Full-scale scrubber characterization of Conesville Unit 5. Final report

Technical Report · Sun Aug 01 04:00:00 EDT 1982

OSTI ID:6924278

Smith, E O; Morgan, W E; Ferguson, A W; Galeski, J B

The flue gas desulfurization system at Columbus and Southern Ohio Electric Company Conesville Unit 5 was characterized by field testing and engineering analysis. The characterization included measurement of currently regulated as well as unregulated emissions in the gas, liquid, and solid effluent streams of the sulfur dioxide scrubber system. Sulfur dioxide, nitrogen oxides, particulate, fine particulate, trace elements, particle size-segregated trace element distribution, sulfuric acid mist, chlorides, fluorides, organics, carbon monoxide, and carbon dioxide were all measured in the scrubber system influent and effluent streams. In addition, mist eliminator performance, scrubber generated particulate, and scrubber sludge characterization testing and analyses were performed. A discussion of the scrubber process chemistry based on the system performance data gathered is presented. An engineering and economic analysis of the scrubber system, including suggested improvements to the system, is included. Sulfur dioxide removal efficiencies from 94 to over 99% were found over a range of boiler loads and scrubber liquid-to-gas ratios for the Conesville Unit 5 magnesium-enhanced lime scrubbing system. Particulate levels were essentially the same at the inlet and outlet of the scrubber system. The capital cost of the scrubber system, additive preparation system and sludge disposal system was about $62.78/kW. The annual operating cost was 5.5 mills/kWh for 1979 based on a 48% capacity factor. Major operational problem areas have included the slurry preparation system, scrubber vessel lining, and the thickener. The scrubber system availability has improved to a level of about 70% for recent operational periods as contrasted to an availability of about 40% for the first few years of scrubber operation.

• Research Organization: Black and Veatch Consulting Engineers, Kansas City, MO (USA)
• OSTI ID: 6924278
• Report Number(s): EPRI-CS-2525; ON: DE82906488
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
20 FOSSIL-FUELED POWER PLANTS
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
AIR POLLUTION CONTROL
AVAILABILITY
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL EFFLUENTS
CHEMICAL REACTIONS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
CONTROL
DATA
DESULFURIZATION
ECONOMIC ANALYSIS
ECONOMICS
ELEMENTS
EMISSION
EQUIPMENT
EXPERIMENTAL DATA
FIELD TESTS
FLUE GAS
FLUORIDES
FLUORINE COMPOUNDS
FOSSIL-FUEL POWER PLANTS
GASEOUS WASTES
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
LIME-LIMESTONE WET SCRUBBING PROCESSES
NITROGEN COMPOUNDS
NITROGEN OXIDES
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PERFORMANCE TESTING
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
REGULATIONS
SCRUBBERS
SCRUBBING
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SULFURIC ACID
TESTING
THERMAL POWER PLANTS
TRACE AMOUNTS
WASTES