A medical products manufacturer based in the Midwest installed a regenerative thermal oxidizer (RTO) for the abatement of volatile organic compounds (VOC).

The 10,000-scfm oxidizer, supplied by Catalytic Products International (CPI), will control VOC emissions from a single-strip coating line and tunnel dryer. The exhaust stream in this application contains several solvents, including toluene, ethanol, ethyl acetate and methanol.

The regenerative thermal oxidizer destroys the VOC emissions from the coating process with 98 percent destruction efficiency at a thermal efficiency of 95 percent. CPI worked closely with the manufacturer to design and install the RTO to effectively treat the VOC emissions from the web-coating process.

Thermal treatment of VOCs and other air pollutants works by a reaction of the hydrocarbon-based air pollutants with oxygen and heat. In this environment, the VOCs are chemically oxidized to form inert byproducts like CO2, water vapor and usable heat. These byproducts are released to the atmosphere or used within primary or secondary energy-recovery techniques to lower the operational cost.