Evaluation of the Physical, Chemical and Thermal Properties of Portuguese Maritime Pine Biomass

A characterisation of Pinus pinaster Aiton. (Maritime Pine) woody biomass and ashes is presented in this study. Physical, thermal and chemical analysis, including density, moisture content, calorific value, proximate and ultimate analysis, were carried out. The fuel Energy Density (Ed) and the Fuelw...

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Bibliographic Details
Published in:Sustainability 2018-08, Vol.10 (8), p.2877
Main Authors: Filipe dos Santos Viana, Helder, Martins Rodrigues, Abel, Godina, Radu, Carlos de Oliveira Matias, João, Jorge Ribeiro Nunes, Leonel
Format: Article
Language:English
Subjects:
Ashes
Biomass
Calorific value
Chemical analysis
Chemical composition
Fertilizers
Flux density
Legislation
Moisture content
Organic chemistry
Pine
Pine needles
Pine trees
Pinus pinaster
Sulfur
Sustainability
Thermal properties
Trees
Water content
Wood
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Summary:A characterisation of Pinus pinaster Aiton. (Maritime Pine) woody biomass and ashes is presented in this study. Physical, thermal and chemical analysis, including density, moisture content, calorific value, proximate and ultimate analysis, were carried out. The fuel Energy Density (Ed) and the Fuelwood Value Index (FVI) were assessed by ranking the fuelwood quality. Furthermore, the determination of the ash metal elementals was performed. The results from this study indicated, for Pinus pinaster biomass tree components, carbon content ranging from 46.5 to 49.3%, nitrogen content from 0.13 to 1.18%, sulphur content from 0.056 to 0.148% and hydrogen content around 6–7%. The ash content in the tree components ranged from 0.22 to 1.92%. The average higher heating value (HHV) was higher for pine needles (21.61 MJ·kg−1). The Ed of 8.9 GJ·m−3 confirm the good potential of Pinus pinaster biomass tree components as fuel. The FVI ranked the wood stem (4658) and top (2861.8) as a better fuelwood and pine needles (394.2) as inferior quality. The chemical composition of the ashes revealed that the elemental contents are below the national and most European countries legislation guidelines for the employment of ash as a fertiliser.
ISSN:2071-1050
2071-1050
DOI:10.3390/su10082877