Adsorption process and unit for the production of a gas by separation of a gaseous mixture

摘要

PCT No. PCT/FR94/00012 Sec. 371 Date Nov. 8, 1994 Sec. 102(e) Date Nov. 8, 1994 PCT Filed Jan. 4, 1994 PCT Pub. No. WO94/15699 PCT Pub. Date Jul. 21, 1994.In a pressure-swing adsorption-type gas separation unit, a distinct intermediate gas passageway is formed between a first water retaining bed (A) and a second separating adsorbent bed (B), a controlled heat flow being supplied to prevent the formation of a very cold area between both beds. The unit is particularly useful in the production of oxygen from air.