| 摘要 |
PROBLEM TO BE SOLVED: To reduce the consumption of energy at the time of passing a dil. org. solvent gas through an adsorbent to adsorb the org. solvent desorbing the solvent with a heated gas and treating the desorbed concd. org. solvent gas in a combustor by adjusting the repetition cycle of adsorption and desorption of an adsorbing and concentrating device. SOLUTION: A dil. org. solvent-contg. gas is passed through the adsorption part 2a of an adsorber 2, adsorbed, purified and discharged. The adsorbent having adsorbed the solvent is transferred to a desorption part 2b and subjected to desorption and regenerated with a small amt. of air heated by a heat exchanger 4 and heater 5. The air temp. is adjusted by controlling the heater 5 based on the outputs of the temp. detection part 11a and temp. controller 9a. The org. solvent is then heated by a heat exchanger 7 and heater 8a as a concd. gas, oxidized and decomposed by a catalyst 8b and purified. In this case, the outlet temp. of a device 8 detected by a temp. detector 11c is transmitted to a rotation cycle adjuster 10 by a temp. indicator 9c, and the rotation cycle of the adsorber 2 is adjusted. |
