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Pyrolysis activation energy of cellulosic fibres investigated by a method derived from the first order global model
Liang, Yunhao Hine, Peter Ries, Michael
Liang, Yunhao
Hine, Peter
Ries, Michael
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2022-12-30
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Abstract
The pyrolysis kinetics of cellulosic fibres, a natural cotton yarn (NCY) and a mercerized cotton yarn (MCY), has been explored with a modified first order global analysis method (FOG), via a series of non-isothermal experiments, using thermogravimetric analysis (TGA). The modified FOG analysis routine was developed to overcome discrepancy in heating rate and the difference between exact results and approximations in integrals. The intrinsic pyrolysis activation energy, with temperature range tending to zero, was found to be independent of heating rate and approximation used, giving average values of 153 ± 2 kJ/mol for NCY and 192 ± 7 kJ/mol for MCY. This proves the applicability of the reported analysis routine under the conducted TGA measurements. The reasons for different values were hypothesized to be the difference in chemical composition and crystalline
structure. The findings provide a new approach in the investigation on pyrolysis kinetics of biomass and factors impacting their pyrolytic behaviour.
Citation
Liang, Y., Ries, M. E., & Hine, P. J. (2023). Pyrolysis activation energy of cellulosic fibres investigated by a method derived from the first order global model. Carbohydrate Polymers, 305, 120518. https://doi.org/10.1016/j.carbpol.2022.120518
Publisher
Elsevier
Journal
Carbohydrate Polymers
Research Unit
DOI
10.1016/j.carbpol.2022.120518
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Article
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© 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license
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ISSN
0144-8617
EISSN
1879-1344