REDUCTION OF AIR CONTAMINATE EMISSIONS FROM STORAGE VESSELS

摘要

A method and apparatus is disclosed for reducing the emission of volatilized constituents from vessels, particularly vessels used to transport liquid solutions, as they are being filled with a liquid solution containing the volatile constituent. The apparatus comprises a packed column having universal means to temporarily mount the column in a vertical position over a vapor discharge port of the vessel with means to introduce solvent into the column in countercurrent flow therein to the vessel vapor effluent. The solvent from the column enriched with the volatile constituent is discharged directly into the vessel and the purified gas effluent is released to the atmosphere.