Spooner Industries Ltd. Regenerative Thermal Oxidisers (RTO)

Regenerative Thermal Oxidisers (RTO’s) consist of a number of ceramic media chambers or beds, connecting to the combustion chamber. The VOC and HAP laden process gas enters the oxidiser through an inlet manifold to flow control valves that direct the gas into one of the beds. The process gas is progressively heated in the ceramic media bed as it moves towards the combustion chamber. Once oxidised in the combustion chamber, the purified air releases thermal energy in the media beds that are in the outlet flow direction from the combustion chamber. Poppet or butterfly valves alternate the airflow direction into the media beds to maximise energy recovery within the oxidiser. The oxidisation and high energy recovery within these oxidisers reduces the auxiliary fuel requirement and saves operating costs - the units can reach self-sustaining operation with no auxiliary fuel usage (auto-thermal) at low inlet VOC concentrations.