Patent ID: 6358303
Filing Date: 2002-03-19
Classification: B01D,F24F

Abstract:
A gasborne component condensing apparatus for condensing condensation-target component contained in treatment-object gas by effecting an adsorbing step for adsorbing the condensation-target component in the object gas to an adsorbent layer and a desorbing step for desorbing the condensation-target component adsorbed to the adsorbent layer at the adsorbing step into desorbing gas by causing the desorbing gas smaller in the amount and higher in the temperature than the object gas to pass the adsorbent layer after the adsorbing step, the apparatus effecting the adsorbing step and the desorbing step for a plurality of cycles, so that the desorbing gas delivered from the adsorbent layer and containing the condensation-target component desorbed during the desorbing step is collected as a condensed gas product;wherein said condensing apparatus comprises gas sorting means for sorting the desorbing gas delivered from the adsorbent layer during said desorbing step between an earlier passage gas which passed the adsorbent layer at an earlier stage of the desorbing step and a later passage gas which passed the adsorbent layer at a later stage of the desorbing step and for subsequently causing said earlier passage gas, as a portion of the object gas, to pass the adsorbent layer again at a subsequent adsorbing step while allowing said later passage gas to be collected directly as the condensed gas product; and a gas sorting position between the earlier passage gas and the later passage gas of said gas sorting means is adjustable, so that both the concentration and the temperature of the target component may be adjusted.