Investigation of combustion kinetics of treated and untreated waste wood samples with thermogravimetric analysis

Yorulmaz, Sema Yurdakul; Atimtay, Aysel T.

doi:10.1016/j.fuproc.2009.02.010

Cited by 231 publications

(119 citation statements)

References 29 publications

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“…In this model, the kinetics of the combustion reaction were fully controlled by the diffusion of oxygen inside the hemicellulose particles. The diffusion limitation has already been observed in the combustion of the pine samples as reported by [52].…”

Section: Kinetic Parameterssupporting

confidence: 61%

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: Kinetic Parameterssupporting

confidence: 61%

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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“…The Arrhenius equation was used to calculate the kinetic parameters of the combustion process of the samples [3,6,[30][31][32]. The rate of the reactions can be described as:…”

Section: Theory Of Kinetics Analysismentioning

confidence: 99%

Thermal behaviour of low-rank Indian coal fines agglomerated with an organic binder

Das

Baruah

Saikia

2016

J Therm Anal Calorim

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The combustion kinetic parameters of the carbonized agglomerated coal fines (ACFs) were determined by thermogravimetric analysis under oxy-non-isothermal conditions for planning, designing, and operating the related combustion systems at an industrial scale. Friedman and Flynn-Wall-Ozawa methods were applied to determine the activation energies (E) and pre-exponential factors (A) of the thermal decomposition of ACFs. The multivariate nonlinear regression analyses were performed to find out the formal mechanisms, kinetic model, and the corresponding kinetic triplets. The results revealed the n-dim. Avrami-Erofeev (An) and nth-order (Fn) mechanism responsible for the decomposition of the carbonized ACFs. The activation energy of the combustion of carbonized ACFs is found to be in the range of 132.75-191.57 kJ mol -1 .

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“…Therefore, the analysis of the thermal degradation of plant fuels is decisive for wildland fire modelling and fuel hazard studies [4][5][6][7][8][9][10]. Numerous studies led to different degradation schemes in inert [11][12][13] environment but only a few were monitored in air atmosphere [14][15][16]. We propose here to study the thermal degradation of a forest fuel under air with thermogravimetry and kinetics analysis on the data.…”

Section: Introductionmentioning

confidence: 99%

Kinetic study of forest fuels by TGA: Model-free kinetic approach for the prediction of phenomena

et al. 2010

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a b s t r a c tThe kinetics of thermal decomposition of a forest fuel was studied by thermogravimetry. Experiments were monitored under air and non-isothermal conditions from 400 to 900 K. We used a classical modelfree method, the Kissinger-Akahira-Sunose (KAS) method to calculate the activation energy vs. the conversion degree of the reaction on the whole temperature domain. Analyses were performed at 10, 20 and 30 K/min. As expected, the complex structure of lignocellulosic fuels involved several steps with different energies in the degradation processes. The algorithm developed here, allows the calculation and the simulation of the solid temperature at different conversion degree for various heating rates. The good correlation between experiments and simulations validated the proposed algorithm. Then, kinetics parameters were used to perform simulations up to heating rates outside the functioning range of the thermal analyser.

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Investigation of combustion kinetics of treated and untreated waste wood samples with thermogravimetric analysis

Cited by 231 publications

References 29 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

Thermal behaviour of low-rank Indian coal fines agglomerated with an organic binder

Kinetic study of forest fuels by TGA: Model-free kinetic approach for the prediction of phenomena

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