An assessment of biomass torrefaction severity indexes

Silveira Edgar A., Luz Sandra, Candelier Kévin, Macedo Lucélia, Rousset Patrick. 2021. An assessment of biomass torrefaction severity indexes. Fuel, 13 p.

Quartile : Q1, Sujet : ENERGY & FUELS / Quartile : Q1, Sujet : ENGINEERING, CHEMICAL

Résumé : Previous studies have quantified the efficiency of biomass torrefaction processes by proposing severity indexes to discuss the variability of thermally modified biomass properties. However, comparisons of the accuracy and applicability of those indexes are few in the literature. To fill that gap, this study sought to assess five indexes usually applied in some torrefaction studies: weight loss, index of torrefaction, torrefaction severity index, severity factor, and torrefaction severity factor. These indexes were compared to characterize torrefaction under different conditions, and their accuracy in evaluating, correlating and predicting the physical, chemical and energetical properties of torrefied eucalyptus. As a result, the five evaluated indexes presented R2 > 0.84 and-values ≤ 0.05 when evaluating basic properties. For all five indexes, there was a statistical significance when evaluating energy performance and R2 > 0.81. The three yield property-based indexes were more effective in predicting torrefied product properties and energy performance parameters. The two operating condition-based indexes were more effective in analyzing solid product properties than devolatilization. This work provided insight into which index is more appropriate for research and industrial applications.

Mots-clés Agrovoc : torréfaction, biomasse, Eucalyptus grandis, évaluation des technologies

Mots-clés libres : Indexes of torrefaction, Eucalyptus grandis wood, Torrefaction performance, Linear regression

Classification Agris : K50 - Technologie des produits forestiers
P05 - Ressources énergétiques et leur gestion

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

Auteurs et affiliations

• Silveira Edgar A., UNB [Universidade de Brasilia] (BRA) - auteur correspondant
• Luz Sandra, UNB [Universidade de Brasilia] (BRA)
• Candelier Kévin, CIRAD-PERSYST-UPR BioWooEB (FRA) ORCID: 0000-0002-9328-8511
• Macedo Lucélia, Laboratory of Forest Products (BRA)
• Rousset Patrick, CIRAD-PERSYST-UPR BioWooEB (THA) ORCID: 0000-0002-6956-7465

Source : Cirad-Agritrop (https://agritrop.cirad.fr/596971/)

Métriques

[ Page générée et mise en cache le 2024-12-01 ]