Numerical modeling and experimental assessment of sustainable woody biomass torrefaction via coupled TG-FTIR
Torrefaction is an inert thermal process (up to 300 °C) that promotes changes in the chemical and physical properties of biomass, decreasing the time and energy required for biomass conversion. In this work, an online method - TG coupled with FTIR - and elemental analysis were applied to acquire data in order to perform an experimental and numerical thermal upgrading assessment of Eucalyptus grandis, and in turn study the torrefaction mechanism. A thermal sensitivity numerical model was employed to obtain two-step reaction kinetic rates and solid and volatile compositions. The FTIR results added new perceptions that correlate and validate the solid and volatile pseudo-component distribution, the solid elemental composition prediction, devolatilization, and solid HHV estimation. As a result, the 2D property mapping allowed for a qualitative and quantitative assessment of all torrefaction severities. The obtained kinetics and the response diagrams from the numerical results can provide valuable references for practical operations and reactor design.
| Auteurs principaux: | , , , , |
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| Format: | article biblioteca |
| Langue: | eng |
| Sujets: | K50 - Technologie des produits forestiers, Eucalyptus grandis, densité du bois, modélisation, mesure (activité), torréfaction, composition chimique, technique de prévision, http://aims.fao.org/aos/agrovoc/c_2693, http://aims.fao.org/aos/agrovoc/c_24549, http://aims.fao.org/aos/agrovoc/c_230ab86c, http://aims.fao.org/aos/agrovoc/c_4668, http://aims.fao.org/aos/agrovoc/c_28596, http://aims.fao.org/aos/agrovoc/c_1794, http://aims.fao.org/aos/agrovoc/c_3041, http://aims.fao.org/aos/agrovoc/c_1070, |
| Accès en ligne: | http://agritrop.cirad.fr/597529/ http://agritrop.cirad.fr/597529/1/Numerical%20modeling%20edgar%20BB%202021.pdf |
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