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AssigneePraxair Technology, Inc.
InventorsThomas R. Schulte, Carl J. Heim, Vladimir T. Gorjaczkowski, Salvatore Giglia
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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.
A process for purifying a gas stream comprising helium and air constituents, said process comprising:
A helium purification system for purifying a gas stream comprising helium and air constituents including water, said system comprising:
Dependencies are inferred from the claim text.