METHOD AND DEVICE FOR RECOVERING SOLVENT IN EXHAUST

摘要

PURPOSE:To easily remove and recover the solvent in an exhaust by cooling the exhaust, introducing the cooled exhaust into a solvent adsorbing means to adsorb the solvent, depressurizing the closed space of the solvent adsorbing means to volatilize he adsorbed solvent and cooling, liquefying and recovering the solvent. CONSTITUTION:When the solvent is recovered from the exhaust, the exhaust is transiently introduced into a first cleaning means 2 and cooled, and the cooled exhaust is introduced into the solvent adsorbing means 3 to adsorb the solvent on the adsorbent of the means 3. the closed space of the means 3 is depressurized to volatilize the solvent from the adsorbent, and the volatilized solvent is introduced into a second cooling means 8, cooled, liquefied, and recovered in a recovery tank 10. As a result, the solvent is easily removed from the adsorbent by vacuum suction, and the desorbed solvent is easily recovered.