A study of spontaneous combustion characteristics of a turkish lignite: particle size, moisture of coal, humidity of air

This study evaluated the spontaneous combustion characteristics of Askale lignite from Turkey. The effect of the gas flow rate, the moisture of the piles of coal, the humidity of the air and particle size on the spontaneous combustion characteristics of coal samples were examined using Crossing Poin...

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Bibliographic Details
Published inCombustion and flame Vol. 133; no. 3; pp. 255 - 261
Main Authors Küçük, A., Kadıoğlu, Y., Gülaboğlu, M.Ş.
Format Journal Article
LanguageEnglish
Published New York, NY Elsevier Inc 01.05.2003
Elsevier Science
Subjects
Applied sciences
Combustion of solid fuels
Combustion. Flame
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Lignite
Moisture
Particle size
Spontaneous combustion
Theoretical studies. Data and constants. Metering
Asia
Turkey
Spontaneous combustion
Particle size
Lignite
Moisture
Combustion
Air humidity
Water content
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Summary:This study evaluated the spontaneous combustion characteristics of Askale lignite from Turkey. The effect of the gas flow rate, the moisture of the piles of coal, the humidity of the air and particle size on the spontaneous combustion characteristics of coal samples were examined using Crossing Point Methods adapted to our laboratories conditions. The amounts of three predominant oxygen functional groups (carboxyl, hydroxyl and carbonyl) in untreated and moist coal samples were also determined with wet chemical methods. The amounts of oxygen functional groups in moist coal samples do not differ significantly from that of untreated coal. The liability of spontaneous combustion of this lignite was increased with decreasing particle size, increasing moisture content of the coal and decreasing humidity of the air.
ISSN:0010-2180
1556-2921
DOI:10.1016/S0010-2180(02)00553-9