---
title: Electric Regenerative Thermal Oxidation
url: "https://www.envanio.com/en/air-pollution-control-and-heat-recovery/products/product/electric-regenerative-thermal-oxidation"
date: 2026-10-12
modified: 2026-10-13
---
# Electric Regenerative Thermal Oxidation
Thermal Oxidation
Electric Regenerative Thermal Oxidation
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Regenerative thermal oxidation (RTO) is a highly efficient process that cleans industrial exhaust by destroying hazardous air pollutants (VOCs and HAPs) and eliminating unpleasant odors. Our unique electrically heated RTO system does not require a conventional combustion chamber or burner because it is based on a flameless, regenerative single-bed heat exchanger principle. Thanks to the flameless oxidation process, there are virtually no thermal NOx emissions and very low CO levels.
[ Request a Consultation ](https://www.envanio.com/en/contact-sales-envanio)
### Very High Destruction Efficiency
Thanks to very high destruction efficiencies of up to 99.7%, Envanio’s RTO system ensures compliance with strict environmental regulations and emission limits.
### Very Low Operating Costs
Once the system has been electrically heated to operating temperature, it operates in an autothermal manner in many applications, which reduces operating costs significantly.
### Low-Maintenance Design
The robust single-bed design has fewer mechanical components than traditional multi-bed RTO systems. This increases reliability and reduces maintenance requirements.
[ Technical Data ](#c765)
[ How It Works ](#c766)
[ Applications ](#c769)
[ Service ](#c770)
[ More Equipement ](#c772)
[ Request a Consultation ](https://www.envanio.com/en/contact-sales-envanio)
Highly Energy-Efficient Purification of Small Air Flow Rates with Low to Medium VOC Concentrations
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| Process | Thermal Oxidation |
|---|---|
| Air Flow Rate | 1.000 Nm³/h to 70.000 Nm³/h |
| Solvent Concentration | up to 10 g/Nm³ |
| Operating Temperature | 1652 °F bis 1796 °F |
| Destruction Efficiency | up to 99.7% |
| Thermal Efficiency | up to 98% |
| Energy Sources | Electricity |
| Supplementary Fuel | A natural gas injection system supplies supplementary fuel as needed |
| Design | The compact, modular design and high degree of prefabrication minimize installation time and costs |
Each system is custom-designed based on your requirements and processes.
How Our Electric RTO System Works
-----------------------------------
01
Exhaust Air Intake
Pollutant-laden exhaust air from industrial production processes is drawn directly into the system.
02
Single Heat-Transfer Bed
The unit consists of a single heat-transfer bed filled with cera mic media. Plenums are located above and below the bed and serve route for process or cleaned air.
03
Combustion of Pollutants
As the solvents move through the inlet side of the bed, they get hot enough to undergo thorough oxidation to water vapor and carbon dioxide.
04
Heat Recovery
The ceramic media on the outlet side of the bed recovers the energy cleaned air stream, which includes the thermal energy released during solvent oxidation.
05
Reversal of Air Flow
Pneumatically operated valves reverse the direction of the air flow through the media bed at regular intervals (typically every 180–300 seconds) to maintain the heat exchanger's high efficiency.
06
Exhaust of the Purified Air
Finally, the purified exhaust air is safely discharged into the atmosphere through an exhaust valve and a chimney stack.
01/06
Typical Applications for Flameless Regenerative Thermal Oxidation
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Envanio designs and manufactures highly adaptable RTO systems custom-engineered to meet the strict emission-control demands of your facility’s production processes. Thanks to their robust, energy-efficient design, our systems are widely utilized across a diverse range of industrial sectors.
- [ Surface Treatment View Industry ](https://www.envanio.com/en/air-pollution-control-and-heat-recovery/industries/surface-treatment "Surface Treatment")
- [ Food & Animal Feed Industry View Industry ](https://www.envanio.com/en/air-pollution-control-and-heat-recovery/industries/food-and-animal-feed-industry "Food & Animal Feed Industry")
- [ Automotive Industry View Industry ](https://www.envanio.com/en/air-pollution-control-and-heat-recovery/industries/automotive-industry "Automotive Industry")
360° Service for Your Air Pollution Control System
----------------------------------------------------
Take advantage of our 360° support for air pollution control systems from Envanio or third-party manufacturers. Our service teams support your plant throughout the entire equipment lifecycle, providing routine inspections, preventative maintenance, system audits, efficiency retrofits, repairs, and genuine replacement parts.
