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Slow pyrolysis of sugarcane bagasse for the production of char and the potential of its by-product for wood protection

Dellarose Febrina, Valette Jérémy, Commandre Jean-Michel, Fournier Meriem, Thévenon Marie-France. 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) : pp. 97-117.

Journal article ; Article de recherche ; Article de revue à facteur d'impact Revue en libre accès total
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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.

Mots-clés Agrovoc : Pyrolyse, Bagasse, Produit de préservation du bois, Préservation du bois, Carbonisation du bois, Propriété antifongique

Mots-clés complémentaires : liquide de pyrolyse

Mots-clés libres : Sugarcane bagasse, Slow pyrolysis, Fungi, Termite, Pyrolysis liquid

Classification Agris : Q70 - Processing of agricultural wastes

Champ stratégique Cirad : CTS 7 (2019-) - Hors champs stratégiques

Auteurs et affiliations

  • Dellarose Febrina, CIRAD-PERSYST-UPR BioWooEB (FRA)
  • Valette Jérémy, CIRAD-PERSYST-UPR BioWooEB (FRA)
  • Commandre Jean-Michel, CIRAD-PERSYST-UPR BioWooEB (FRA) ORCID: 0000-0001-9094-7879
  • Fournier Meriem, Université de Lorraine (FRA)
  • Thévenon Marie-France, CIRAD-PERSYST-UPR BioWooEB (FRA) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/597112/)

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