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02/09/2011
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Air pollution control specialist AirProtekt says equipment supplied to an unnamed aerospace finishing plant to abate VOC fumes and odours has effectively cut plant running costs and energy consumptoin.
 The Honeycat concentrator catalytic oxidation air pollution control and energy saving system is treating exhaust gases from three solvent-based spray painting booths and baking ovens, with solvent laden gases ducted and pulled through a rotary honeycomb zeolite wheel.
Solvent from the process ream is adsorbed onto the hydrophobic zeolite, and clean gases are then transported into the main process fan inlet, passing via an exhaust stack to atmosphere.
Trevor Lawton, AirProtekt's managing director, explains that the concentrator's honeycomb wheel zeolite rotor runs continuously to adsorb the VOCs. These pass into a regeneration zone, where they are removed by a small volume of preheated air, which then passes into a small Honeycat catalytic oxidation system.
The combination of the VOC concentrator and Honeycat catalytic oxidation system means very large process exhaust flows, containing low quantities of VOCs, can be treated by a cost effective system, he says.
"AirProtekt's solution has now enabled the new production facility to comply with statutory emission regulations for VOCs," says Lawton.
"The Honeycat concentrator catalytic oxidation air pollution control and energy saving system also benefits from much lower capital and running costs, compared with an alternative thermal oxidation plant solution," he adds.
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Author
Brian Tinham
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