[All Services](https://www.envanio.com/en/service/air-pollution-control-and-heat-recovery)
More Ways to Treat Exhaust Air
--------------------------------
To deliver solutions tailored to your specific requirements and varying operating conditions, Envanio offers a wide range of standard and custom-engineered air pollution control systems based on thermal oxidation.
[All Products](https://www.envanio.com/en/air-pollution-control-and-heat-recovery/products)
Show more
### Regenerative thermische Nachverbrennung
Regenerative thermal oxidation (RTO) is a highly efficient process that cleans industrial exhaust by destroying hazardous air pollutants (VOCs and HAPs) and eliminating unpleasant odors. By using internal ceramic heat exchange media, the system traps and recycles its own heat, making the entire purification process incredibly energy efficient.
[View Product](https://www.envanio.com/en/air-pollution-control-and-heat-recovery/products/product/regenerative-thermal-oxidation)
### Recuperative Thermal Oxidation
Recuperative thermal oxidation is a highly efficient process that cleans industrial exhaust air by destroying hazardous air pollutants (VOCs and HAPs) and eliminating unpleasant odors. The system is also well suited for processes where particulate matter and aerosols are generated. An integrated metallic shell-and-tube heat exchanger enables efficient primary heat recovery.
[View Product](https://www.envanio.com/en/air-pollution-control-and-heat-recovery/products/product/recuperative-thermal-oxidation)
### Direct Fired Thermal Oxidation
Direct fired thermal oxidation is a highly efficient process that cleans industrial exhaust by destroying hazardous air pollutants (VOCs and HAPs) and eliminating unpleasant odors. The system is particularly well-suited when heavily contaminated exhaust streams must be treated reliably with high removal efficiencies, and when complex heat recovery systems are not economically feasible.
[View Product](https://www.envanio.com/en/air-pollution-control-and-heat-recovery/products/product/direct-fired-thermal-oxidation)
### VOC Concentration
Envanio’s VOC concentration process uses adsorption to concentrate dilute solvent emissions. For cost-effective air pollution control, adsorption is recommended first to concentrate large exhaust airflows with low pollutant loads. The concentrated exhaust air is then routed to downstream recuperative or regenerative thermal oxidation for highly energy-efficient destruction.
[View Product](https://www.envanio.com/en/air-pollution-control-and-heat-recovery/products/product/voc-concentration)
### Activated Carbon Adsorption
Envanio’s activated carbon adsorption is based on the physical adsorption process to purify industrial process air of volatile organic compounds (VOCs) and hazardous air pollutants (HAPs) from industrial exhaust air, with the option for solvent recovery. In our regenerative systems, both the adsorbent and solvents are recovered for reuse, while in non-regenerative systems, the spent activated carbon is safely disposed of or replaced along with the captured pollutants.
[View Product](https://www.envanio.com/en/air-pollution-control-and-heat-recovery/products/product/activated-carbon-adsorption)
### Catalytic Hot Gas Filtration
Envanio’s catalytic hot gas filtration is based on an integrated 3-in-1 process for industrial hot gas and exhaust air purification. Rigid, high-temperature ceramic filter elements enable the simultaneous removal of particulate dust, heavy metals, sulfur oxides (SOx), and nitrogen oxides (NOx) from process exhaust in a single compact system.
[View Product](https://www.envanio.com/en/air-pollution-control-and-heat-recovery/products/product/catalytic-hot-gas-filtration)
### Wet Scrubbing
Envanio’s wet scrubbers rely on absorption for the wet separation of inorganic compounds, particulates, mist, and acidic gases. During the regenerative or direct-fired thermal oxidation of halogenated hydrocarbons or sulfur compounds, substances such as hydrogen halides or SOx are generated, which must be scrubbed from the exhaust air in a downstream wet scrubber.
[View Product](https://www.envanio.com/en/air-pollution-control-and-heat-recovery/products/product/wet-scrubbing)
### Liquid Distillation
Envanio’s distillation systems efficiently separate solvents from water and split complex solvent mixtures into reusable components. Integrated recovery processes reduce raw material consumption and operating costs, with flexible designs for batch or continuous operation.
View Product
01/08
Let's Talk
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Please contact us directly to schedule a personal consultation or submit your project details using our contact form to receive a complementary, no-obligation quote.
Kai Weber
Director Sales EMEA
[ +49 7142 7863-999 ]() [ sales@envanio.com ](#)
[ Get in Touch ](https://www.envanio.com/en/contact-sales-envanio)
