Comparative investigation for the determination of kinetic parameters for biomass pyrolysis by thermogravimetric analysis

Abdelouahed, Lokmane; Leveneur, Sébastien; Vernières‐Hassimi, Lamiae; Balland, Laurent; Taouk, Bechara

doi:10.1007/s10973-017-6212-9

Cited by 85 publications

(31 citation statements)

References 37 publications

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“…The deviation was more pronounced at high temperatures, probably due to the very low mass in the crucible. Humidity evaporation was observed between ambient temperature and 150 • C, as already mentioned in previous works [19,31].…”

Section: Thermogravimetric and Differential Thermogravimetic (Dtg) Chsupporting

confidence: 81%

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Combustion of Flax Shives, Beech Wood, Pure Woody Pseudo-Components and Their Chars: A Thermal and Kinetic Study

et al. 2018

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Thermogravimetric analysis was employed to investigate the combustion characteristics of flax shives, beech wood, hemicellulose, cellulose, lignin, and their chars. The chars were prepared from raw materials in a fixed-bed reactor at 850 • C. In this study, the thermal behavior based on characteristic temperatures (ignition, maximum, and final temperatures), burnout time and maximum rate was investigated. The kinetic parameters for the combustion of different materials were determined based on the Coats-Redfern approach. The results of our study revealed that the combustion of pure pseudo-components behaved differently from that of biomass. Indeed, principal component analysis showed that the thermal behavior of both biomasses was generally similar to that of pure hemicellulose. However, pure cellulose and lignin showed different behaviors compared to flax shives, beech wood, and hemicellulose. Hemicellulose and cellulose chars had almost the same behaviors, while being different from biomass and lignin chars. Despite the difference between flax shives and beech wood, they showed almost the same thermal characteristics and apparent activation energies. Also, the combustion of the hemicellulose and cellulose chars showed that they have almost the same structure. Their overall thermal and kinetic behavior remained between that of biomass and lignin.

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Section: Thermogravimetric and Differential Thermogravimetic (Dtg) Chsupporting

confidence: 81%

“…The kinetic parameters determined by thermogravimetric measurements are very sensitive to the calculation methods used [19,31]. Therefore, their determination in this study was carried out using the Coats-Redfern method by taking into consideration two different models proposed in the literature [32,33].…”

Section: Kinetic Modellingmentioning

confidence: 99%

Combustion of Flax Shives, Beech Wood, Pure Woody Pseudo-Components and Their Chars: A Thermal and Kinetic Study

et al. 2018

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“…They estimated the average E a for cellulose, hemicellulose, and lignin to be 141, 126, and 167 kJ/mol, respectively. According to their study, the E a required was the highest for lignin, which was in contradiction to the study conducted by Huang et al There are other studies available in the literature regarding the estimation of E a for different kinds of biomass using the model‐free method …”

Section: Introductionmentioning

confidence: 60%

Predicting the biomass conversion performance in a fluidized bed reactor using isoconversional model‐free method

et al. 2019

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The first objective of this study to analyze the detailed pyrolysis kinetics of four Canadian feedstocks through two techniques: thermogravimetric analysis (TGA) using the isoconversional model-free method; and fast pyrolysis in a fluidized bed reactor using the simple Arrhenius model. The four biomass feedstocks were pyrolyzed in a fluidized bed reactor at 400-520 8C. The experiments were conducted for three size fractions. The thermogravimetric analysis was performed at four heating rates (2, 5, 10, and 15 8C/min) in an inert atmosphere. TGA experiments showed that the decomposition rate of agricultural residues was significantly lower than woody biomass due to high volatiles and low ash content in the latter. The range of average activation energy from fluidized bed experiments was 150-168 kJ/mol and 160-180 kJ/mol from TGA experiments. The difference is attributed to different methodology in the experiments and the determination of kinetic parameters. The second objective was to apply the global kinetic parameters from the TGA to predict the decomposition of biomass to biochar and to compare it with the experimental biochar left in the fluidized bed reactor at different temperatures. This study also confirmed that at high temperatures for all the feedstocks, average kinetics parameters obtained from the TGA could produce fluidized bed biomass conversion results with an average variation of 4 %.

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“…Where N k represents the number of points for the curve evaluated and Np is the number of parameters of the model (Abdelouahed, Leveneur, Vernieres-Hassimi, Balland, & Taouk, 2017).…”

Section: Resultsmentioning

confidence: 99%

Devolatilization of African Palm (Elaeis guineensis) Husk studied by TG-MS

Albis¹,

Ortiz²,

Piñeres³

et al. 2018

Ing. Inv.

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Using simultaneous thermogravimetrical analysis coupled with mass spectroscopy, the pyrolysis of African palm husk, using several heat rates and programs was performed. Seven relations of mass/charge were followed of the evolved gas of the pyrolysis process, fitting the kinetics and the mass spectroscopy signals to the distributed activation energy model (DAEM) with different numbers of pseudo-components. Fitting with four pseudo-components proved to be the best for modeling the thermal degradation process. Kinetic parameters were not affected by the heating rate or program employed, which agrees with other reports for similar biomass. Methane, methanol formaldehyde, furfural were successfully fitted to the DAEM model, nevertheless CO 2 and NO 2 were not able to be represented by this model due to its production in secondary reactions in gaseous phase.Keywords: TG-MS, pyrolysis, African Palm, husk. RESUMENSe estudió la pirólisis del cuesco de palma africana utilizando diferentes programas de calentamiento, recurriendo al uso de la técnica simultánea de análisis termogravimétrico acoplado a espectrometría de masas. En los gases de evolución, se siguieron las intensidades de señal de espectrometría de masas de siete relaciones m/z. La cinética de pirólisis de este residuo del procesamiento de aceite de palma se ajustó al modelo de distribución de energías de activación con diferentes números de pseudo-componentes. Los resultados del ajuste mostraron que son necesarios al menos cuatro pseudo-componentes para modelar satisfactoriamente los perfiles termogravimétricos de la pirólisis del cuesco de palma. Se encontró que la velocidad de calentamiento no afecta significativamente los parámetros del modelo cinético, los cuales se encuentran en concordancia con los reportados en la literatura para biomasas similares. Los perfiles de las curvas de intensidad de señal para las relaciones m/z seleccionadas se modelaron utilizando los parámetros cinéticos obtenidos del ajuste de los datos termogravimétricos, lográndose resultados satisfactorios para las relaciones m/z correspondientes a fragmentos de moléculas como metano, metanol, formaldehído y furfural. La falta de ajuste de las intensidades de señal correspondientes a CO 2 y NO 2 se atribuyó a que la formación de estos compuestos es consecuencia no sólo de la descomposición de la biomasa, sino también a su aparición resultado de reacciones secundarias en fase gaseosa.Palabras clave: TG-MS, pirólisis, palma africana, cuesco.

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Comparative investigation for the determination of kinetic parameters for biomass pyrolysis by thermogravimetric analysis

Cited by 85 publications

References 37 publications

Combustion of Flax Shives, Beech Wood, Pure Woody Pseudo-Components and Their Chars: A Thermal and Kinetic Study

Combustion of Flax Shives, Beech Wood, Pure Woody Pseudo-Components and Their Chars: A Thermal and Kinetic Study

Predicting the biomass conversion performance in a fluidized bed reactor using isoconversional model‐free method

Devolatilization of African Palm (Elaeis guineensis) Husk studied by TG-MS

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