Fate of fuel nitrogen in one-dimensional, subbituminous-coal-dust flames
Conference
·
OSTI ID:6036183
Experiments on the distribution of fuel nitrogen in two fuel-rich, pulverized-subbituminous-coal/O/sub 2//Ar flames stabilized on a flat-flame burner are reported. The gas-phase concentrations of HCN, NO, NH/sub 3/, N/sub 2/, and the major species as well as the solid-phase nitrogen content were measured as a function of reaction time. Particle and gas temperature profiles were obtained with an infrared pyrometer. Coal nitrogen evolution is more complete in the leaner flame. NO in the leaner flame and both HCN and NO in the richer flame account for most of the early gas-phase nitrogen, but N/sub 2/ predominates later in both flames. A rate constant for coal-nitrogen release determined from the solid-phase nitrogen data is presented.
- Research Organization:
- Kentucky Univ., Lexington (USA). Dept. of Mechanical Engineering
- DOE Contract Number:
- FG05-82ER75039
- OSTI ID:
- 6036183
- Report Number(s):
- CSS/CI-83-04; CONF-830358-14; ON: DE83012285
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
AMMONIA
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
COAL
COMBUSTION KINETICS
COMBUSTION PRODUCTS
COMBUSTION PROPERTIES
CYANIDES
DUSTS
ELEMENTS
ENERGY SOURCES
FLAMES
FOSSIL FUELS
FUELS
HYDRIDES
HYDROCYANIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
MATERIALS
MEASURING INSTRUMENTS
NITROGEN
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NITROGEN OXIDES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PYROMETERS
REACTION KINETICS
SUBBITUMINOUS COAL
TEMPERATURE MEASUREMENT
014000* -- Coal
Lignite
& Peat-- Combustion
AMMONIA
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
COAL
COMBUSTION KINETICS
COMBUSTION PRODUCTS
COMBUSTION PROPERTIES
CYANIDES
DUSTS
ELEMENTS
ENERGY SOURCES
FLAMES
FOSSIL FUELS
FUELS
HYDRIDES
HYDROCYANIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
MATERIALS
MEASURING INSTRUMENTS
NITROGEN
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NITROGEN OXIDES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PYROMETERS
REACTION KINETICS
SUBBITUMINOUS COAL
TEMPERATURE MEASUREMENT