Volatile species release during torrefaction of wood and its macromolecular constituents: Part 1 - Experimental study

Nocquet Timothée, Dupont Capucine, Commandre Jean-Michel, Grateau Maguelone, Thiery Sébastien, Salvador Sylvain. 2014. Volatile species release during torrefaction of wood and its macromolecular constituents: Part 1 - Experimental study. Energy, 72 : 180-187.

Quartile : Outlier, Sujet : THERMODYNAMICS / Quartile : Q1, Sujet : ENERGY & FUELS

Résumé : Torrefaction tests were carried out in a thermobalance and in a lab-scale device on beechwood and on its constituents e cellulose, lignin and xylan. The main volatile species measured were water, formaldehyde, acetic acid and carbon dioxide. Thanks to measurement before volatiles condensation, the yield of formaldehyde was shown to be higher than usually observed in literature. Smaller amounts of methanol, carbon monoxide, formic acid and furfural were also quantified. Each constituent did not produce all species. Beech torrefaction could be described by the summative contribution of its three constituents up to 250 _C. At 280 _C and 300 _C, tests performed with constituents mixtures showed that there were interactions between cellulose and the two other constituents. A hypothetical mechanism was proposed to explain these interactions.

Mots-clés Agrovoc : bois, biomasse, Fagus sylvatica, cellulose, lignine, xylane, composition chimique, traitement thermique, formaldéhyde, oxyde de carbone, méthanol, acide formique, furfural, mesure (activité)

Mots-clés complémentaires : Bois torréfié, Torréfaction du bois

Classification Agris : K50 - Technologie des produits forestiers
P06 - Sources d'énergie renouvelable

Champ stratégique Cirad : Axe 2 (2014-2018) - Valorisation de la biomasse

Auteurs et affiliations

• Nocquet Timothée, CEA (FRA)
• Dupont Capucine, CEA (FRA)
• Commandre Jean-Michel, CIRAD-PERSYST-UPR BioWooEB (FRA) ORCID: 0000-0001-9094-7879
• Grateau Maguelone, CEA (FRA)
• Thiery Sébastien, CEA (FRA)
• Salvador Sylvain, Ecole des mines d'Albi (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/574745/)

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