TO systems
Thermal Oxidizer
Thermal oxidizers (TOs) treat industrial exhaust air containing volatile organic compounds (VOCs).
- Suitable for highly contaminated exhaust air streams and high pollutant concentrations
- Reliable compliance with emission limits according to LRV / TA Luft
- Oxidation temperature typically 750–1,100 °C, selected for the pollutant mixture
- Recuperative heat recovery efficiency of up to 75%, depending on heat exchanger design
Technical applications of TO systems
- Wallpaper manufacturing
- Paint and coatings industry
- Chemical industry
- Building materials industry
- Pharmaceutical industry
- Packaging industry
- Food production
- Waste management and recycling industry
- Plastics industry
- Metal industry
- Wastewater treatment plants
TO systems - Thermal Oxidizer
Thermal oxidizers (TOs) treat industrial exhaust air containing volatile organic compounds (VOCs). The incoming exhaust air is preheated in a recuperative heat exchanger before entering the combustion chamber, where it is oxidized at approx. 750–1,100 °C. Heat is recovered from the hot treated gas. The temperature, residence time, oxygen supply and mixing are designed to achieve the required destruction efficiency. Additional constituents may require downstream treatment.
The combustion chamber is lined with high-temperature resistant ceramic insulation, which protects the system body and ensures uniform temperature distribution. Heating is usually carried out by a gas or oil burner; electrically heated versions are also available as an alternative.
Recuperative TO systems may be suitable where regenerative media are unsuitable. Dust, water content and silicon compounds are assessed during design; pretreatment may be required. Organic liquids or process gases can also be injected directly into the combustion chamber and thermally treated.
Due to its robust design and simple system structure, the TO offers high operational reliability and reliable compliance with legal emission limits.
Features of TO systems
- Suitable for highly contaminated exhaust air streams and high pollutant concentrations
- Reliable compliance with emission limits according to LRV / TA Luft
- Oxidation temperature selected for the pollutant mixture and required residence time, typically 750–1,100 °C
- Recuperative heat recovery efficiency of up to 75%, depending on heat exchanger design (pocket, tube, or plate heat exchangers)
- Robust construction from high-temperature resistant materials for demanding applications
- High operational reliability through durable design and compensated thermal expansion
- Combination with VOC concentrator possible for low-loaded exhaust air streams
- Fully automatic operation with simple controls
- Integrated bypass damper for performance control and optimization of heat recovery
- Secondary heat utilization for steam generation or heating of process air, thermal oil, or hot water
- Also suitable for combustion of organic liquids and process gases
- Suitable for primary and secondary air burners as well as various burner systems