Process for removing oxygen from crude argon

Details Process for removing oxygen from crude argon Process for removing oxygen from crude argon

C - Chemistry, Metallurgy

01

B

162/104

C01B 23/00 (2006.01) B01D 53/22 (2006.01) B01D 53/32 (2006.01) B01D 61/44 (2006.01) F25J 3/02 (2006.01) F25J 3/04 (2006.01)

Patent

CA 2042852

A process is provided for purifying argon gas, especially an argon gas stream obtained by cryogenically separating air, wherein the argon gas is heated and compressed, and then permeated through a solid electrolyte membrane selective to the permeation of oxygen over other components of the gas, and removing oxygen from the argon by selective permeation of oxygen through the membrane. The purified argon can then be distilled to remove other components such as nitrogen.

Un procédé est offert pour purifier l'argon, et particulièrement un courant d'argon obtenu par séparation cryogénique de l'air, où l'argon est chauffé et comprimé, puis soumis à une perméation à travers une membrane électrolytique solide sélective pour l'oxygène de préférence à d'autres constituants du gaz, et par élimination de l'oxygène de l'argon par perméation sélective de l'oxygène à travers la membrane. L'argon purifié peut alors être distillé pour enlever les autres constituants comme l'azote.

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