Influence of fuel composition and flame temperature on the formation of thermal and fuel NOx in residual oil flames

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Publication Type Journal Article
School or College College of Engineering
Department Chemical Engineering
Creator Pershing, David W.
Other Author Cichanowicz, J. E.; England, G. C.; Heap, M. P.; Martin, G. B.
Title Influence of fuel composition and flame temperature on the formation of thermal and fuel NOx in residual oil flames
Date 1979
Description A 900 kw model package boiler and a 20 kw laboratory tunnel furnace were used to study fuel and thermal NO, formation during heavy oil combustion. Package boiler results indicated that atomizer design, spray/ flow field interactions, and fuel composition were significant, dependent parameters. These effects were then investigated in detail in the laboratory furnace. One distillate and nine heavy oils were studied. Fuel NO.,., isolated with an argon/oxygen/carbon dioxide oxidant, was found to be a major source of NOx emissions. Fuel NOx formation increased approximately linearily with increasing nitrogen content from 0.05 to 0.79 wt. percent nitrogen. Fuel nitrogen oxidation was insensitive to temperature changes (over the theoretical temperature range of 2100 to 2500°K) except for one oil which exhibited a sudden increase at the highest temperature. Fuel NOx was insensitive to drop size, but thermal NOx increased with decreased mean droplet size. Percentage conversion of bound nitrogen decreased with increasing nitrogen content except for one oil containing substantial refractory nitrogen. Doping studies indicated that fuel sulfur can enhance fuel NOx formation and that nitrogen and hydrocarbon volatility are not first order parameters with a rapid mix burner under fuel-lean conditions.
Type Text
Publisher Combustion Institute
First Page 715
Last Page 725
Subject Residual oil flames
Subject LCSH Heavy oil -- Combustion; Nitrogen oxides
Language eng
Bibliographic Citation Pershing, D. W., Cichanowicz, J. E., England, G. C., Heap, M. P., & Martin, G. B. (1979). Influence of fuel composition and flame temperature on the formation of thermal and fuel NOx in residual oil flames. Seventeenth Symposium (International) on Combustion, Pittsburgh, PA., 715-25.
Rights Management (c)Combustion Institute
Format Medium application/pdf
Format Extent 4,337,749 bytes
Identifier ir-main,775
ARK ark:/87278/s625229g
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2012-06-13
ID 702564
Reference URL https://collections.lib.utah.edu/ark:/87278/s625229g
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