Refrigeration – Processes – Circulating external gas
Patent
1990-06-19
1991-05-28
Capossela, Ronald C.
Refrigeration
Processes
Circulating external gas
62 24, F25J 304
Patent
active
050191446
ABSTRACT:
A cryogenic rectification system characterized by a hybrid argon column having trays in the lower portion and packing in the upper portion whereby the argon column is operated at a lower pressure thus enabling improved argon recovery while maintaining the pressure sufficiently high at the lower end of the argon column to enable fluid flow back to the main column system without need for pressurization.
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Dray James R.
Lockett Michael J.
Victor Richard A.
Capossela Ronald C.
Ktorides Stanley
Union Carbide Industrial Gases Technology Corporation
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