| 摘要 |
<p>PURPOSE:To continuously treat even gas to be treated of high concentration for a long time without making equipment large-sized and causing increase in cost by circulating and moving a solvent adsorbing sheet and simultaneously operating an adsorbing means and a desorbing means. CONSTITUTION:A moving means for turning and moving a ring shaped solvent adsorbing sheet 3 wound along a circulating route, an adsorbing means where gas to be treated contg. solvent is fed so that the gas permeates through the solvent adsorbing sheet 3 at the set place in the circulating route in the thickness direction of the sheet to adsorb solvent on the solvent adsorbing sheet 3 and a desorbing means where desorbing gas is fed so that it permeates through the solvent adsorbing sheet 3 at the set place other than the preceding one in the thickness direction of the sheet to desorb solvent from the solvent adsorbing sheet 3 are provided. Further, to constitute the solvent adsorbing sheet 3, felt 3A of activated carbon is installed and at both the longitudinal ends of the felt 3A, a fastener 6 for connecting to each other both the ends positioned in the width direction is installed.</p> |
