Patent ID: 6332915
Filing Date: 2001-12-25
Classification: B01D

Abstract:
Method of separating a gas mixture, which comprises:providing a PSA plant operating in a production cycle, and comprising at least one adsorber and several valves, each valve having an operating time;supplying to said plant said gas mixture to be separated so as to produce a gas stream comprising more than 50% of at least one gas selected from the group consisting of oxygen, nitrogen and hydrogen; andwherein the average operating time of the valves is such that0.5 s<.mu.<2 sand the operating time (.DELTA.t) of each valve is such that:.mu.-x<.DELTA.t<.mu.+x, with 0.1 s<x<0.5 s; andthe operating times (.DELTA.t) of at least two of said valves being not equal.