Self-heating can be understood and controlled
Journal Article
·
· J. Coal Qual.; (United States)
OSTI ID:5495630
A discussion of the phenomena of self-heating of coal was presented. Self-heating of coal is undesirable because it can lead to spontaneous combustion, generation of carbon monoxide, and a loss of calorific value. The coal characteristics known to have an effect on the self-heating tendency include rank, pyritic sulfur, particle size (surface area), and moisture content. The order of coal ranks for increasing self-heating tendency is anthracitic, bituminous, sub-bituminous, then lignitic. Self-heating tendency also increases with increasing content of pyritic sulfur, decreasing particle size, and decreasing moisture content. The external variables affecting the self-heating tendency of coals are external heat, accessibility of air, and external humidity.
- Research Organization:
- Technical Services, Ashland Coal, Inc.
- OSTI ID:
- 5495630
- Journal Information:
- J. Coal Qual.; (United States), Journal Name: J. Coal Qual.; (United States) Vol. 2:2; ISSN JCQUD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
COAL RANK
COMBUSTION
ENERGY
ENERGY SOURCES
FOSSIL FUELS
FUELS
HEAT
IRON COMPOUNDS
IRON SULFIDES
MATERIALS
MINERALS
MOISTURE
OXIDATION
PYRITE
SPONTANEOUS COMBUSTION
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
SURFACE AREA
SURFACE PROPERTIES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
010600* -- Coal
Lignite
& Peat-- Properties & Composition
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
COAL RANK
COMBUSTION
ENERGY
ENERGY SOURCES
FOSSIL FUELS
FUELS
HEAT
IRON COMPOUNDS
IRON SULFIDES
MATERIALS
MINERALS
MOISTURE
OXIDATION
PYRITE
SPONTANEOUS COMBUSTION
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
SURFACE AREA
SURFACE PROPERTIES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS