Regenerative Thermal Oxidizers (RTO)

An installed regenerative thermal oxidizer unit

A regenerative thermal oxidizer (RTO) is an air pollution control device that destroys VOCs and hazardous air pollutants (HAPs) in industrial exhaust air. By using regenerative heat recovery, it achieves high fuel efficiency, often operating with 95% heat recovery.

Regenerative Thermal Oxidizers (RTO) are the technology of choice for most applications due to its high VOC destruction efficiency, low fuel use and long system life.
How often should I replace ceramic media?

How often ceramic media needs to be replaced depends on several factors such as whether there are any acids or particulates present in the airstream, VOC (volatile organic compound) concentration, RTO airflow, and the type of media in use. When not exposed to adverse operating conditions, ceramic media beds can have a life of 5-10 years. When adverse conditions are present, the media may need to be replaced more often. Contact our service department to schedule an inspection.

What warranties and performance guarantees come with refurbished regenerative thermal oxidizers (RTOs) from Kono Kogs?

Kono Kogs stands behind every refurbished RTO with warranties that match or exceed those of new equipment OEMs. We have a proven track record of meeting warranty commitments for parts and system performance across a wide range of customers from startups to Fortune 500 companies. Our experienced team provides ongoing technical and maintenance support both on-site, and remotely via KONOConnect to ensure your system operates reliably over the long term.

To ensure quality, we use only top-tier components, conduct thorough inspections, and upgrade parts as needed. Our collaborative planning and extensive oxidizer expertise help deliver flawless projects that our customers trust and recommend.

What is the role of turbulence in a thermal oxidizer?

VOCs (Volatile Organic Compounds) must combine with oxygen and heat to trigger the chemical reaction that breaks them down into CO2 and H2O. There are many successful thermal oxidizer designs that ensure sufficient turbulence, such as introducing the process air at an angle to induce spin or creating internal choke points. The better the mixing and heat distribution, the higher the VOC destruction.

What is the dwell time of a thermal oxidizer?

TOX typically have a 0.5 second to 1.0 second dwell time for most applications.

Our process shifted to more water-based and less solvent-based, and now the oxidizer uses much more gas. Can this be improved?

We can evaluate your heat exchanger, whether metal recuperative or ceramic regenerative, to see if upgrading to a more efficient type is possible. Adding a catalyst might also help reduce gas usage. In some cases, replacing the oxidizer with a more efficient system is the best option. We can check our inventory for suitable units or design a custom system tailored to your needs.

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You can also call Buster at 920-309-0725 or send us an email.