Regenerative Thermal Oxidizer
During regenerative thermal oxidizer (RTO) the exhaust air is heated up to 820 °C. The VOC changes to CO2 and H2O. During this exothermal reaction heat is released. This heat reduces the amount of energy for the pre heating of the air. The regenerative afterburning is typically equipped with multiple chambers. Every chamber has a high efficient heat accumulator made from ceramic. The exhaust air purification from VOC via RTO works in the following parallel / inline steps:
During the course of exhaust air cleaning the chambers are controlled in cycles by a throttle system. That means one chamber is used for heating the exhaust air, one chamber is heated up by the purified exhaust air and the third chamber is flushed with clean air.
Advantages:
- Robust design, reliable operation, long lifetime
- High cleaning quality at low energy consumption
- Further use of heat is possible
Applications and limitations:
- Recommended for volumes with high VOC concentration: 5,000 – 300,000 m³/h, < 10,000 mg/m³
- Unsuitable for SiO2