Principle of Operation
VOC laden exhaust air is duct to the thermal oxidizer system, passing through a primary heat exchanger and then into the oxidizer combustion chamber. The preheated exhaust air then passes across an auxiliary burner and is heated to a temperature controlled oxidation temperature suitable for the VOCs in the process. The air is held at that temperature for a sufficient length of time to insure conversion of the hydrocarbons to harmless products of combustion (H2O, CO2). As part of the oxidation process, the VOCs in the exhaust air release heat upon combustion which adds sufficient energy to the system to allow the temperature controlled fuel valve to throttle back and be used only to trim to the preset operating temperature.