Process and apparatus for decontaminating air

Details Process and apparatus for decontaminating air Process and apparatus for decontaminating air

1992-03-09

1993-06-15

Walsh, Donald P.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

With means applying electromagnetic wave energy or...

422186, B01J 1912

Patent

active

052195341

ABSTRACT:
An apparatus and method for irradiating a contaminated air stream emanating from contaminated sources which contain mixtures of one or more volatile toxic and hazardous organic solvents or petroleum product vapors, with ultraviolet wave energy below 200 nm is described. The apparatus includes an enclosed empty air flow duct to allow free flow of the contaminated air stream via a tube. Also included is a secondary fresh air stream which is to dilute and maintain the contaminated air stream at a predetermined concentration level. The apparatus further includes devices for measuring the flow rate of the contaminated air stream and for conducting on-line real time analysis of the diluted contaminated air stream. The air duct contains at least a first and second residence chambers separated by a wall divider having at least one opening in which is mounted at least one centrally located ultraviolet wave energy source extending into the air stream to allow the contaminated air stream to pass around and in close contact with the wave energy source. The irradiated contaminants are thus reduced to acid gases which may be removed by conventional methods.

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