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

Tomáš Ondro, Ivan Vitázek, Tomáš Húlan, Michael K. Lawson and Štefan Csáki
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Tomáš Ondro: Department of Physics, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic
Ivan Vitázek: Department of Transport and Handling, Faculty of Engineering, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
Tomáš Húlan: Department of Physics, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic
Michael K. Lawson: Department of Chemistry, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic
Štefan Csáki: Department of Physics, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic

Research in Agricultural Engineering, 2018, vol. 64, issue 1, 41-46

Abstract: 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 (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlrae:v:64:y:2018:i:1:id:115-2016-rae

DOI: 10.17221/115/2016-RAE

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