Regenerative thermal oxidizer (RTO)

The system is used to clean the exhaust air from solvents and other pollutants (ex. CO) through thermal oxidation; it is also possible to recover the exceeding heat coming from the combustion of the pollutants.

The system usually has 3 or 5 towers, containing a ceramic matrix which depending from the direction of the air flow, absorbs the heat from the waste gas after the combustion or preheats the air before the combustion. The average cycle time is from 60 to 90 seconds depending on the nature and concentration of the individual contaminants.


Typical applications: Solvent processing industry suitable for high or low solvent concentration.

  • All facilities, Petrochemical, Pharmaceutical and Chemical industries, Converters etc., using solvents or other pollutants, whose purification involves the use of an oxidation process
  • Plants to produce adhesive tape, flexible packaging, insulating materials, rubber, artificial leather, painting industries etc.

Main features

  • Reliable, safe and cost-effective standard process
  • Easy to operate
  • Low operating costs
  • Safe compliance with specified emission levels
  • Very high plant availability
  • Automatic PLC control, ensuring safe operation of the regenerative thermal oxidizer

Regenerative       Aubert&Duval_5OLYMPUS DIGITAL CAMERA