Electrostatic precipitation of condensed acid mist
This project addresses the acid mist that is formed by condensation of sulfuric acid vapor in flue gas from coal-fired utility boilers. An acid mist can be formed whenever the flue gas temperature approaches the prevailing acid dew point. This commonly occurs when the gas is subjected to rapid adiabatic cooling in a wet scrubber system for flue gas desulfurization. Acid mists can also sometimes result from unexpected temperature excursions caused by air inleakage, load cycling, and start-up operations. A wet electrostatic precipitator (WESP) is the best control option for acid mist. The mist would blind a fabric filter and attack glass fiber fabrics. A wet ESP is required because the acid would quickly corrode the plates in a conventional dry ESP. The wet ESP also offers the advantages of no rapping reentrainment and no sensitivity to fly ash resistivity. Therefore, this program has been structured around the use of a compact, wet ESP to control acid mist emissions. 7 refs.
- Research Organization:
- Southern Research Inst., Birmingham, AL (USA)
- Sponsoring Organization:
- DOE/FE
- DOE Contract Number:
- AC22-88PC88867
- OSTI ID:
- 6924046
- Report Number(s):
- DOE/PC/88867-T7; SRI-ENV-90-345-6657-21; ON: DE90010969
- Country of Publication:
- United States
- Language:
- English
Similar Records
Electrostatic precipitation of condensed acid mist: Third quarterly technical progress report, March 1--May 31, 1989
Electrostatic precipitation of condensed acid mist
Related Subjects
01 COAL, LIGNITE, AND PEAT
SULFURIC ACID
AIR POLLUTION CONTROL
DROPLETS
ELECTROSTATIC PRECIPITATORS
FLUE GAS
FOSSIL-FUEL POWER PLANTS
PROGRESS REPORT
CONTROL
DOCUMENT TYPES
EQUIPMENT
GASEOUS WASTES
HYDROGEN COMPOUNDS
INORGANIC ACIDS
PARTICLES
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
THERMAL POWER PLANTS
WASTES
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
010800 - Coal
Lignite
& Peat- Waste Management