Assessment of self-ignition risks of solid biofuels by thermal analysis

Torrent, Javier García; Fernandez-Añez, Nieves; Pejić, Ljiljana Medić; Mateos, Lucía Montenegro

doi:10.1016/j.fuel.2014.11.074

Cited by 50 publications

(26 citation statements)

References 21 publications

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“…These temperatures are essential to ensure the perfect design of the combustor and avoid unburned solid fuel at the outlet of the reactor [22]. It should be noted that T i is also used to compare the reactivity of several substances [19][20][21][22][23][42][43][44]. Several methods have been reported and used in the literature to determine T i and T f [32,[45][46][47][48].…”

Section: Ignition and Final Temperatures Of Combustion Reactionmentioning

confidence: 99%

“…This temperature is a very important criterion for evaluating the reactivity of substances [19][20][21][22][23][42][43][44]. Indeed, the lower the T max , the higher the reactivity of the substance.…”

Section: Maximum Temperaturementioning

confidence: 99%

“…The set of four points delimited in Figure 4b for each sample represents the evolution of the different parameters (T i , T f , T max , r max , and ∆t) with the heating rate (10,20,30, and 40 • C·min −1 ) (the evolution of the temperature T f with the heating rate is shown in Figure 4b, as an example).…”

Section: Principal Component Analysismentioning

confidence: 99%

“…Some authors reported that the first stage illustrated the combustion of the holocellulose component, while the second stage concerned the combustion of lignin according to mechanism 1 [20,34].…”

Section: Mechanismmentioning

confidence: 99%

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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: Ignition and Final Temperatures Of Combustion Reactionmentioning

confidence: 99%

Section: Maximum Temperaturementioning

confidence: 99%

Section: Principal Component Analysismentioning

confidence: 99%

Section: Mechanismmentioning

confidence: 99%

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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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“…In the case of the samples studied and due to their structural composition, two points of maximum mass loss, the resultant from the devolatilization of holocellulose (MLT_LV), and that corresponding to the devolatilization of lignin (MLT_HV) are obtained [80], as can be seen in Figure 15. As a general rule, when an oxygen stream is used instead of air stream, the reaction takes place quicker, and the sample has a peak mass-loss rate at a determined temperature called characteristic oxidation temperature (Tcharact), that is different for each sample ( Figure 16).…”

Section: Thermal Susceptibilitymentioning

confidence: 96%