Pressurizing with and recovering helium

Details Pressurizing with and recovering helium Pressurizing with and recovering helium

B - Operations, Transporting

01

D

B01D 53/22 (2006.01) B01D 53/26 (2006.01) C01B 23/00 (2006.01) G01M 3/20 (2006.01)

Patent

CA 2121743

- 18 - PRESSURIZING WITH AND RECOVERING HELIUM ABSTRACT OF THE DISCLOSURE A process and system for pressurizing a vessel for integrity testing with gas comprising helium, recovering the gas comprising helium, and purifying the gas comprising helium for reuse. The process for purifying the gas stream comprising helium comprises drying the gas stream; separating the dried gas stream in a membrane separator stage into a helium-enriched permeate product stream and a helium-depleted raffinate stream; recovering helium in the raffinate stream in a membrane stripper stage thereby producing a purge stream; and purging water from the dryer with the purge stream.

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