1) Adsorption and concentration of the VOCs using a hydrophobic Zeolite Rotor2) Desorption of the VOCs from the Rotor with a hot slip-stream of air3) Destruction of the concentrated VOCs by a Thermal Oxidizer A Rotor wheel is a temperature swing adsorption device, designed to continuously remove VOC from a low concentration, high volume air stream by adsorbing the VOCs onto a hydrophobic Zeolite media. After the VOCs have been collected, they are then released from the Rotor by a heated low volume air stream to be treated by the thermal oxidizer. By concentrating the VOCs into the low volume air stream, considerable energy savings, both electric and fuel gas, are achieved.