| 摘要 |
<p>1419676 Reactivating adsorbent materials CHEMISCHE FABRIK UETIKON 11 Oct 1973 [13 Oct 1972] 47629/73 Heading F4G A method of reactivating an adsorbent used for purifying, e.g. drying, liquid organic compounds and mixtures thereof, by passing a gaseous medium through a mass of granular adsorbent which is to be reactivated, the granular adsorbent being treated in an adsorber 3, comprises producing the reactivating gaseous medium from the liquid organic compound or mixture of compounds which have been purified. The method may be carried out in an apparatus which comprises a tank 1 for medium to be dried, the adsorber 3, a vapour generator 5 to which dried liquid passes from the adsorber 3 and a tank 7 for dried liquid. When the adsorber requires reactivating liquid in the vapour generator 5 is vaporized and passed back to the adsorber 3 and from thence to a separator 12, water separating out from the condensed wet liquid and being run off through a line 16. The wet liquid is returned to the tank 1. The liquid in the vapour generator may be heated indirectly by steam and then superheated before it passes to the adsorber. The adsorbing bed may be housed within the vapour generator (Fig. 2, not shown).</p> |
