DEVICE FOR RECOVERING SOLVENT-CONTAINING GAS

摘要

PURPOSE:To increase the recovery efficiency of the entire recovery device without increasing the load of a concentrator even if the recovery efficiency of a solvent recovery means is low by returning the waste gas from the recovery means to a circulating line. CONSTITUTION:Rotors 1 consisting of a honeycomb formed body of activated carbon are unidirectionally rotated around the center of rotation parallel to the gas passing direction. A means 7 for supplying a dil. solvent-contg. gas and a cooling means 1b are also provided. The gas to be introduced into the rotor 1 is heated by a heating means 14 set in a line 12 for circulating and supplying the regenerated gas to the rotor 1. A solvent is recovered from a concd. solvent gas by a solvent recovery means 32. The waste gas from the means 32 is supplied as a regenerating gas by a regenerating gas supply means 33 on the upstream side of the heating means 14 in the line 12. Furthermore, a part of the regenerated gas is extracted from a position on the upstream side of the regenerating gas supply position of the means 33 to the line 12 and supplied to the means 32 by a concd. gas supply means 15.