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Modeling of NOx emissions from fluidized bed combustion of high volatile lignites
Date
2007-01-01
Author
Afacan, Onur
Gogebakan, Yusuf
Selçuk, Nevin
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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A comprehensive model, previously developed and tested for prediction of behavior of continuous fluidized bed combustors is extended to incorporate NOx formation and reduction reactions and applied to the simulation of Middle East Technical University (METU) 0.3 MW Atmospheric Bubbling Fluidized Bed Combustor (ABFBC) burning lignites with high Volatile Matter/Fixed Carbon (VM/FC) ratios in their own ashes. Favorable comparisons are obtained between the predicted and measured temperatures and concentrations of gaseous species along the combustor. Results show that determination of partitioning of coal nitrogen into char-N and volatile-N, char combustion rate, and amount of volatile nitrogen released along the combustor are found to be the most important parameters that affect NO formation and reduction in bubbling fluidized bed combustors.
Subject Keywords
Fluidized bed combustion
,
Lignite
,
Mathematical modeling
,
NOx emissions
URI
https://hdl.handle.net/11511/30255
Journal
COMBUSTION SCIENCE AND TECHNOLOGY
DOI
https://doi.org/10.1080/00102200600809191
Collections
Graduate School of Natural and Applied Sciences, Article