a secondary component consisting of approximately 5-250 ppm carbon.