Res. Agr. Eng., 2018, 64(1):41-46 | DOI: 10.17221/115/2016-RAE

Non-isothermal kinetic analysis of the thermal decomposition of spruce wood in air atmosphereOriginal Paper

Tomáš Ondro*,1, Ivan Vitázek2, Tomáš Húlan1, Michael K. Lawson3, Štefan Csáki1,4
1 Department of Physics, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic
2 Department of Transport and Handling, Faculty of Engineering, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
3 Department of Chemistry, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic
4 Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic

Thermal decomposition of spruce wood (Picea abies) was studied using the thermogravimetric (TG) analysis in air atmosphere from 30°C to 600°C with the heating rates of 5, 10, 15, 20, 25 and 30°C.min-1. The TG results show that the main decomposition region is in the temperature range of 250-360°C, where a total disintegration of hemicellulose and cellulose with partial lignin decomposition can be observed. The values of apparent activation energy for this process are between 168.6-196.5 kJ.mol-1, 179.8-188.1 kJ.mol-1 and 170.1-178.7 kJ.mol-1 determined by the Friedman, Flynn-Wall-Ozawa and Kissinger-Akahira-Sunose methods, respectively.

Keywords: apparent activation energy; spruce wood; thermal decomposition; wood biomass

Published: March 31, 2018  Show citation

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Ondro T, Vitázek I, Húlan T, Lawson MK, Csáki Š. Non-isothermal kinetic analysis of the thermal decomposition of spruce wood in air atmosphere. Res. Agr. Eng. 2018;64(1):41-46. doi: 10.17221/115/2016-RAE.
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