ORGANIC SOLVENT RECOVERY SYSTEM

• Main Authors: SUGIURA TSUTOMU, KAWADA KAZUYUKI
• Format: Patent
• Language: English
• Published: 26.07.2012
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

PROBLEM TO BE SOLVED: To provide an organic solvent recovery system which can remove only an exhaust gas from which the organic solvent is already sufficiently adsorbed and eliminated.SOLUTION: This system comprises an organic solvent enriching device 200 which includes an adsorbing element which can adsorb and eliminate the organic solvent reversibly, and a cooling recovery device which condenses the organic solvent by cooling the exhaust gas whose organic solvent is enriched by the organic solvent enriching device 200 and thus recovers the organic solvent. The adsorbing element eliminates the adsorbed organic solvent by circulating the exhaust gas at a higher temperature than preset, and adsorbs the organic solvent contained in the exhaust gas by circulating the exhaust gas at a lower temperature than preset. In addition, the organic solvent enriching device 200 includes an elimination part through which the exhaust gas at a higher temperature than preset is circulated, and an adsorption part through which the exhaust gas at a lower temperature than preset, is circulated. The organic solvent recovery system removes to the outside of the system only the exhaust gas G10a whose organic solvent shows a lower concentration than preset, with regard to the exhaust gas, circulated past the adsorption part, at a lower temperature than preset.