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Title: Numerical modeling and experimental assessment of sustainable woody biomass torrefaction via coupled TG-FTIR
Authors: Silveira, Edgar A.
Luz, Sandra Maria
Leão, Rosineide M.
Rousset, Patrick
Pires, Armando Caldeira
Assunto:: Modelagem numérica
Torrefação
Biomassa
Issue Date: Mar-2021
Publisher: Elsevier
Citation: SILVEIRA, Edgar A. et al. Numerical modeling and experimental assessment of sustainable woody biomass torrefaction via coupled TG-FTIR. Biomass and Bioenergy, v. 146, 105981, mar. 2021. DOI: https://doi.org/10.1016/j.biombioe.2021.105981.
Abstract: 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.
DOI: https://doi.org/10.1016/j.biombioe.2021.105981
metadata.dc.relation.publisherversion: https://www.sciencedirect.com/science/article/pii/S0961953421000180?via%3Dihub
Appears in Collections:FGA - Artigos publicados em periódicos

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