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Published 1988 | public
Journal Article

Char Combustion: Measurement and Analysis of Particle Temperature Histories

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.

Additional Information

© 1988 Gordon and Breach Science Publishers, Inc. Received December 14, 1987; in final form May 17, 1988. This work was supported by the U.S. Department of Energy under contract DE-AC2284FC70915. The authors also wish to thank Dr Yiannis Levendis for help with the pyrometry experiments.

Additional details

Created:
August 19, 2023
Modified:
October 25, 2023