| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Blin, Joël
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2023Synthesis of potassium polyferrite KxFeyOz heterogeneous catalyst for sunflower oil ethanolic transesterificationcitations
- 2015Improving the kinetics of the CO2 gasification of char through the catalyst/biomass integration conceptcitations
- 2015The catalyst/biomass integration concept for the direct thermo-catalytic conversion of biomass into either syngas or added-value molecules
- 2014Optimization of pyrolysis conditions for production of reductant charcoal
- 2014Optimization of quality of charcoal for steelmaking using statistical analysis approach
- 2012Improvement of charcoal yield by two-step pyrolysis on eucalyptus wood : A thermogravimetric studycitations
- 2005Nanoscaled Sn and Pb particles aligned in Al2O3 tubes obtained from molecular precursorscitations
- 2003The metastable, glasslike solid-state phase of HAlO and its transformation to Al/Al2O3 using a CO2 lasercitations
Places of action
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article
Improvement of charcoal yield by two-step pyrolysis on eucalyptus wood : A thermogravimetric study
Abstract
In previous work, we showed that two-step biomass pyrolysis, consisting of a first low temperature step (T = 360 _C, so a low actual heating rate) until the mass loss of the solid reached approximately 50%, followed rapidly by a high temperature step (T > 600 _C, so a high actual heating rate) led to optimize charcoal yields with values of up to 40%. In this paper, we describe thermogravimetric analysis studies on eucalyptus wood and its three constituents, i.e. cellulose, xylan and lignin, in order to explain the phenomena behind these results. Two-step pyrolysis experiments were conducted in a TGA oven up to 900 _C with a first slow pyrolysis step at a low heating rate of 2 _Cmin_1, followed by a fast pyrolysis step with a heating rate of 100 _C min_1. Char yields from eucalyptus wood were increased from 18.8%, for the simple 2 _C min_1 pyrolysis, up to 22.8% when the heating rate change was operated at a temperature of 360 _C. Char yield from cellulose was also increased, though only very slightly, when the heating rate was changed in the 330-360 _C temperature range. Conversely, char yield obtained from xylan and lignin in two-step pyrolysis was always lower than that obtained by simple 2 _C min_1 pyrolysis. It appeared from this work that two-step pyrolysis of the eucalyptus sample could not be regarded and described as the result of the sum of the pyrolysis of its constituents. There was a matrix effect with interactions that promoted char formation during two-step pyrolysis. (Résumé d'auteur)