Unlocking the potential of pequi (Caryocar brasiliense) residues for bioenergy and renewable chemicals: Multicomponent kinetic modeling, thermodynamic parameter estimation, and characterization of volatile products through TGA and Py-GC/MS experiments

Mumbach, Guilherme Davi; da Silva, Jean Constantino Gomes; Di Domenico, Michele; Liborio, Denisson de Oliveira; Pacheco, Jose Geraldo Andrade; Alves, José Luiz Francisco

doi:10.1016/j.indcrop.2023.117928

Industrial Crops and Products

2024

DOI: 10.1016/j.indcrop.2023.117928

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Unlocking the potential of pequi (Caryocar brasiliense) residues for bioenergy and renewable chemicals: Multicomponent kinetic modeling, thermodynamic parameter estimation, and characterization of volatile products through TGA and Py-GC/MS experiments

Guilherme Davi Mumbach,

Jean Constantino Gomes da Silva,

Michele Di Domenico

et al.

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Cited by 4 publications

References 73 publications

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Effect of leaching and catalytic decomposition on the kinetics and thermodynamics of rice husk pyrolysis

Díaz-Tovar,

Molina,

Moreno

2025

Biomass and Bioenergy

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Effect of leaching and catalytic decomposition on the kinetics and thermodynamics of rice husk pyrolysis

Díaz-Tovar,

Molina,

Moreno

2025

Biomass and Bioenergy

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Biofuel from agro-industrial residues as sustainable strategy for CO2 mitigation: Statistical optimization of pequi seeds torrefaction

Silveira,

Barcelo,

Cruz Lamas

et al. 2024

Energy Conversion and Management

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Analysis of the Pyrolysis Kinetics, Reaction Mechanisms, and By-Products of Rice Husk and Rice Straw via TG-FTIR and Py-GC/MS

Lin,

Sun

et al. 2024

Molecules

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This study employed thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), and pyrolysis gas chromatography/mass spectrometry (Py-GC/MS) to characterize and provide insights into the pyrolysis behaviors and by-products of rice husk (RH) and rice straw (RS). The primary pyrolysis range is partitioned into three stages, designated as pseudo-hemicellulose, pseudo-cellulose, and pseudo-lignin pyrolysis, by an asymmetric bi-Gaussian function. The average activation energies of the three pseudo-components of RH were estimated by the Flynn–Wall–Ozawa and Starink methods to be 179.1 kJ/mol, 187.4 kJ/mol, and 239.3 kJ/mol, respectively. The corresponding values for RS were 171.8 kJ/mol, 185.8 kJ/mol, and 203.2 kJ/mol. The results of the model-fitting method indicated that the diffusion model is the most appropriate for describing the pseudo-hemicellulose reaction. The reaction of pseudo-cellulose and pseudo-lignin is most accurately described by a nucleation mechanism. An accelerated heating rate resulted in enhanced pyrolysis performance, with RS exhibiting superior performance to that of RH. RH produces 107 condensable pyrolysis by-products, with ketones, acids, and phenols representing the largest proportion; RS produces 135 species, with ketones, phenols, and alcohols as the main condensable by-products. These high-value added by-products have the potential to be utilized in a variety of applications within the agricultural, bioenergy, and chemical industries.

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Unlocking the potential of pequi (Caryocar brasiliense) residues for bioenergy and renewable chemicals: Multicomponent kinetic modeling, thermodynamic parameter estimation, and characterization of volatile products through TGA and Py-GC/MS experiments

Cited by 4 publications

References 73 publications

Effect of leaching and catalytic decomposition on the kinetics and thermodynamics of rice husk pyrolysis

Effect of leaching and catalytic decomposition on the kinetics and thermodynamics of rice husk pyrolysis

Biofuel from agro-industrial residues as sustainable strategy for CO2 mitigation: Statistical optimization of pequi seeds torrefaction

Analysis of the Pyrolysis Kinetics, Reaction Mechanisms, and By-Products of Rice Husk and Rice Straw via TG-FTIR and Py-GC/MS

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