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Original Articles

Char Combustion: Measurement and Analysis of Particle Temperature Histories

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Pages 215-230 | Received 14 Dec 1987, Accepted 17 May 1988, Published online: 27 Apr 2007
 

Abstract

—Single particle combustion experiments were carried out with 50-100 μm char particles derived from one lignite and one HVA bituminous coal. Reactor wall temperatures in the range 1050 K to 1450 K and oxygen partial pressures of 0.21 and 0.5 were used. The complete temperature-time histories of individual burning particles were measured using two-color optical pyrometry techniques. Apparent combustion rate parameters of the chars were then estimated using a model of single particle combustion and taking into account the random particle-to-particle property variation.

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