B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
183/27
B01J 20/34 (2006.01) B01D 53/04 (2006.01)
Patent
CA 1188633
ABSTRACT In the recovery of substances such as solvents adsorbed on sorption agents, the water present means that the solvents have to be worked up. Anhydrous recovery can be achieved if water is removed from the cycled gaseous desorption agent. An adsorptive dryer incorporated in the circuit stores this water, which, after the end of the desorption phase is available once more for remoistening the activated charcoal. This remoistening of the activated char- coal prevents a spontaneous ignition of the dry charcoal. In order to be able to transfer the heat as well as transfer the water from the sorption agent to the adsorptive dryer and back again, adsorptive dryers and regenerative heat stores are connected in series in the desorption circuit, wherein the cooler recovering the solvent by condensation is connected in front of both these structural elements. By means of this arrangement the heat of adsorption re- leased during the adsorption of water in the adsorptive dryer contributes to reducing the external energy requirement for the desorption. Conversely, the energy required for the desorption of the dryer becomes available during the cooling of the sorption agent. Excess thermal energy is thereby taken up by the regenerative heat store.
419675
Fetherstonhaugh & Co.
Rekuperator Kg Dr.-Ing. Schack & Co.
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