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Thick wood particle pyrolysis in an oxidative atmosphere

Abstract : Oxidative pyrolysis of pine wood particles was analysed thermo-gravimetrically. The effects of the concentration of oxygen in the surrounding gas and of particle size were investigated. Three different oxygen concentrations (0%, 10% and 20% v/v) and three different sized cylindrical pine wood samples (4 mm, 8 mm and 12 mm in diameter and 15 mm long) were tested. Two types of Macro-TG apparatuses were used; the first was non isothermal and was used at a heating rate of 20 degrees C/min, and the second was isothermal used at two temperatures, 400 degrees C and 600 degrees C. In the low heating rate non isothermal apparatus, results showed that oxygen had a strong influence on pyrolysis behaviour, but particle size did not. In the high heating rate isothermal apparatus, particle size had a significant influence on conversion: transfer phenomena limit oxidative pyrolysis.
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Elias Daouk, Laurent Steene, Frederic Paviet, Sylvain Salvador. Thick wood particle pyrolysis in an oxidative atmosphere. Chemical Engineering Science, Elsevier, 2015, 126, pp.608-615. ⟨10.1016/j.ces.2015.01.017⟩. ⟨hal-01201684⟩



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