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

Author

Listed:
  • 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
    Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic)

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.

Suggested Citation

  • Tomáš Ondro & Ivan Vitázek & Tomáš Húlan & Michael K. Lawson & Štefan Csáki, 2018. "Non-isothermal kinetic analysis of the thermal decomposition of spruce wood in air atmosphere," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 64(1), pages 41-46.
    • Handle: RePEc:caa:jnlrae:v:64:y:2018:i:1:id:115-2016-rae
    DOI: 10.17221/115/2016-RAE
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    References listed on IDEAS

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    1. Wenjia Jin & Kaushlendra Singh & John Zondlo, 2013. "Pyrolysis Kinetics of Physical Components of Wood and Wood-Polymers Using Isoconversion Method," Agriculture, MDPI, vol. 3(1), pages 1-21, January.
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