| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To efficiently recover a solvent from a gas containing a low boiling point organic solvent with a boiling point of 40-110°C by using cleaning air as a purging gas. <P>SOLUTION: To recover the low boiling point organic solvent with a boiling point of 40-110°C contained in exhaust gas by using a pair of adsorption-desorption vessels charged with an adsorbent, a process of switching from adsorption to desorption and vice versa in the pair of adsorption-desorption vessels in 5-20 minutes, a process of feeding the gas containing the organic solvent to the adsorption side of the adsorption-desorption vessels, a process of feeding a purging gas feeding cleaning air in a vacuum state as the purging gas for desorption to the adsorption-desorption vessels, and a process of recovering a solvent by liquefying the desorbed solvent in the purging gas are included. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
