Ignition and combustion of coal particles
A subbituminous coal was used in this study. Particles from the 850 to 1000 ..mu.. sieve fraction were injected into a reaction furnace swept with air at temperature levels of 928/sup 0/, 980/sup 0/, 1076/sup 0/, 1118/sup 0/ and 1273/sup 0/K. The experimental technique, based upon the simultaneous measurement of the carbon monoxide, carbon dioxide, and the intensity of the light generated during the combustion, provides quantitative information about the ignition and the subsequent burn-off of the residual particle. Homogeneous ignition is detected at temperatures of 1076/sup 0/K and higher. The apparatus designed provides the special characteristics required in this study, and the transition between the ignition mechanisms is achieved within the range of operation conditions for this particular coal. The ignition mechanism is determined not only from the measurement of light intensity during the combustion, but also from the gas evolution curves. The results show the convenience of using these complementary techniques for the measurement of the ignition mechanism. 4 figures, 2 tables.
- Research Organization:
- Pennsylvania State Univ., University Park, PA
- OSTI ID:
- 5572854
- Report Number(s):
- CONF-830814-Vol.2
- Journal Information:
- Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States), Vol. 28:5; Conference: 186. national meeting of the American Chemical Society, Washington, DC, USA, 28 Aug 1983
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CARBON DIOXIDE
CHEMICAL REACTION YIELD
CARBON MONOXIDE
COAL
COMBUSTION KINETICS
IGNITION
OXYGEN
CHEMICAL REACTIONS
EXPERIMENTAL DATA
GAS CHROMATOGRAPHY
HIGH TEMPERATURE
QUANTITATIVE CHEMICAL ANALYSIS
TEMPERATURE DEPENDENCE
VERY HIGH TEMPERATURE
CARBON COMPOUNDS
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTION KINETICS
CHROMATOGRAPHY
DATA
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
INFORMATION
KINETICS
MATERIALS
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
SEPARATION PROCESSES
YIELDS
014000* - Coal
Lignite
& Peat- Combustion
400105 - Separation Procedures