| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic solvent recovery system having a configuration allowing for reduction of an energy for use in an organic solvent recovery system and allowing for efficient recovery of the organic solvent.SOLUTION: There is provided the organic solvent recovery system recovering organic solvent from exhaust gas which contains organic solvent exhausted from production equipment and has a temperature of 50 to 200°C. In the organic solvent recovery system, the exhaust gas is introduced to a cooler which condenses and recovers the organic solvent with a cooling operation and is exhausted as exhaust gas of which the concentration of the organic solvent is reduced, a part of the exhaust gas of which the concentration of the organic solvent is reduced is circulated by being returned to production equipment, the remaining of the exhaust gas of which the concentration of the organic solvent is reduced is introduced to an adsorption part having an adsorption element, of an organic solvent concentration device, concentration of the organic solvent is further reduced and exhausted, the exhaust gas is concentrated by the organic solvent concentration device and exhausted from a desorption part as concentrated gas and the concentrated gas is introduced to the cooler.SELECTED DRAWING: Figure 1 |
