Patent ID: 7762808

Claim:
A regenerative thermal oxidizer to burn process gases, comprising: a reaction chamber having a combustion unit to burn the process gases; a heat exchanging part placed to be in contact with the reaction chamber and comprising a plurality of sectors for heat exchange of the process gases; a first duct communicating with an outside through an upper end of the regenerative thermal oxidizer while passing through the heat exchanging part; a second duct provided on a lower end of the regenerative thermal oxidizer to supply or discharge the process gases into or from the heat exchanging part; a cylindrical rotor provided under the heat exchanging part, and comprising: an upper opening provided on an upper surface of the cylindrical rotor which is in contact with the first duct; and a lower opening provided on a lower surface of the cylindrical rotor opposite to the upper opening, wherein the upper opening provides a first gas flow path to connect some of the sectors of the heat exchanging part to the outside of the regenerative thermal oxidizer through the first duct, and the lower opening provides a second gas flow path to connect other sectors of the heat exchanging part to the outside of the regenerative thermal oxidizer through the second duct; a plurality of partitioning plates to define the sectors of the heat exchanging part and to prevent the process gases passing through the first and second gas flow paths below the heat exchanging part from mixing with each other; and a drive unit coupled to a lower end of the cylindrical rotor to rotate the cylindrical rotor at a predetermined speed.