Summary
Laboratory measurements of coal rapid pyrolysis char yield and char reactivity, together with a simple model of pulverized coal combustion, have been used to predict coal combustion efficiency in utility boilers. Several bituminous coals were tested and found to burn out to different extents under boiler conditions. Burnout performance did not correlate well with proximate volatile matter content.
Burnout predictions agreed with measured power station data for three coals. Model calculations showed that furnace residence time distribution and excess air are parameters strongly affecting burnout. Grind fineness (% w < 75 micron) has a potentially large affect on combustion efficiency but the extent to which this is realized in practice depends on the mill classification characteristics.
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© 1987 Martinus Nijhoff Publishers, Dordrecht
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Roberts, P.T., Morley, C. (1987). Practical Use of Coal Combustion Research. In: Lahaye, J., Prado, G. (eds) Fundamentals of the Physical-Chemistry of Pulverized Coal Combustion. NATO ASI Series, vol 137. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3661-4_20
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DOI: https://doi.org/10.1007/978-94-009-3661-4_20
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8138-2
Online ISBN: 978-94-009-3661-4
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