B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 53/34 (2006.01) B01D 53/86 (2006.01) F23G 7/06 (2006.01) B01D 53/36 (1990.01)
Patent
CA 2094977
An oxidation or converter apparatus for cleansing air contaminated by volatile organic compounds (VOC) in an exothermic reaction includes a first pipe connectable to a source of the VOC contaminated air and a combustion chamber with a burner, an inlet for the VOC contaminated air and an outlet to atmosphere for exhaust, the inlet being connected to the first pipe. A catalytic oxidizer having an inlet for the VOC contaminated air and an outlet to atmosphere for exhaust is also provided along with an air-to-air heat exchanger. The outlet of the catalytic oxidizer is connected to a first inlet of the heat exchanger in order to provide heated exhaust air to one side of the exchanger. A second inlet of the heat exchanger is connected by a suitable conduit to the first pipe. The contaminated air which is preheated in the heat exchanger is carried by a further conduit to the inlet of the combustion chamber. After being further heated in the combustion chamber, it passes along an additional conduit to the inlet of the oxidizer. By the selective use of bypass valves, the unit can operate in either a thermal mode or a catalytic mode.
Hsu Raymond
Lucas Walter P.
Comenco Systems Inc.
Ridout & Maybee Llp
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