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EXPERIMENTAL AND KINETIC STUDY OF SYNGAS PRODUCED BY PYROLYSIS

DOI: 10.1615/ICHMT.2014.IntSympConvHeatMassTransf.1110
pages 1475-1488

Naim Akkouche
Laboratoire d'Energétique, Mécanique et Ingénieries Université M'Hamed Bougara Boumerdes-Algérie

Mourad Balistrou
Laboratoire d'Energétique, Mécanique et Ingénieries Université M'Hamed Bougara Boumerdes-Algérie

Mohand Tazerout
Department of Energetics and Environmental Engineering, Ecole des Mines de Nantes, La Chantrerie 4 rue Alfred Kastler BP 20722 44307 Nantes cedex, France

Аннотация

This study brings together the one hand the production of biogas (syngas) and secondly to optimize its quality energetic. The study was carried out while heating a wood species (oak) in an inert atmosphere (pyrolysis). The pyrolysis at low temperature was chosen to maximize the amount of biogas while the heating rate was chosen to optimize his quality.
Pyrolysis of oak was carried out in a reactor under a nitrogen atmosphere between room temperature and 400 ° C, with different heating rates. The rate of rise in temperature affects the quantity and quality of the pyrolysis products. The main products obtained are three: pyrolysis oil (tar), char (charcoal) and syngas (non condensable gas).
The chemical composition of the syngas produced is identified by chromatographic analysis. Indeed, in terms of volume, the syngas produced is consists mainly CO and CO2, its energy is mainly represented by the CO and CH4.
The evolution of the production of the tars was conducted in part by sampling syngas and secondly by the thermogravimetric analysis where the weight degradation in the pyrolysis reactor was considered. The goals of this work are to determine kinetic parameters during pyrolysis decomposition of wood chips by an isoconversional method. It also relates the kinetic of the main components of syngas, which are CO, CO2 and CH4.

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