Cryogenic air separation with combined prepurifier regenerators

Details Cryogenic air separation with combined prepurifier regenerators Cryogenic air separation with combined prepurifier regenerators

F - Mech Eng,Light,Heat,Weapons

25

J

F25J 3/04 (2006.01) F25J 5/00 (2006.01)

Patent

CA 2244313

A method is provided for separation of air by cryogenic rectification comprising compressing feed air, passing the compressed feed air through a prepurifier wherein the air is substantially cleaned of impurities, thereafter cooling the cleaned air in a cooled regenerator and then introducing it into a cryogenic air separation facility wherein it is separated into nitrogen-rich and oxygen-rich components.

L'invention porte sur une méthode de séparation d'air par rectification cryogénique. La méthode consiste à compresser l'air d'alimentation, à passer cet air à travers un prépurificateur où les impuretés qu'il contient sont essentiellement éliminées, puis à refroidir l'air nettoyé dans un régénérateur refroidi et à introduire l'air dans une installation de séparation d'air cryogénique afin d'obtenir un composant riche en azote et un composant riche en oxygène.

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