| 摘要 |
<p>PURPOSE:To prevent the generation of white smoke by introducing ordinary- temp. air under pressure into an adsorption and desorption can housed with activated carbon desorbed by steam and extruding the residual steam to a condenser side to condense it and feeding noncondensed gas to an adsorbing stage. CONSTITUTION:The gas to be treated is fed to an adsorption can 5 via an air filter 1 and solvents are adsorbed, and the gas is discharged as clean air 7. Steam for desorption is blown into adsorption can 6 and solvents are desorbed from activated carbon 16 and fed to a condenser 9, and vapor is condensed and recovered. After finishing the desorbing stage, compressed low-pressure air is fed to the adsorption can 6 through an automatic valve 13, residual steam is extruded to the condenser 9 to condense steam, and noncondensed gas is returned to the can of the adsorption side via an air extraction line 14 and treated.</p> |
