Organic solvent recovery system and organic solvent recovery method

摘要

The organic solvent recovery system of the present invention comprises an organic solvent treatment device and a backup device, a switching part provided between the organic solvent treatment device and the backup device, for switching the discharge source of the treated gas from the organic solvent treatment device, And a control unit for controlling the switching unit to introduce the processed gas into the backup device after the gas is discharged to the outside at the beginning of the process.