F - Mech Eng,Light,Heat,Weapons – 25 – J
Patent
F - Mech Eng,Light,Heat,Weapons
25
J
162/122
F25J 3/04 (2006.01) F25J 5/00 (2006.01)
Patent
CA 1174587
ABSTRACT A process is described in which gaseous nitrogen is recovered from air in a cryogenic air separation unit containing a single distillation column wherein the product nitrogen is compressed and a portion of the compressed nitrogen is recycled to the column to provide reboil in the bottom of said column and reflux at the top of said column. A waste crude oxygen stream is expanded to provide refrigeration for the air separation unit.
413848
Cormier Thomas E.
Patel Suresh U.
Wilson Keith B.
Air Products And Chemicals Inc.
Mcfadden Fincham
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