Patent ID: 6821316
Filing Date: 2004-11-23
Classification: B01D,F25J,Y02C

Abstract:
A method for treating a gas by adsorption, utilizing two adsorbers (R1, R2), comprising the steps of:i) shifting said adsorbers successively in an adsorption phase, at a high cycle pressure; ii) regenerating said adsorbers with depressurization; iii) repressurizing said adsorbers; and iv) paralleling said adsorbers wherein the paralleling step results in a total gas stream treatment that comprises the following steps: a) treating a first gas flow by at least one adsorber (R1) ending its adsorption phase; and b) treating a second gas flow to be treated by at least one other adsorber (R2) starting its adsorption phase, wherein said paralleling step is maintained for either a predetermined time interval longer than the switching time of the valves controlling the adsorbers establishing said paralleling step, or as long as the difference in temperature between that of the total stream and that of at least one of said flows is greater than a predetermined temperature threshold.