Refrigeration – Processes – Circulating external gas
Patent
1993-02-16
1994-05-10
Capossela, Ronald C.
Refrigeration
Processes
Circulating external gas
62 24, F25J 304
Patent
active
053097190
ABSTRACT:
A process is set forth for producing a krypton/xenon enriched stream from a cryogenic nitrogen generator. Distillation of the oxygen product stream at the top of the low pressure column is suggested in order to concentrate krypton and xenon while rejecting the majority of methane in the oxygen product stream.
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Agrawal Rakesh
Feldman Steven L.
Air Products and Chemicals Inc.
Capossela Ronald C.
Marsh William F.
Simmons James C.
Wolff Robert J.
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