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Slow Pyrolysis of Sugarcane Bagasse for the Production of Char and the Potential of Its By-Product for Wood Protection

Febrina Dellarose Boer1,2,3, Jérémy Valette1,2, Jean-Michel Commandré1,2, Mériem Fournier3,4, Marie-France Thévenon1,2,*

1 CIRAD, UR BioWooEB, TA B-114/16, 73 Rue Jean-François Breton, F-34398 Montpellier, Cedex 5, France
2 BioWooEB, Université de Montpellier, CIRAD, Montpellier, France
3 AgroParisTech Centre de Nancy, Nancy, 54000, France
4 Université de Lorraine, AgroParisTech, INRA, UMR Silva, Nancy, F-54000, France

* Corresponding Author: Marie-France Thévenon. Email: email

Journal of Renewable Materials 2021, 9(1), 97-117. https://doi.org/10.32604/jrm.2021.013147

Abstract

Sugarcane bagasse was pyrolyzed using a laboratory fixed bed reactor to produce char and its by-product (pyrolysis liquid). The pyrolysis experiments were carried out using different temperatures (400°C and 500°C), heating rate (1 °C/min and 10 °C/min), and holding time (30 min and 60 min). Char was characterized according to its thermal properties, while the pyrolysis liquid was tested for its anti-fungal and anti-termite activities. Pyrolysis temperature and heating rate had a significant influence on the char properties and the yield of char and pyrolysis liquid, where a high-quality char and high yield of pyrolysis liquid can be obtained at a temperature of 500°C and a heating rate of 10 °C/min. The yield of char and pyrolysis liquid was 28.97% and 55.46%, respectively. The principal compounds of pyrolysis liquid were water, acetic acid, glycolaldehyde, 1-hydroxy-2-propanone, methanol, formic acid, levoglucosan, furfural, followed by some phenol compounds and guaiacol derivatives. Pyrolysis liquid at a concentration of 0.20% and 0.25% (v/v) caused a 100% inhibition of Coniophora puteana and Trametes versicolor, respectively, when performing inhibition growth tests in Petri dishes. Filter paper treated with 10% of pyrolysis liquid caused 100% of termite mortality, while only 5.65%–7.03% of the treated filter papers consumed by termites at such concentration. Pyrolysis liquid is potentially effective to be used in the formulation of wood protection against fungi and termites.

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Boer, F. D., Valette, J., Commandré, J., Fournier, M., Thévenon, M. (2021). Slow Pyrolysis of Sugarcane Bagasse for the Production of Char and the Potential of Its By-Product for Wood Protection. Journal of Renewable Materials, 9(1), 97–117.

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