Dual column cryogenic rectification system for producing nitroge

Details Dual column cryogenic rectification system for producing nitroge Dual column cryogenic rectification system for producing nitroge

1997-08-29

1998-11-17

Capossela, Ronald

Refrigeration

Cryogenic treatment of gas or gas mixture

Separation of gas mixture

F25J 300

Patent

active

058361758

ABSTRACT:
A dual column cryogenic rectification system for producing high purity nitrogen at elevated pressure wherein top vapor from a first column is processed in an intermediate heat exchanger of a second column and oxygen-rich vapor from the second column is turboexpanded to generate refrigeration for the separation.

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