Flux force condensation scrubbing

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Courtesy of Bionomic Industries Inc.

Flux force condensation scrubbing technology is used to capture fine (submicron) particulate at extremely high efficiency. It is a preferred method when using wet scrubbing to collect and control dioxins from combustion sources. As an added benefit, through the use of condensation, the water vapor plume commonly associated with a wet scrubbing system can be effectively eliminated. The overall collection efficiency of acid gases plus particulate is greater than with 'dry' systems because the acid gas removal efficiency is exceptionally high.

The flux force condensation (FFC) technique uses the condensation of water vapor onto the particulates to coat them with a water film, thus making the particles aerodynamically larger and easier to capture. This occurs in a device called a condenser/absorber or C/A. Because water vapor is condensed, the downstream equipment (fan, stack, or similar equipment) is physically smaller and often less expensive. The reduction in size occurs because the voluminous water vapor is condensed to low-volume water droplets, and the dry gas portion of the flow reduces in volume by cooling. The C/A circuit is also typically pH-con-trolled to simultaneously remove acid gases.

Applications in which FFC scrubbing is often used include hazardous and medical waste incinerators, boilers, calciners, kilns, and other sources that emit submicron particulate along with acidic gases. It is most often applied to sources that provide saturation temperatures higher than 145°Fbut can be applied to lower-temperature applications through the introduction of steam.

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