| 摘要 |
<p>PURPOSE:To provide the title apparatus capable of recovering a solvent with high efficiency even when the concn. of the solvent in gas to be treated is low. CONSTITUTION:The number of rotations of a rotor 1 composed of an activated carbon molded object is set to 3-10rph and the heating temp. of regenerating gas desorbing a solvent from the rotor 1 is set to 100-160 deg.C and the center angle of the regenerating zone and cooling zone in the rotor is set to 30-60 deg.. Further, the amount of the regenerating gas sent to the rotor 1 is set so that Q/V [wherein Q is the amount (Nm<3>/min) of regenerating gas and V is the volume (N) of the regenerating zone] becomes 0.1-0.25. Solvent-containing gas to be treated is conc. under the above-mentioned conditions and, further, the solvent is recovered by a dry recovery part equipped with a sheet heater.</p> |
