SO3 formation during oxy-coal combustion - Presentation

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Publication Type presentation
School or College University of Utah
Research Institute Institute for Clean and Secure Energy (ICSE)
Author Ahn, Jiyoung; Overacker, Dana; Okerlund, Ryan; Fry, Andrew; Eddings, Eric G.
Title SO3 formation during oxy-coal combustion - Presentation
Date 2010-06-10
Description In oxy-coal combustion, an oxygen and carbon dioxide mixture, rather than air, is used to burn the coal. Many studies to date have focused on the formation of NOx under oxy-coal combustion conditions; however, the formation of sulfur species, particularly sulfur trioxide, is currently not a wellunderstood problem in oxy-coal combustion. In conventional combustion with air, fuel-bound sulfur species are oxidized primarily to sulfur dioxide, with a small fraction being converted to sulfur trioxide. Due to the increased oxygen concentration in oxy-fuel combustion, it is possible that a greater fraction of the sulfur dioxide can be oxidized to sulfur trioxide in the flue gas. Because sulfur trioxide is very corrosive and can form sulfuric acid with water vapor in flue gas, it is important to understand and to be able to predict the amount of sulfur trioxide formed during oxy-fuel combustion. The purpose of this study is to investigate the effects of increased oxygen and carbon dioxide concentration on the formation of sulfur trioxide during oxy-coal combustion. ASTM method D3226-73T (also called the Controlled Condensation Method) was used to measure sulfur trioxide in pilot-scale experiments, for both air- and oxy-fired conditions, and the results are compared with anticipated performance based on thermochemical and kinetic calculations.
Publisher University of Utah, Institute for Clean and Secure Energy
Subject SO3; oxy-coal combustion; controlled condensation method; sulfur combustion; pilot-scale combustor
Language eng
Bibliographic Citation Ahn, J., Overacker, D., Okerlund, R., Fry, A., Eddings, E. G. (2010). SO3 formation during oxy-coal combustion. Presentation: 35th International Technical Conference on Clean Coal and Fuel Systems, June 6-10, 2010, Clearwater, Florida. University of Utah, Institute for Clean and Secure Energy.
Relation Has Part Presentation: 35th International Technical Conference on Clean Coal and Fuel Systems, June 6-10, 2010, Clearwater, Florida
ARK ark:/87278/s6hq6z42
Setname ir_eua
Date Created 2015-04-22
Date Modified 2015-04-22
ID 214654
Reference URL https://collections.lib.utah.edu/ark:/87278/s6hq6z42
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