Regenerative Thermal Oxidizers (RTO)
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.
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RTO Case Studies
RTO Operation
Maintaining an RTO
Selecting an RTO
FAQs
It depends on some design factors that need to be scrutinized but typically, no. Advancements in new structured media designs can sometimes increase the thermal efficiency and reducing pressure drops through the media beds. This can sometimes can provide a couple percentage points of capacity increases over RTOs that utilize saddle ceramic media.
In most cases, yes. But proper evaluation is recommended to establish that no potential catalyst poisons or masking agents are present in your airstream.
Yes, most RTO systems are equipped with a VFD on the main fan. VFDs are important for efficient operation, allowing for volume turn-down, improved energy savings, and idle-mode operation when full airflow isn’t needed.
Catalyst utilized in a regenerative catalytic oxidizer (RCO) allows chemical reactions to occur at lower temperatures (700-800F) than they occur in a thermal oxidizer (typical 1400-1450F) or an RTO (typical 1600F).
Read more in Comparison: RTOs and RCOs.
Residence time refers to how long gases remain at oxidation temperature inside the chamber. Typical residence times range from about 0.5 to 1.0 seconds (though again, this varies by industry as well as chamber design).
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