Other 40' Indirect Fire Thermal Desorption Plant w/VRS

(Vapor Recovery System) consists of one 40' indirect fire rotary kiln (stainless steel), combustion chamber with a gas/oil burner and an auxiliary waste gas burner, solids feed and discharge system, quench scrubber, second stage scrubber, dust collector and oxidizer. The system comes complete with all supporting heat exchangers, pumps, blowers and automated control system (PLC). The contaminated material is fed to the 40' long primary thermal desorption unit where the material is heated up to 900 F and hydrocarbons and other contaminants are vaporized. The clean material is discharged through a jacketed cooling auger and can be used as filler. The system's heat is generated in a combustion chamber consisting of a 20 MMBtu gas/oil burner and an auxiliary gas burner. The main burner is used during start up and later as a secondary flame to the auxiliary gas burner. The auxiliary burner is fed from the waste gas stream generated during the process and is oxidized at 2,000 F in the combustion chamber. The heat generated through this process then forms the primary source of heat for the primary thermal desorption unit. The vapor from the primary thermal desorption unit is pulled out through a first stage, oil cooled quench scrubber that condenses the heavier hydrocarbons and removes dust particles from the gas stream. The remaining vapor is then drafted to a secondary scrubbing tower where the steam and lighter hydrocarbons are condensed and pumped to an oil/water separator. The remaining gas is blown through a dust collector and into the combustion chamber/oxidizer auxiliary burner. The oil/water separator skims the oil off the water and pumps it to an oil tank where the lighter and heavier oils are mixed. The plant can be adapted to specific client needs and is ideal for treatment of drilling mud, heavy oil-contaminated soil with a high concentration of hydrocarbons or where re-capturing the oil is important and makes economic sense.