METHOD FOR PRODUCING OXYGEN BY ADSORPTION SEPARATION FROM AIR

摘要

PCT No. PCT/FR91/00164 Sec. 371 Date Dec. 27, 1991 Sec. 102(e) Date Dec. 27, 1991 PCT Filed Mar. 1, 1991 PCT Pub. No. WO91/12874 PCT Pub. Date Sep. 5, 1991.A method of adsorption separation of gases of the kind which regenerates the adsorbant by pressure viariation and used 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 x105 Pa and the pressure low-point is selected between 0.3-0.7x105 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.