Coal-water slurry combustion tests

Conference · Sat Jan 01 04:00:00 EST 1983 · Proc. Am. Power Conf.; (United States)

OSTI ID:6653435

Manfred, R K; Borio, R W; Vecci, S J

This paper reports on the testing of slurries of different coals prepared by various vendors in order to establish typical ranges of physical and chemical properties and to determine the effect of these and rheological properties on atomization and combustion behavior. Six slurries provided by five vendors were tested to establish typical viscosity and solids levels of currently produced slurries. A key task of this project was the correlation of performance to the physical properties of a coal-water slurry (CWS). Topics considered include the 80 million Btu per hour burner test, atomizer/burner development, burner register development (cold flow modeling), a combustion performance comparison of CWS to parent coal, and combustion tests with an industrial boiler. Preliminary results indicate that slurry additives must be chosen carefully and with consideration of the slagging behavior of coal ash. It is demonstrated that, with the proper combination of burner and atomizer design, CWS can be successfully burned with carbon conversion efficiencies within 1 to 2% of that of the base coal fired under similar conditions. Includes 3 tables and 2 drawings.

• Research Organization: Electric Power Research Inst., Palo Alto, CA
• OSTI ID: 6653435
• Report Number(s): CONF-830446-
• Conference Information: Journal Name: Proc. Am. Power Conf.; (United States) Journal Volume: 45
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
ADDITIVES
ASHES
ATOMIZATION
BOILERS
BURNERS
CARBON
CARBONACEOUS MATERIALS
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
COAL
COMBUSTION
DESIGN
DISPERSIONS
EFFICIENCY
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUEL SLURRIES
FUELS
HYDROGEN COMPOUNDS
MATERIALS
MATERIALS TESTING
MIXTURES
NONMETALS
OXIDATION
OXYGEN COMPOUNDS
PERFORMANCE
PHYSICAL PROPERTIES
RESIDUES
RHEOLOGY
SCALING
SLAGS
SLURRIES
SUSPENSIONS
TESTING
THERMOCHEMICAL PROCESSES
VISCOSITY
WATER