Abstract
To develop accurate predictive models for coal combustion or gasification, it is necessary to know the rate and amount of volatiles release as a function of the particle temperature. The volatiles, which can account for up to 70% of the coal’s weight loss, control the ignition, the temperature and the stability of the flame, which can, in turn, affect the subsequent reactivity and burnout of the char. Unfortunately, there is still controversy concerning the rate of coal pyrolysis. For example, at particle temperatures estimated to be 800°C, rates reported in the literature (derived using a single first-order process to define weight loss or tar evolution) vary from less than 1 s-1 1–4 to more than 100 s-1 5–11 with values in between.12–14
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© 1987 Martinus Nijhoff Publishers, Dordrecht
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Solomon, P.R., Serio, M.A. (1987). Evaluation of Coal Pyrolysis Kinetics. 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_5
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DOI: https://doi.org/10.1007/978-94-009-3661-4_5
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