Título :	Simulation and thermodynamic evaluation of woody biomass waste torrefaction
Autor :	Gonzales, Thiago da Silva Silva, Simone Monteiro e Lamas, Giulia Cruz Rodrigues, Pedro Paulo de Oliveira Siqueira, Mario B. B. Romero, Luis Alberto Follegatti Silveira, Edgar Amaral
metadata.dc.identifier.orcid:	https://orcid.org/0000-0001-6493-3131 https://orcid.org/0000-0002-2774-1656 https://orcid.org/0000-0002-5596-833X
metadata.dc.contributor.affiliation:	University of Brasília, Mechanical Sciences Graduate Program, Laboratory of Energy and Environment University of Brasília, Mechanical Sciences Graduate Program, Laboratory of Energy and Environment University of Brasília, Mechanical Sciences Graduate Program, Laboratory of Energy and Environment University of Brasília, Mechanical Sciences Graduate Program, Laboratory of Energy and Environment University of Brasília, Mechanical Sciences Graduate Program, Laboratory of Energy and Environment University of Brasília, Mechanical Sciences Graduate Program, Laboratory of Energy and Environment University of Brasília, Mechanical Sciences Graduate Program, Laboratory of Energy and Environment
Assunto::	Biomassa Energia Modelagem cinética Umidade Química teórica e computacional
Fecha de publicación :	21-ene-2025
Editorial :	American Chemical Society
Citación :	GONZALES, Thiago da Silva et al. Simulation and thermodynamic evaluation of woody biomass waste torrefaction. ACS Omega 2025, 10, 3585−3597. DOI: https://doi.org/10.1021/acsomega.4c08299. Disponível em: https://pubs.acs.org/doi/10.1021/acsomega.4c08299. Acesso em: 22 jan. 2026.
Abstract:	Torrefaction is a thermochemical pretreatment that enhances biomass properties, improving energy density, decomposition resistance, and hydrophobicity, making it a viable alternative as biofuel. This study performed a thermodynamic assessment of the torrefaction process for urban forest waste, integrating experimental data with two-step reaction kinetic modeling to evaluate the torrefaction product yields and properties using Aspen Plus software. The process was modeled with a yield reactor, employing the Peng−Robinson equation to describe vapor-phase behavior and empirical correlations to predict solid-phase properties. Simulations were validated against experimental data for temperatures between 225 and 275 °C, achieving an absolute deviation of less than 5%. Energy consumption ranged from 368 kJ·h−1 for light torrefaction to 1853 kJ·h−1 for severe torrefaction. Process irreversibility varied from 326 kJ·h−1 (3% exergy destruction) in light torrefaction to 3993 kJ·h−1 (16% exergy destruction) in severe torrefaction. The research provides a robust model for torrefaction scale-up that is adaptable to diverse biomass feedstocks and process conditions, highlighting its potential for optimizing energy use and improving sustainability in biomass utilization.
metadata.dc.description.unidade:	Faculdade de Tecnologia (FT) Departamento de Engenharia Mecânica (FT ENM)
Descripción :	MATERIAL COMPLEMENTAR - The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acsomega.4c08299. Biomass modeling with correlations for density, calorific value, and heat capacity; torrefaction modeling with a reaction model, kinetic parameters, and volatiles composition; and exergy analysis with the chemical exergy of elements and compounds.
metadata.dc.description.ppg:	Programa de Pós-Graduação em Ciências Mecânicas
Licença::	This article is licensed under CC-BY 4.0
DOI:	https://doi.org/10.1021/acsomega.4c08299
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