Parameters influencing the evolution and oxidation of sulfur in suspension phase coal combustion

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Publication Type Journal Article
School or College College of Engineering
Department Chemical Engineering
Creator Pershing, David W.; Slaughter, David Michael
Other Author Drehmel, D. C.; Martin, G. B.
Title Parameters influencing the evolution and oxidation of sulfur in suspension phase coal combustion
Date 1983
Description Stoker coal-fired boiler furnaces are significant in terms of coal consumption and environmental impact; however, they have received relatively little research attention. This paper describes the results of a two-year study on the formation of sulfur oxides in the suspension phase of a coal-fired spreader-stoker system. An eight foot, drop-tube furnace with upward hot-gas flow was used to define the evolution and oxidation of fuel sulfur in the suspension phase and to establish the influence of the combustion parameters on S02 formation. The results indicate that coal particles greater than approximately 0.1 inch fall to the stoker grate essentially unreacted. Thus, only between 8 and 20 percent of the coal feed actually burns in the suspension phase. In general, the evolution and oxidation of sulfur lags hydrogen but leads carbon. The behavior of the organic sulfur closely follows that of carbon; however, the decomposition of the sulfate sulfur depends primarily on the local temperature and oxygen concentration. The behavior of the sulfate sulfur is of major importance because of the high sulfate content of the natural coal fines.
Type Text
Publisher Combustion Institute
First Page 1321
Last Page 1329
Subject Stoker coal-fired furnaces
Subject LCSH Coal-fired furnaces; Coal-fired furnaces -- Environmental aspects; Coal -- Combustion; Sulfur oxides; Sulfur -- Oxidation
Language eng
Bibliographic Citation Slaughter, D. M., Pershing, D. W., Drehmel, D. C., & Martin, G. B. (1983). Parameters influencing the evolution and oxidation of sulfur in suspension phase coal combustion. Nineteenth Symposium (International) on Combustion, Pittsburgh, PA., 1321-9
Rights Management (c)Combustion Institute
Format Medium application/pdf
Format Extent 4,433,766 bytes
Identifier ir-main,779
ARK ark:/87278/s6cg07n5
Setname ir_uspace
ID 706041
Reference URL https://collections.lib.utah.edu/ark:/87278/s6cg07n5
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