Pyrolysis of Pinus pinaster in a two-stage gasifier: Influence of processing parameters and thermal cracking of tar

Fassinou Wanignon Ferdinand, Van de Steene Laurent, Toure Siaka, Volle Ghislaine, Girard Philippe. 2009. Pyrolysis of Pinus pinaster in a two-stage gasifier: Influence of processing parameters and thermal cracking of tar. Fuel Processing Technology, 90 (1) : 75-90.

Quartile : Q1, Sujet : ENGINEERING, CHEMICAL / Quartile : Q1, Sujet : CHEMISTRY, APPLIED / Quartile : Q2, Sujet : ENERGY & FUELS

Résumé : A new two-stage gasifier with fixed-bed has recently been installed on CIRAD facilities in Montpellier. The pyrolysis and the gasifier units are removable. In order to characterise the pyrolysis products before their gasification, experiments were carried out, for the first time onlywith the pyrolysis unit and this paper deals with the results obtained. The biomass used is Pinus pinaster. The parameters investigated are: temperature, residence time and biomass flow rate. It has been found that increasing temperature and residence time improve the cracking of tars, gas production and char quality (fixed carbon rate more than 90%, volatile matter rate less than 4%). The increase of biomass flow rate leads to a bad char quality. The efficiency of tar cracking, the quality and the heating value of the charcoal and the gases, indicate that: temperature between 650 °C and 750 °C, residence time of 30 min, biomass flow rate between 10 and 15 kg/h should be the most convenient experimental conditions to get better results from the experimental device and from the biomass pyrolysis process. The kinetic study of charcoal generation shows that the pyrolysis process, in experimental conditions, is a first-order reaction. The kinetic parameters calculated are comparable with those found by other researchers.

Mots-clés Agrovoc : Pinus pinaster, gazéification, biomasse, énergie renouvelable, charbon de bois, gaz, pyrolyse, traitement thermique, bilan énergétique

Mots-clés complémentaires : Gaz de gazogène

Classification Agris : Q60 - Traitement des produits agricoles non alimentaires
P06 - Sources d'énergie renouvelable

Champ stratégique Cirad : Axe 2 (2005-2013) - Biomasse énergie et sociétés du sud

Auteurs et affiliations

• Fassinou Wanignon Ferdinand, Université de Cocody (CIV)
• Van de Steene Laurent, CIRAD-PERSYST-UPR Biomasse-énergie (FRA) ORCID: 0000-0003-4737-3667
• Toure Siaka, Université de Cocody (CIV)
• Volle Ghislaine, CIRAD-PERSYST-UPR Biomasse-énergie (FRA)
• Girard Philippe, CIRAD-PERSYST-UPR Biomasse-énergie (BFA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/547302/)

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