Recuperative Oxidiser

Where the concentration of the VOC is relatively high, support fuel use will be low. The heat contained within the clean exhaust gases can be used to preheat the incoming waste gasses prior to the oxidiser furnace. This will further reduce the support fuel use. Additionally a secondary heat exchanger can also be used to recover still further an amount of heat for other energy requirements (space or dryer heating).

 

Recuperative systems are direct-fired thermal oxidisers with a primary heat recovery heat exchanger. A primary heat exchanger can recover up to 70% of the heat from the oxidation process. They are a simple, cost effective, means of destroying VOC where the inlet concentration is relatively high or particularly where heat can be usefully recovered for other processes.