Activated carbons regenerated by vacuum + condensation of desorbed
• No absorbent washing required.
• Direct monitoring of recovered HC.
The Vapor Recovery Unit is composed by two activated carbon beds: one in operation, while the second is regenerated by vacuum; vapors of HC are adsorbed by activated carbons and air, free of hydrocarbons, is discharged to atmosphere.
The desorbed hydrocarbons are sent to a two section exchanger (one section is in operation while the other is defrosting or in stand-by) cooled by a screw Freon compressor, the condensed hydrocarbons settle down in a vessel from where are pumped back to customer’s storage tanks.