Process for producing oxygen by adsorption separation from air

Details Process for producing oxygen by adsorption separation from air Process for producing oxygen by adsorption separation from air

B - Operations, Transporting

01

D

B01D 53/04 (2006.01) B01D 53/047 (2006.01)

Patent

CA 2054199

A method of adsorption separation of gases of the kind which regenerates the adsorbant by pressure variation and uses two adsorbers, wherein the recompression stage includes at least one recompression stage using the oxygen produced, and a final recompression stage up to the high point of the cycle pressure using air intake without draw-off; and wherein the pressure high-point of the cycle is selected between 1.2 and 2 x 10<5> Pa and the pressure low-point is selected between 0.3-0.7 x 10<5> Pa, at least the final part of the desorption stage being carried out by pumping. The method is essentially relevant to the production of oxygen.

2054199 9112874 PCTABS00106 Dans un procédé de séparation de gaz par adsorption du type à régénération de l'adsorbant par variation de pression mettant en oeuvre deux adsorbeurs: la phase de recompression comprend au moins une étape de recompression par l'oxygène produit et une étape de recompression finale jusqu'à la pression haute du cycle par admission d'air sans soutirage; la pression haute du cycle est choisie entre 1,2 et 2 x 105 Pa et la pression basse est choisie entre 0,3 et 0,7 x 105 Pa, l'étape de désorption étant effectuée au moins dans sa partie finale par pompage. Application essentiellement à la production d'oxygène.

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