| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a non-draining adsorption tower, which requires no drainage treatment and is inexpensive, and in which the running cost is low. <P>SOLUTION: A non-draining adsorption recovery device comprises a plurality of adsorption towers provided with an adsorbent continuously carrying out an adsorption of an organic solvent in a gas to be treated and a desorption of the adsorbed organic solvent alternately, an air blast line sending the gas to be treated, which contains the organic solvent, to the adsorption tower by a blower, a desorption means sending a carrier gas to the adsorption tower and at the same time, desorbing the organic solvent from the adsorbent, and a recovery line concentrating, separating, and recovering the organic solvent after the desorption, and is characterized in that a return means returning an aqueous phase recovered and separated together with the organic solvent to the air blast line so as to vaporize is provided. <P>COPYRIGHT: (C)2012,JPO&INPIT |
