Thermal Oxidizers for Air Pollution Control

Thermal treatment of VOC's and other air pollutants works by a simple reaction of the harmful air pollutants with oxygen and heat. In this environment the VOC's are converted to CO₂ water vapor (H₂O), and usable heat. These harmless by-products are released to atmosphere or use an energy recovery technique to further lower the operational costs.

Catalytic Products International designs and manufactures four different Thermal Oxidizer systems.

QUADRANT SR-Series (recuperative system using shell and tube heat exchangers)

QUADRANT NR-Series (non-recuperative systems commonly called afterburners)

QUADRANT IR-Series (recuperative system using an integrated shell and tube heat exchanger)

QUADRANT NRV-Series (non-recuperative system with a special burner system designed to process ultra-high VOC concentrations)

QUADRANT Series Thermal Oxidizers are considered among the world's most advanced recuperative thermal oxidation systems. These specially designed and proven systems combine the basic principles of time, temperature, and turbulence to the fullest extent possible. The results provide you with exceptional performance, substantially reduced operating costs, and industry-leading reliability. All of these QUADRANT Thermal Oxidizers maximize your pollution control investment by offering four specially designed systems. Each system utilizes the highest quality materials and metallurgy to meet your exact needs and provide you with flexibility for future growth.

The introduction and continued use of the QUADRANT Thermal Oxidizer product group are proof of our commitment to developing innovative and effective air pollution control equipment. No other manufacturer offers you the extensive knowledge - in both oxidizer technology and thermodynamics - necessary to achieve the most complete and cost effective elimination of VOC's.

THE QUADRANT THERMAL OXIDATION PROCESS

The QUADRANT Thermal Oxidation process begins with the touch of a button, which activates the system's PLC-based Temperature Safety System (TSS). The TSS control system automatically energizes the booster fan, purges the system with fresh air, ignites the burner, and gradually brings the system up to the correct operating temperature. The TSS also monitors the temperature in the heat exchanger, combustion chamber, and burner chamber. This helps safeguard the system from extreme temperature fluctuations that cause thermal stress and overall system fatigue.

As soon as the required operating temperature is reached, the TSS enables the process lines to feed into the oxidizer or holds the system in idle mode until production is ready. When production is ready the fresh air purge damper closes and one or more of the diverting dampers open to draw the volatile organic compounds (VOC's) from the process lines.

The VOC-laden process air stream is then directed into the condensate evaporate section where it is preheated to eliminate any vapor droplets before entering the FLOATING TUBE primary heat exchanger. This step protects the leading edge of the heat exchanger from condensate build-up and subsequent pre-ignition. When the stream enters the FLOATING TUBE heat exchanger, it is continuously preheated at close to the ignition temperature before being sent through the low NOx burner.

The contaminated air stream next passes through an elongated high velocity combustion chamber. Here a series of strategically placed mixing baffles creates turbulence and improves mixing, helping to prevent temperature stratification. From there the air stream rebounds 180° to assure proper mixing of all the effluent constituents. Even at low flow conditions, this mixing action provides the highest possible temperature uniformity for industry leading destruction ability at the lowest operational cost.

Once mixed, the air stream is held in the dwell chamber long enough to ensure complete combustion of the VOC's. From there the clean stream passes over the FLOATING TUBE primary heat exchanger prior to being discharged to the atmosphere or to a secondary heat recovery system.

Your process is now in compliance with all clean air regulations!

Select any of the following Thermal Oxidizer's for more detailed information.

QUADRANT SR-Series (recuperative system using shell and tube heat exchangers

QUADRANT NR-Series (non-recuperative systems commonly called afterburners)

QUADRANT IR-Series (recuperative system using an integrated shell and tube heat exchanger)

QUADRANT NRV-Series (non-recuperative system with a special burner system designed to process ultra-high VOC concentrations)

Products & Services: Systems Group | METAC Group

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