Dual column cryogenic rectification system for producing...

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

F - Mech Eng,Light,Heat,Weapons

25

J

F25J 3/04 (2006.01)

Patent

CA 2246098

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.

Système de rectification cryogénique à double colonne pour la production d'azote de grande pureté à pression élevée; la vapeur provenant de la partie supérieure d'une première colonne est traitée dans un échangeur thermique intermédiaire d'une seconde colonne, et la vapeur riche en oxygène issue de la seconde colonne passe par un turbodétendeur qui produit la réfrigération pour la séparation.

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