Study of thermal decomposition process and the reaction mechanism of the eucalyptus wood

Study of thermal decomposition process and the reaction mechanism of the eucalyptus wood The mass loss of eucalyptus wood was measured against time and temperature at four different heating rates (5, 10, 15, 20 °C/min), in nitrogen environment, through thermogravimetry analysis technique. These measurements revealed that the decomposition of wood samples occurred in three stages (dehydration stage, active stage and passive stage), and the maximum decomposition peak in DTG curve shifted towards higher temperature range with increase in heating rate. In addition, the decomposition kinetic parameters were determined by adopting two thermal kinetic methods viz. Flynn–Wall–Ozawa and modified Coats and Redfern. Further, from the master curves (generated through different values of g(α) and f(α)) and experimental curve obtained using the Criado method, the kinetic mechanism involved in the pyrolysis of the eucalyptus wood was commented. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Wood Science and Technology Springer Journals

Study of thermal decomposition process and the reaction mechanism of the eucalyptus wood

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Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2017 by Springer-Verlag Berlin Heidelberg
Subject
Life Sciences; Wood Science & Technology; Ceramics, Glass, Composites, Natural Materials; Operating Procedures, Materials Treatment
ISSN
0043-7719
eISSN
1432-5225
D.O.I.
10.1007/s00226-017-0924-7
Publisher site
See Article on Publisher Site

Abstract

The mass loss of eucalyptus wood was measured against time and temperature at four different heating rates (5, 10, 15, 20 °C/min), in nitrogen environment, through thermogravimetry analysis technique. These measurements revealed that the decomposition of wood samples occurred in three stages (dehydration stage, active stage and passive stage), and the maximum decomposition peak in DTG curve shifted towards higher temperature range with increase in heating rate. In addition, the decomposition kinetic parameters were determined by adopting two thermal kinetic methods viz. Flynn–Wall–Ozawa and modified Coats and Redfern. Further, from the master curves (generated through different values of g(α) and f(α)) and experimental curve obtained using the Criado method, the kinetic mechanism involved in the pyrolysis of the eucalyptus wood was commented.

Journal

Wood Science and TechnologySpringer Journals

Published: May 22, 2017

References

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