Thick wood particle pyrolysis in an oxidative atmosphere

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 sample...

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Bibliographic Details
Published in:Chemical engineering science 2015, Vol.126, p.608-615
Main Authors: Daouk, Elias, Van de Steene, Laurent, Paviet, Frederic, Salvador, Sylvain
Format: Article
Language:English
Subjects:
Chemical and Process Engineering
Chemical engineering
Chemical Sciences
Engineering Sciences
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Summary: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.
ISSN:0009-2509
DOI:10.1016/j.ces.2015.01.017