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THERMAL SCIENCE
International Scientific Journal
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OXYGEN-ENRICHED COMBUSTION OF LIGNITE
ABSTRACT
The study is concerned on the oxygen-enriched combustion kinetics of lignite.
Thermogravimetric experiments were carried out in a thermogravimetric analyzer under O2/N2 conditions, and operated at different heating rates ranging from 5 °C per minute to 25 °C per minute. Flynn-Wall-Ozawa method was used to calculate the kinetic parameter. The value of activation energy increased when the oxygen concentration varied from 21% to 70%.
Thermogravimetric experiments were carried out in a thermogravimetric analyzer under O2/N2 conditions, and operated at different heating rates ranging from 5 °C per minute to 25 °C per minute. Flynn-Wall-Ozawa method was used to calculate the kinetic parameter. The value of activation energy increased when the oxygen concentration varied from 21% to 70%.
KEYWORDS
PAPER SUBMITTED: 2015-01-15
PAPER REVISED: 2015-03-10
PAPER ACCEPTED: 2015-04-05
PUBLISHED ONLINE: 2015-10-25
DOI REFERENCE: https://doi.org/10.2298/TSCI1504389Z
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REFERENCES
[1] Yin, L. Q., et al., Lignite Resources and Utilization Outlook in China (in Chinese), Coal Science and Technology, 32 (2004), 2, pp. 12-14
[2] Mladenović, M. R. et al., Combustion of Low Grade Fractions of Lubnica Coal in Fluidized Bed, Thermal Science, 16 (2012), 1, pp. 297-311, 10.2298/tsci1201297m
[3] Sis, H., Application of Model-Free Methods for Analysis of Combustion Kinetics of Coals with Different Ranks, Energy Sources Part-A, 31 (2009), 12, pp. 1016-1027, 10.1080/15567030802089037
[4] Ceylan, S., Topcu, Y., Pyrolysis Kinetics of Hazelnut Husk Using Thermogravimetric Analysis, Bioresour. Technol., 156 (2014), 3, pp. 182-188, 10.1016/j.biortech.2014.01.040
[5] Morgan, P. A., et al., Combustion Studies by Thermogravimetric Analysis: 1. Coal Oxidation, Fuel, 65 (1986), 11, pp. 1546-1551, 10.1016/0016-2361(86)90331-5
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© 2026 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence