Catalytic, recuperative thermal and regenerative thermal oxidizers are used to remove pollutants from process emissions.

Regenerative Thermal Oxidizer

Each of the company’s regenerative thermal oxidizers system is custom designed to achieve the desired performance, and each system goes through exhaustive front-end and preengineering analysis. Based on that analysis, the company designs, drafts and manufactures the system. Each oxidizer is designed to be an energy-efficient system that achieves high levels of VOC destruction to keep processes well below required DRE emission levels. The company also has experience with handling exhaust streams with VOCs, hydrocarbons, solvents and HAPs as well as particulate-laden processes that generally require prefiltration prior to the oxidizer.

Epcon Industrial Systems LP, (936) 273-3300,,

Two-Canister Oxidizer
Enterprise Il achieves regulatory compliance with a compact two-canister system. Compared to three-column regenerative thermal oxidizer designs, the system operates on longer cycle times, at higher temperatures and with fewer moving parts, according to the manufacturer. It uses engineered ceramic heat exchange media that provides even process air distribution across the column while promoting turbulence. It achieves a standard VOC destruction rate of up to 99 percent.
Megtec Systems, (920) 336-5715,

Packaged Thermal Oxidizers
Line of skid-mounted oxidizers covers a range of 5,000 scfm, 10,000 scfm, 20,000 scfm and 30,000 scfm. Features include a preassembled, modular design that reduces installation time, 98 percent destruction efficiency; and 95 percent heat exchanger efficiency. The regenerative thermal oxidizer also includes touch-screen controls, a modem for remote monitoring and troubleshooting, and hydraulic actuation.
Pro-Environmental Inc., (909) 989-3010,

Regenerative Thermal Oxidizer
Regenerative thermal oxidizer destroys hazardous air pollutants (HAPs), volatile organic compounds (VOCs) and odorous emissions that are discharged from industrial processes. Oxidizer achieves emission destruction through the process of high temperature thermal or catalytic oxidation, converting the pollutants to carbon dioxide and water vapor while reusing the thermal energy generated to reduce operating costs. Once oxidized in the combustion chamber, the hot purified air releases thermal energy as it passes through the media bed in the outlet flow direction. The outlet bed is heated and the gas is cooled so that the outlet gas temperature is only slightly higher than the process inlet temperature. Poppet valves alternate the airflow direction into the media beds to maximize energy recovery within the oxidizer. The high energy recovery within the oxidizers reduces the auxiliary fuel requirement and saves operating cost.
Anguil Environmental Systems, (800) 488-0230,

Thermal Oxidizers Control Emissions, Save Energy
Company offers regenerative thermal oxidizers and regenerative catalytic oxidizers for VOC control. Used in a range of process industries, the company’s systems have been applied to more than 6 million cfm of process emissions. Designed with proprietary features, GeoTherm and GeoCat are capable of VOC destruction efficiencies of more than 99 percent with minimum energy consumption, according to the company.
Geoenergy Div., A.H. Lundberg Associates Inc., (425) 283-5070,

Rotary Concentrator
Designed for low concentration, large airflow applications in which the exhaust stream is at or near ambient temperature, the rotary concentrator/regenerative thermal oxidizer system is designed to remove and destroy VOCs and HAPs generated from a facility’s production process. The system performs a multistep process: removal of the VOC/HAP from the process airstream using a hydrophobic Zeolite rotating wheel; desorbing or removing the VOC/HAP from the Zeolite with a reduced airstream; and destruction of the concentrated VOC/HAP using an oxidizer.
CMM Group, (920) 336-9800,

VOC Abatement System
Retox provides more than 99 percent VOC control with low-pressure-drop ceramic heat exchangers rated at 95 percent primary heat recovery, providing fuel-free operation at 3 percent LEL and greater inlet VOC loadings. The dual-chamber regenerative thermal oxidizer offers flameless, NOX-free operation with the oxidizer burner only used for initial cold startups. Secondary hot air, chilling and hot oil heat recovery also are feasible for many applications.
Adwest Technologies Inc., (714) 632-9801,