Coal slurry combustion

Thesis/Dissertation · Sun Jan 01 04:00:00 EST 1984

OSTI ID:5966825

Hwang, L K

Experimental and numerical results are presented from examining the combustion of coal-slurry fuels. The combustion characteristics of a coal slurry agglomeration with and without metallic additives were investigated. The kinetics of the C-CO/sub 2/ reaction was re-examined since it has a significant influence upon the burning of the droplets. The inclusion of metallic additives influences the mass reduction rate in the diffusion control regime. It was found that increases in the mass reduction rate was a function of the amount of oxygen saved due to the metal involvement in the combustion process. For the kinetic controlled regime, the increase in the mass reduction rate was directly related to the amount of metallic particles present. The agglomeration of coal-oil mixtures (COM) droplets was studied with an electron microscope after quenching free falling mono-sized droplets that pass through an electrically heated furnace. The final portion of this study examines coal-oil-water slurries in a spray combustion configuration. The presence of the water holds the promise of internal boiling or superheating of the water within the slurry droplet.

• OSTI ID: 5966825
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
29 ENERGY PLANNING, POLICY, AND ECONOMY
294001 -- Energy Planning & Policy-- Coal
ADDITIVES
AGGLOMERATION
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
DISPERSIONS
DROPLETS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUEL OILS
FUEL SLURRIES
FUELS
HYDROGEN COMPOUNDS
LIQUID FUELS
MATERIALS
METALS
MIXTURES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PARTICLES
PETROLEUM PRODUCTS
SLURRIES
SPRAYS
SUSPENSIONS
THERMOCHEMICAL PROCESSES
WATER