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Título

Coupled drying and devolatilisation of non-spherical wet pine wook particles in fluidised beds

AutorDiego Poza, Luis F. de CSIC ORCID ; García Labiano, Francisco CSIC ORCID ; Abad Secades, Alberto CSIC ORCID ; Gayán Sanz, Pilar CSIC ORCID ; Adánez Elorza, Juan CSIC ORCID
Palabras claveDevolatilisation
Biomass
Fluidised beds
Fecha de publicación20-dic-2001
EditorElsevier
CitaciónJournal of Analytical and Applied Pyrolysis 65: 173-184 (2002)
ResumenRelease of volatiles of non-spherical pine wood particles was analysed by means of continuous measurements of the CO2 and O2 concentrations obtained after the complete combustion of the volatiles and from flame extinction times. The effect of the atmosphere used for devolatilisation was tested. The volatiles evolution was nearly identical using air or N2 as fluidising gas. The devolatilisation times increased with increasing the equivalent particle diameter, but there was an important scattering in the results. The data dispersion greatly decreased when the shape factor of the wood particles was considered. The devolatilisation times were fitted to a power-law relation replacing the particle diameter by the equivalent particle diameter multiplied by the shape factor. The effect of the moisture content was studied by analysis of the devolatilisation process of pine wood particles of the same size and different moisture contents (0-50%). As the moisture content of the wood particles increased the devolatilisation rate of combustible volatiles decreased and was more uniform along the devolatilisation time.
Descripción10 Figures, 2 Tables
Versión del editorhttp://dx.doi.org/10.1016/S0165-2370(01)00192-9
URIhttp://hdl.handle.net/10261/77971
ISSN0165-2370
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