Regenerative Thermal Oxidizer (RTO) mainly relies on high-temperature oxidation and ceramic heat storage media to treat VOCs waste gas.
1. Waste gas carrying organic pollutants enters the heat storage chamber filled with ceramic heat accumulators, absorbs heat from high-temperature ceramics and rises rapidly in temperature.
2. The preheated exhaust gas flows into the central combustion chamber, where auxiliary fuel heats the gas to 700–850 ℃. At this temperature, VOCs are completely oxidized and decomposed into harmless CO₂ and water vapor.
3. The high-temperature purified flue gas passes through another cold ceramic heat storage bed, transferring most heat to the ceramic medium for heat recovery, and the cooled clean gas is discharged outwards.
4. The system regularly switches intake and exhaust channels through switching valves. The cooled ceramic bed absorbs heat for preheating incoming waste gas in the next cycle, achieving efficient heat recycling with heat recovery efficiency over 95%.
5. The whole process needs no catalyst, free from poisoning risks of sulfur, halogen and silicone-containing waste gas, and the VOC removal efficiency can reach more than 99%. If white smoke appears after treatment, wet electrostatic precipitators or magnetic dewhitening devices can be installed as rear supporting equipment.