Air separation method and apparatus

Details Air separation method and apparatus Air separation method and apparatus

F - Mech Eng,Light,Heat,Weapons

25

J

F25J 3/04 (2006.01)

Patent

CA 2202010

A method and apparatus for separating air in which an oxygen containing vapor stream is removed from a single column nitrogen generator and then divided into two subsidiary streams. The two subsidiary streams are condensed and then combined for stripping within a stripping column to produce ultra-high purity liquid oxygen as a column bottoms. One of the two subsidiary streams is condensed in a reboiler and a bottom region of the stripping column. The other of the two subsidiary streams is condensed within a head condenser used in connection with the nitrogen strippingcolumn.

Méthode et appareil pour le fractionnement de l'air, où la vapeur renfermant de l'oxygène est extraite d'un générateur d'azote liquide à colonne simple, puis séparée en deux flux secondaires. Ces deux flux sont condensés, puis combinés pour purification dans une colonne de stripping, en donnant un oxygène liquide ultra-pur sous forme de bas de colonne. L'un des deux flux secondaires est condensé dans un rebouilleur et dans le bas de la colonne de stripping. L'autre flux secondaire est condensé à l'intérieur d'un condensateur de tête utilisé en connexion avec la colonne de stripping de l'azote.

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