Refrigeration – Cryogenic treatment of gas or gas mixture – Separation of gas mixture
Patent
1996-08-13
1997-09-09
Kilner, Christopher
Refrigeration
Cryogenic treatment of gas or gas mixture
Separation of gas mixture
62647, 62650, 62900, F25J 304
Patent
active
056644388
ABSTRACT:
A cryogenic rectification system for producing low purity oxygen and high purity nitrogen, preferably at elevated pressure, wherein nitrogen-rich vapor from a higher pressure column is turboexpanded and condensed against lower pressure column intermediate liquid prior to being passed into the lower pressure column and low purity oxygen is produced in an auxiliary side column driven by fluid from the higher pressure column.
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Bonaquist Dante Patrick
Sattan Susan Marie
Kilner Christopher
Ktorides Stanley
Praxair Technology Inc.
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