Status of pollutant removal technology for coal fired power plants in the Northeastern US
The status of air pollution control technology for coal-fired industrial and power plant boilers has been surveyed. Lime and limestone based scrubbers are capable of removing as much as 93% of flue gas sulfur dioxide at facilities supplying 800 MW power. A sludge containing sulfur oxides must be discarded in the process, usually requiring a settling pond. The Wellman-Lord, thiosorbic, and citrate processes are capable of producing salable products instead of the sludge. They are successful (85 to 90% removal) on demonstration-scale units. The Wellman-Lord process is currently being tested on large-scale coal-fired units. Electrostatic precipitators, the major control device for removing particulates, can eliminate 99.5% of the fine particles. Fabric filtration can remove 99.9% and is more efficient in the 0.2 to 2-..mu..m size range than ESPs. Utilization of fabric filters is expected to increase significantly from its present 5% of the particulate removal market. Nitrogen oxide concentrations in coal-fired systems are usually reduced by modification of the combustion system. No significant NO/sub x/ reduction on full-scale boilers has yet been reported, but demonstrations are planned over the next few years. Various process capital and annualized costs are reported for SO/sub 2/ and particulate removal systems. The status of fluidized bed combustion, fuel desulfurization, conversion of coal to gaseous and liquid fuels, and flue gas denitrification is also discussed.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- DOE Contract Number:
- EY-76-C-02-0016
- OSTI ID:
- 5904828
- Report Number(s):
- BNL-51004
- Country of Publication:
- United States
- Language:
- English
Similar Records
SULFURIC ACID REMOVAL PROCESS EVALUATION: LONG-TERM RESULTS
Catalytic fabric filtration for simultaneous NO{sub x} and particulate control. Quarterly technical progress report, January 1--March 31, 1993
Related Subjects
42 ENGINEERING
BAGHOUSES
ECONOMICS
PERFORMANCE
ELECTROSTATIC PRECIPITATORS
FABRIC FILTERS
FOSSIL-FUEL POWER PLANTS
POLLUTION CONTROL EQUIPMENT
INDUSTRIAL PLANTS
NITROGEN OXIDES
AIR POLLUTION CONTROL
SCRUBBERS
SULFUR OXIDES
COMPARATIVE EVALUATIONS
EXPERIMENTAL DATA
FLUE GAS
GASEOUS WASTES
GRAPHS
PARTICLES
TABLES
CHALCOGENIDES
DATA
DATA FORMS
EQUIPMENT
FILTERS
INFORMATION
NITROGEN COMPOUNDS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POWER PLANTS
SULFUR COMPOUNDS
THERMAL POWER PLANTS
WASTES
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
424000 - Engineering- Pollution Control Equipment- (1980-1989)