Aerosol particle charger and an SO/sub 2/ reactor using energetic electrons

Conference · Sun Jan 01 00:00:00 EST 1984

OSTI ID:5270035

Davis, R H

Two properties of energetic electrons in gas, their high specific ionization and their production of radicals and other chemically active specie, have promising applications to the cleanup of flue gas from coal combustion. The copious ionization has been used in a test particle charger to electrically charge 1 and 3 ..mu..m particles for subsequent removal by electrostatic precipitation. Particle charge greater than 5 times the theoretical ionic charging value for 1 ..mu..m particles have been observed in a bi-electrode electron beam precharger in which the beam energy is matched with the electrode spacing. In another test device, pulsed streamer coronas have been used to release and to energize electrons which promote gas phase chemical reactions and remote sulfur dioxide from humid air with high efficiency. The energized electrons produce oxidant radicals and chemically active specie which convert the SO/sub 2/ into sulfuric acid mist. While reported separately here, the two applications of energetic electrons may be amenable to combination in an integrated system for the combined treatment of flue gas.

• Research Organization: Florida State Univ., Tallahassee (USA). Dept. of Physics
• DOE Contract Number: AC22-83PC60266
• OSTI ID: 5270035
• Report Number(s): CONF-8410444-1; ON: DE86015266
• Resource Relation: Conference: Japan-U.S. seminar on detection and control of environmental problems, Fukuoka, Japan, 13 Oct 1984; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
54 ENVIRONMENTAL SCIENCES
20 FOSSIL-FUELED POWER PLANTS
FLUE GAS
PURIFICATION
SULFUR DIOXIDE
ELECTROSTATIC SEPARATION
AEROSOL GENERATORS
AIR POLLUTION CONTROL
CORONA DISCHARGES
DESULFURIZATION
ELECTRON BEAMS
ELECTROSTATIC PRECIPITATORS
BEAMS
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
ELECTRIC DISCHARGES
EQUIPMENT
GASEOUS WASTES
LEPTON BEAMS
OXIDES
OXYGEN COMPOUNDS
PARTICLE BEAMS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
SEPARATION PROCESSES
SULFUR COMPOUNDS
SULFUR OXIDES
WASTES
010800* - Coal
Lignite
& Peat- Waste Management
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
200202 - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions