Refrigeration – Cryogenic treatment of gas or gas mixture – Separation of gas mixture
Patent
1997-05-19
1998-07-14
Capossela, Ronald C.
Refrigeration
Cryogenic treatment of gas or gas mixture
Separation of gas mixture
62924, F25B 100
Patent
active
057786992
ABSTRACT:
An installation for the production of argon comprising a double column (1, 3) and an argon purification column (5). An auxiliary column (9) serves to effect the nitrogen-oxygen separation, and is supplied by a stream from the low pressure column (3). Therefore, nitrogen does not contaminate the stream sent to the argon purification column (5).
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Capossela Ronald C.
L'Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation de
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