GAS TREATMENT SYSTEM AND GAS TREATMENT METHOD

摘要

PROBLEM TO BE SOLVED: To provide a gas treatment system capable of efficiently and continuously perform adsorption and desorption of a gas containing an organic solvent by using an adsorbent, and to provide a gas treatment method using the gas treatment system.SOLUTION: The gas treatment system includes: a treatment gas inlet line 32 which introduces a treatment gas; a pre-treatment adsorption tank 29 provided in the treatment gas inlet line 32 and accommodating a pre-treatment adsorbent 30; and a return gas line 28 which returns a return gas pushed out of a condenser and/or a separator by a desorption gas to an upstream side of the treatment gas inlet line 32 than the pre-treatment adsorption tank 29.