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Combustion of coal-oil mixtures in a 700-HP watertube boiler

Technical Report ·
OSTI ID:6500703
; ; ;
Coal-oil mixtures containing up to 50 percent coal by weight have been successfully burned in a 700 HP watertube boiler, designed for oil firing, with no derating occurring. Carbon-conversion efficiencies were above 98 percent, and boiler efficiencies were the same as when firing No. 6 fuel oil. Combustion tests were conducted with No. 6 fuel oil mixed with Pittsburgh Seam coal pulverized to a coal particle size of 90 percent minus 200 mesh. Test results related to boiler performance, pollutant emissions, and ash deposition are presented. The equipment, instrumentation, and data acquisition system of the combustion test facility are described. The modest changes required to adapt the facility designed for oil firing to utilize coal-oil mixtures are discussed. Additional combustion tests needed to assess bottom-ash accumulation and the corrosion, erosion, and fouling behavior inherent in the long-duration operability of coal-oil mixtures in an oil-fired boiler are underway.
Research Organization:
Department of Energy, Pittsburgh, PA (USA). Pittsburgh Energy Technology Center
OSTI ID:
6500703
Report Number(s):
DOE/NBM-3008448; ON: DE83008448
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
02 PETROLEUM
025000 -- Petroleum-- Combustion
ASHES
BAGHOUSES
BOILERS
BURNERS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COAL PREPARATION
COMBUSTION
COMBUSTION PROPERTIES
COMMINUTION
DATA
DESULFURIZATION
DISPERSIONS
DRY SCRUBBERS
EFFICIENCY
EMISSION
ENERGY SOURCES
EQUIPMENT
EXPERIMENTAL DATA
FLUE GAS
FOSSIL FUELS
FUEL OILS
FUEL SLURRIES
FUELS
GASEOUS WASTES
INFORMATION
LIQUID FUELS
MATERIALS
MIXTURES
NUMERICAL DATA
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
PARTICLES
PETROLEUM PRODUCTS
POLLUTION CONTROL EQUIPMENT
REMOVAL
RESIDUES
RETROFITTING
SCRUBBERS
SLURRIES
SUSPENSIONS
TEMPERATURE DEPENDENCE
TEST FACILITIES
THERMOCHEMICAL PROCESSES
VISCOSITY
WASTES