Method for oxygenating gases, systems suited therefor and...

C - Chemistry – Metallurgy – 01 – B

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C01B 13/02 (2006.01) B01D 53/22 (2006.01) B01D 71/02 (2006.01)

Patent

CA 2597603

The invention relates to a method for increasing the content of oxygen in gases, which contain both oxygen and nitrogen, in a separating device that has an interior separated into a substrate chamber and a permeate chamber by a ceramic membrane that guides oxygen. The method involves the introduction of purge gas containing oxygen and nitrogen into the permeate chamber and the setting of a pressure inside the substrate chamber so that the oxygen partial pressure in the substrate chamber and purge chamber causes oxygen to pass through the ceramic membrane. The method is characterized by having a high operational reliability.

L'invention concerne un procédé d'enrichissement de la teneur en oxygène dans des gaz renfermant de l'oxygène et de l'azote, dans un dispositif de séparation présentant un compartiment intérieur qui est séparé en une chambre de substrat et une chambre de perméat, par une membrane céramique conduisant l'oxygène. Le procédé comprend l'introduction d'un gaz de rinçage renfermant de l'oxygène et de l'azote, dans la chambre de perméat, et le réglage d'une pression dans la chambre de substrat, telle que la pression partielle d'oxygène dans la chambre de substrat et de rinçage provoque le transport d'oxygène à travers la membrane céramique. Le procédé est remarquable en ce qu'il présente une sécurité de fonctionnement élevée.

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