Process to produce a krypton/xenon enriched stream directly...

Details Process to produce a krypton/xenon enriched stream directly... Process to produce a krypton/xenon enriched stream directly...

F - Mech Eng,Light,Heat,Weapons

25

J

F25J 3/04 (2006.01)

Patent

CA 2115297

A process is set forth for producing a krypton/xenon enriched stream directly from the main air distillation column in a cryogenic air separation process. A column bypass is suggested in the bottom few trays of the low pressure column in order to concentrate krypton and xenon in the sump while rejecting the majority of methane in the gaseous oxygen product.

Procédé pour produire un écoulement enrichi de krypton/xénon directement de la colonne principale de distillation de l'air dans un processus cryogénique de séparation de l'air. Une conduite de dérivation de la colonne est proposée parmi les plateaux inférieurs de la colonne à basse pression afin de concentrer le krypton et le xénon dans le collecteur tout en rejetant la majorité du méthane dans le produit d'oxygène gazeux.

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