Method for producing a gas by adsorption

Details Method for producing a gas by adsorption Method for producing a gas by adsorption

B - Operations, Transporting

01

D

B01D 53/047 (2006.01) C01B 13/02 (2006.01)

Patent

CA 2163988

A first, high-pressure adsorber in a so-called "vacuum" cycle is depressurised by connecting it to the outlet of a second, low-pressure adsorber of the cycle simultaneously with counter-flow pumping for the second adsorber first and then the first adsorber, and repressurisation up to the high cycle pressure is performed using the process gas. Such a method is useful for producing oxygen from air.

Dans un cycle du type "à vide", la dépressurisation d'un premier adsorbeur à pression haute du cycle s'effectue par mise en communication avec la sortie d'un deuxième adsorbeur à pression basse du cycle, cette communication s'effectuant simultanément avec un pompage à contre-courant dans un premier temps pour le deuxième adsorbeur et dans un deuxième temps pour le premier adsorbeur, la recompression jusqu'à la pression haute de cycle s'effectuant par du gaz de production. Application à la production d'oxygène à partir de l'air.

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