Patent ID: 7297183
Filing Date: 2007-11-20
Classification: B01D,C01B

Abstract:
1. A hydrogen purification device, comprising: a sealed enclosure defining a pressure vessel with an internal compartment, wherein the device is configured to receive into the compartment a mixed gas stream comprising hydrogen gas and other gases, and to produce therefrom a hydrogen-rich permeate stream containing at least substantially pure hydrogen gas and a byproduct stream containing at least a substantial portion of the other gases; and a hydrogen-selective membrane permanently and directly secured to the enclosure to form a seal therewith and extending within the compartment to divide the compartment into a mixed gas region and a permeate region, wherein the membrane includes a mixed gas surface configured to be contacted by the mixed gas stream and a permeate surface generally opposed to the mixed gas surface, wherein the membrane is configured to selectively allow a first portion of the mixed gas stream to pass through the membrane from the mixed gas region to the permeate region and to selectively prohibit a second portion of the mixed gas stream from passing through the membrane from the mixed gas region to the permeate region, and wherein the permeate stream is formed from the first portion of the mixed gas stream, and the byproduct stream is formed from the second portion of the mixed gas stream.