Process for capturing nitrogen from air using gas separation...

Details Process for capturing nitrogen from air using gas separation... Process for capturing nitrogen from air using gas separation...

C - Chemistry, Metallurgy

01

B

183/2

C01B 21/04 (2006.01) B01D 53/22 (2006.01)

Patent

CA 2005066

Nitrogen gas of high purity is produced from compressed air by contacting the air with a first gas membrane separator permitting oxygen to permeate therethrough selectively while restraining the passage of nitrogen. The nonpermeant gas is then brought into contact with a second gas membrane separator of similar construction. The use of the serially arranged separators provides nitrogen gas with very low levels of oxygen.

e l'azote gazeux d'une grande pureté est produit à partir d'air comprimé par mise en contact de l'air avec un premier séparateur de gaz à membrane permettant à l'oxygène de passer sélectivement à travers tout en retenant l'azote. Le gaz qui ne peut traverser la membrane est alors mis en contact avec un second séparateur de gaz à membrane de construction similaire. L'utilisation des séparateurs agencés en série donne de l'azote gazeux à très faible niveau d'oxygène.

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