Refrigeration – Processes – Circulating external gas
Patent
1991-06-24
1992-07-28
Bennet, Henry A.
Refrigeration
Processes
Circulating external gas
62 24, 423262, F25J 304, C01B 2300
Patent
active
051337908
ABSTRACT:
A cryogenic rectification method employing rectification over a defined height within the lower pressure column of a double column system which reduces the nitrogen concentration of an argon, nitrogen, oxygen mixture while maintaining the argon concentration at or near its maximum enabling production of nitrogen-free argon directly from the argon column system.
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Bianchi John R.
Bonaquist Dante P.
Victor Richard A.
Bennet Henry A.
Kilner Christopher B.
Ktorides Stanley
Union Carbide Industrial Gases Technology Corporation
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