| 摘要 |
A method and device for filtering substances mixed with gaseous effluents are described. The method includes circulating the effluents in a device comprising a bank of adjacent purifier units (4a - 4n) in a housing (3), each containing materials adsorbing said substances. To restore the purification capacity of the purifier units (4), when the adsorbent filler therein is saturated, said units are selectively and successively isolated by means of a movable manifold (8) for a period sufficient for the heat desorption thereof and for the transfer of the substances by an auxiliary fluid (a fraction of the circulating effluents, for example, or a gas selectively fed into the purifier unit to be desorbed by an auxiliary circuit), and the substances combined with the auxiliary fluid are optionally transferred to a reactor (10) adapted for their disposal. The invention is useful for concentrating and purifying pollutant materials such as VOCs or for dehumidifying gases.
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