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Open AccessArticle

Combustion of Flax Shives, Beech Wood, Pure Woody Pseudo-Components and Their Chars: A Thermal and Kinetic Study

1
Laboratoire de Sécurité des Procédés Chimiques LSPC-4704, INSA Rouen, UNIROUEN, Normandie Univ., 76000 Rouen, France
2
Faculté de Génie des Procédés Université de Constantine 3, 25000 Constantine, Algeria
*
Author to whom correspondence should be addressed.
Energies 2018, 11(8), 2146; https://doi.org/10.3390/en11082146
Received: 30 June 2018 / Revised: 4 August 2018 / Accepted: 15 August 2018 / Published: 17 August 2018
(This article belongs to the Special Issue Biomass Chars: Elaboration, Characterization and Applications Ⅱ)
Thermogravimetric analysis was employed to investigate the combustion characteristics of flax shives, beech wood, hemicellulose, cellulose, lignin, and their chars. The chars were prepared from raw materials in a fixed-bed reactor at 850 °C. In this study, the thermal behavior based on characteristic temperatures (ignition, maximum, and final temperatures), burnout time and maximum rate was investigated. The kinetic parameters for the combustion of different materials were determined based on the Coats-Redfern approach. The results of our study revealed that the combustion of pure pseudo-components behaved differently from that of biomass. Indeed, principal component analysis showed that the thermal behavior of both biomasses was generally similar to that of pure hemicellulose. However, pure cellulose and lignin showed different behaviors compared to flax shives, beech wood, and hemicellulose. Hemicellulose and cellulose chars had almost the same behaviors, while being different from biomass and lignin chars. Despite the difference between flax shives and beech wood, they showed almost the same thermal characteristics and apparent activation energies. Also, the combustion of the hemicellulose and cellulose chars showed that they have almost the same structure. Their overall thermal and kinetic behavior remained between that of biomass and lignin. View Full-Text
Keywords: biomass; combustion; thermogravimetric analysis; kinetic parameters; thermal characteristics biomass; combustion; thermogravimetric analysis; kinetic parameters; thermal characteristics
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Boukaous, N.; Abdelouahed, L.; Chikhi, M.; Meniai, A.-H.; Mohabeer, C.; Bechara, T. Combustion of Flax Shives, Beech Wood, Pure Woody Pseudo-Components and Their Chars: A Thermal and Kinetic Study. Energies 2018, 11, 2146.

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