Full-scale scrubber characterization of Colstrip Unit 2. Final report

Technical Report · Wed Dec 01 04:00:00 EST 1982

OSTI ID:6805950

Smith, E O; Morgan, W E; Ferguson, A W

The flue gas desulfurization system at Montana Power Company Colstrip Unit 2 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 significant part of the program was devoted to establishing the applicability of measurement techniques and the quality and limitations of the resultant data. 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 is included. Sulfur dioxide removal efficiencies from 82 to 88% were found over a limited range of scrubber liquid-to-gas ratios and recirculating solids content for the Colstrip Unit 2 fly ash-lime scrubbing system. Particulate removal was measured at about 99% across the scrubber system. The capital cost of the scrubber system, additive preparation system, and sludge disposal system was about $69/kW in 1977. The annual operating cost was 4.5 mills/kWh for 1979. Major operational problem areas have included the slurry preparation system and scrubber vessel lining. The scrubber system availability has averaged about 86%.

• Research Organization: Black and Veatch Consulting Engineers, Kansas City, MO (USA)
• OSTI ID: 6805950
• Report Number(s): EPRI-CS-2764; ON: DE83901129
• 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
AEROSOL WASTES
AIR POLLUTION CONTROL
ALKALINE EARTH METAL COMPOUNDS
ASHES
AVAILABILITY
CALCIUM COMPOUNDS
CALCIUM HYDROXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
CONTROL
DATA
DESULFURIZATION
ECONOMICS
EFFICIENCY
ELEMENTS
EQUIPMENT
EXPERIMENTAL DATA
FEDERAL REGION VIII
FIELD TESTS
FLUE GAS
FLY ASH
FOSSIL-FUEL POWER PLANTS
GASEOUS WASTES
HYDROGEN COMPOUNDS
HYDROXIDES
INFORMATION
INORGANIC ACIDS
LIME-LIMESTONE WET SCRUBBING PROCESSES
MANAGEMENT
MONTANA
NITROGEN COMPOUNDS
NITROGEN OXIDES
NORTH AMERICA
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PARTICLES
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
REMOVAL
RESIDUES
SCRUBBERS
SCRUBBING
SIZE
SLUDGES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SULFURIC ACID
TESTING
THERMAL POWER PLANTS
TRACE AMOUNTS
USA
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES