Process and apparatus for decontaminating air

Patent · Tue Jun 15 00:00:00 EDT 1993

OSTI ID:6418683

Reynolds, W D

An apparatus 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 comprising: a first means for passing the contaminated air stream via a tube into an enclosed empty air flow duct to allow free flow of said contaminated air stream; a second means for introducing a secondary fresh air stream into an inlet of said first means to dilute and maintain the contaminated air stream at a predetermined concentration level; a means for measuring a flow rate of said contaminated air stream; said air duct containing at least a first and second residence chambers separated by a wall divider; said divider containing at least one opening in which is mounted at least one centrally located ultraviolet wave energy source extending into said air stream to allow said contaminated air stream to pass around and in close contact with said wave energy source, wherein said contaminated air stream is irradiated by said wave energy source; an analyzer means for conducting on-line real time analysis of said diluted contaminated air stream in said first residence chamber, said analyzer means being capable of analyzing any residual contaminated mixtures in an effluent air stream from said second residence chamber; whereby said ultraviolet wave energy source functions to generate oxygen atom free radicals, other free radicals, ions, and ozone to react with the contaminated air strewn to produce unwanted acid gases, and wherein said effluent air stream containing the unwanted acid gases, being passed from said second residence chamber, can be disposed of in any manner known to the art.

• Assignee: IMS; EDB-93-095855
• Patent Number(s): US 5219534; A
• Application Number: PPN: US 7-847348
• OSTI ID: 6418683
• Resource Relation: Patent File Date: 9 Mar 1992
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
54 ENVIRONMENTAL SCIENCES
ORGANIC COMPOUNDS
AIR POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
DESIGN
TOXIC MATERIALS
DECONTAMINATION
MIXTURES
ORGANIC SOLVENTS
PETROLEUM PRODUCTS
REAL TIME SYSTEMS
ULTRAVIOLET RADIATION
VAPORS
WASTE PROCESSING
CLEANING
CONTROL
DISPERSIONS
ELECTROMAGNETIC RADIATION
EQUIPMENT
FLUIDS
GASES
HAZARDOUS MATERIALS
MANAGEMENT
MATERIALS
POLLUTION CONTROL
PROCESSING
RADIATIONS
SOLVENTS
WASTE MANAGEMENT
020900* - Petroleum- Environmental Aspects
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)