A model for simultaneous heating and devolatilization of a single coal particle in a hot gas stream in the presence of a thermal radiative field

The model predicts particle mass, temperature, percent volatile matter evolved, temperature rise, and mass decrease rates as functions of time. The predicted time periods for evolution of 90% of volatile matter for a simulated coal are 233, 266, and 300 ms for particle diameters of 50, 75 and 100 mu...

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Veröffentlicht in:	A.E.Ch.E. J.; (United States) 1985-01, Vol.31 (10), p.1714-1717
Hauptverfasser:	Sandhu, S. S., Hashemi, H. R.
Format:	Artikel
Sprache:	eng
Schlagworte:	01 COAL, LIGNITE, AND PEAT 010406 - Coal & Coal Products- Pyrolysis & Cracking- (-1987) chemical industry coal COAL FINES DEVOLATILIZATION ELECTROMAGNETIC RADIATION ENERGY TRANSFER FLUID FLOW GAS FLOW gases HEAT TRANSFER HEATING LOSSES MASS MATHEMATICAL MODELS modeling PARTICLES PARTICULATES RADIANT HEAT TRANSFER RADIATION HEATING RADIATIONS TEMPERATURE MEASUREMENT THERMAL RADIATION THERMODYNAMICS TIME DEPENDENCE
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Beschreibung
Zusammenfassung:	The model predicts particle mass, temperature, percent volatile matter evolved, temperature rise, and mass decrease rates as functions of time. The predicted time periods for evolution of 90% of volatile matter for a simulated coal are 233, 266, and 300 ms for particle diameters of 50, 75 and 100 mu m, respectively.
ISSN:	0001-1541 1547-5905
DOI:	10.1002/aic.690311014