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A Study of Chemical Properties and Fusibility of Korean Anthracite Coal Ash
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1992, v.5 no.4, pp.433-441
Park,
C., Lee,
S., &
Shon,
E.
(1992). A Study of Chemical Properties and Fusibility of Korean Anthracite Coal Ash. Analytical Science and Technology, 5(4), 433-441.
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Abstract
Chemical composition and fusibility of coal ash were measured for 23 Korean anthracite coals. The relationship between chemical properties and fusion temperature of coal ash was investigated. The slagging and fouling in firing the pulverized coal for boiler was assessed for the coal samples. It was found that most ashes contained more than 80% of <TEX>$SiO_2$</TEX> and <TEX>$Al_2O_3$</TEX> whereas less than 1% of <TEX>$Na_2O$</TEX>. And also fusion temperature of ashes occured relatively higher for Korean coals. Therefore it can be predictable that the slagging and fouling formation has a little problem in a pulverized coal firing system. A base/acid ratio did show a good correlation with fusion temperature for these coal ashes.
- keywords
- Coal ash, Slagging, Fouling, Fusion temperature, Base/acid ratio
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