Combined effect of pyrolysis pressure and temperature on the yield and CO2 gasification reactivity of acacia wood in macro-TG

Noumi Eric Serge, Blin Joël, Valette Jérémy, Rousset Patrick. 2015. Combined effect of pyrolysis pressure and temperature on the yield and CO2 gasification reactivity of acacia wood in macro-TG. Energy and Fuels, 29 (11) : 7301-7308.

https://doi.org/10.1021/acs.energyfuels.5b01454

Article de revue ; Article de recherche ; Article de revue à facteur d'impact

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

Résumé : This work examines the effect of both absolute pressure (range 1–6 bar) and peak temperature (range 350–800 °C) during pyrolysis of acacia wood in a macro-TG on the yield and CO2 gasification reactivity of the resulting charcoal. A central composite design was used for the experiments. The results of statistical analyses showed satisfactory agreement between the experimental results (charcoal yield and charcoal CO2 gasification reactivity) and model predictions. Both charcoal yield and reactivity decreased with an increase in temperature but increased with an increase in pressure. An increase in pyrolysis pressure increased charcoal yield and decreased reactivity. The temperature had a more significant effect on charcoal reactivity than pressure, and their interaction was not significant. The optimal conditions for the preparation of reductant charcoal were found to be a peak pyrolysis temperature of 617 °C and an absolute pressure of 6 bar.

Mots-clés Agrovoc : Acacia senegal, bois, pyrolyse, pression, température, productivité, carbone, oxyde de carbone, gazéification, charbon de bois

Mots-clés géographiques Agrovoc : Burkina Faso

Classification Agris : K50 - Technologie des produits forestiers
P06 - Sources d'énergie renouvelable

Champ stratégique Cirad : Axe 2 (2014-2018) - Valorisation de la biomasse

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