Kinetic study of heating pinewood sawdust with different methods using thermogravimetric analysis

Márquez‐Montesino, Francisco; Trejo, Fernando; Rutiaga-Quiñones, José Guadalupe; Correa-Méndez, Fermín

doi:10.1007/s11144-021-01954-5

Cited by 1 publication

(3 citation statements)

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“…The knowledge of the kinetic profile and thermodynamic parameters of lignocellulosic material is used for the design of pyrolysis equipment and optimization of processing lines. The commonly studied kinetic parameters are activation energy ( E A ), pre‐exponential factor ( A ), and reaction order ( n ) 26 . These parameters can be evaluated on a laboratory scale using a thermogravimetric analyzer (TGA) 20,26 .…”

Section: Introductionmentioning

confidence: 99%

“…The commonly studied kinetic parameters are activation energy (E A ), preexponential factor (A), and reaction order (n). 26 These parameters can be evaluated on a laboratory scale using a thermogravimetric analyzer (TGA). 20,26 The commonly studied thermodynamic parameters are variations of enthalpy (ΔH), entropy (ΔS), and Gibbs free energy (ΔG).…”

mentioning

confidence: 99%

“…26 These parameters can be evaluated on a laboratory scale using a thermogravimetric analyzer (TGA). 20,26 The commonly studied thermodynamic parameters are variations of enthalpy (ΔH), entropy (ΔS), and Gibbs free energy (ΔG).…”

mentioning

confidence: 99%

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Kinetic and thermodynamic study of pyrolysis of the hydrolyzed residue of rice straw and husk by subcritical water process using thermogravimetric analysis

Ten Caten,

Draszewski,

Brondani

et al. 2023

Env Prog and Sustain Energy

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The use of hydrolyzed rice straw (HRS) and hydrolyzed rice husk (HRH) as feedstock for pyrolysis was evaluated through kinetic and thermodynamic studies. HRS and HRH were obtained from subcritical water hydrolysis (SWH) at different temperatures (180, 220, and 260°C). The Coats‐Redfern method was used to analyze the thermal behavior through thermogravimetry (TG) and derivative thermogravimetry (DTG) curves. TG profiles showed higher decomposition in the range of 250–400°C, especially for rice straw (RS) and HRS (80 wt %). The pyrolysis curves were well predicted by a first‐order reaction model. The kinetic analysis showed a variation in activation energy (EA) between 24.3 to 41.3 kJ mol−1 and 40.4 to 54.7 kJ mol−1 for RS/HRS and rice husk (RH)/HRH, respectively. The enthalpy (ΔH), Gibbs free energy (ΔG), and entropy (ΔS) varied from 25.9 to 39.6 kJ mol−1, 35.4 to 69.6 kJ mol−1, and −64.1 to −6.7 J mol−1 K−1, respectively, for RS/HRS, and 35 to 49.8 kJ mol−1, 43.2 to 79.3 kJ mol−1, and −53.5 to −10.2 J mol−1 K−1, respectively, for RH/HRH. These results showed that the pyrolysis reactivity using HRS is higher than HRH, which indicates the pyrolysis of HRS is more advantageous than HRH.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%