Distillation process using a mixing column to produce at least t

Details Distillation process using a mixing column to produce at least t Distillation process using a mixing column to produce at least t

1998-05-01

1999-02-02

Kilner, Christopher B.

Refrigeration

Cryogenic treatment of gas or gas mixture

Separation of gas mixture

62649, 62654, F25J 304

Patent

active

058650415

ABSTRACT:
A process is set forth for the cryogenic distillation of an air feed to produce at least two oxygen-rich gaseous streams having different oxygen purities. The process uses a mixing column system in addition to a distillation column system. A key to the process is that at least two oxygen-rich liquid streams having different oxygen purities are transferred from the distillation column system to the mixing column system in order to produce the oxygen-rich gaseous streams.

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