Fundamentals of coal combustion during injection into a blast furnace

The efficiency of coal combustion is important for the blast furnace process. Incomplete combustion of coal does not reduce coke consumption as can be expected and decreases burden permeability which results in improper gas flow and temperature distribution. Consequently, this reduces the throughput...

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Bibliographic Details
Published inProgress in energy and combustion science Vol. 17; no. 4; pp. 373 - 395
Main Authors Hutny, W.P., Lee, G.K., Price, J.T.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 1991
Elsevier Science
Subjects
Applied sciences
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Furnaces. Firing chambers. Burners
Solid and pulverized fuel burners and combustion chambers
Blast furnace
Coal
Reaction mechanism
Combustion
Injection
Experimental study
Mathematical model
Operating conditions
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Summary:The efficiency of coal combustion is important for the blast furnace process. Incomplete combustion of coal does not reduce coke consumption as can be expected and decreases burden permeability which results in improper gas flow and temperature distribution. Consequently, this reduces the throughput of the blast furnace. This paper describes combustion conditions and mechanisms of coal combustion in the blast furnace, and discusses factors affecting coal combustion such as injector location, coal type, injection rate, maceral composition, and air blast parameters. Also, mathematical models of coal and coal/coke combustion in the blast furnace are considered.
ISSN:0360-1285
1873-216X
DOI:10.1016/0360-1285(91)90008-B