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Forests 2017, 8(9), 352; doi:10.3390/f8090352

Environmental Performance of Eastern Canadian Wood Pellets as Measured Through Life Cycle Assessment

1
NSERC Industrial Research Chair on Ecoresponsible Wood Construction, Département des Sciences du Bois et de la Forêt, Université Laval, 2425 Rue de la Terrasse, Pavillon Abitibi-Price, Québec, QC G1V 0A6, Canada
2
Natural Resources Canada, Canadian Forest Service, 1055 du P.E.P.S., P.O. Box 10380, Stn. Sainte-Foy, Québec, QC G1V 4C7, Canada
3
Renewable Materials Research Center, Département des Sciences du Bois et de la Forêt, Université Laval, 2405 rue de la Terrasse, Pavillon Abitibi-Price, Université Laval, Québec, QC G1V 0A6, Canada
*
Author to whom correspondence should be addressed.
Received: 20 July 2017 / Revised: 7 September 2017 / Accepted: 14 September 2017 / Published: 19 September 2017
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Abstract

Global demand for renewable energy has increased drastically over the last decade due to new climate change policies implemented in many jurisdictions. Wood pellets made from primary wood processing mill residues represent an attractive source of renewable energy that can be used in the environmental global challenge. However, the environmental impacts involved in their manufacture must be considered to measure the real benefits they can provide to the atmosphere. The general aim of this study was to evaluate the environmental impacts of wood pellet production at two Quebec plants using the Life Cycle Assessment (LCA) methodology and considering a gate-to-gate approach. The paper focuses on the different stages involved in wood pellet production; from the recovery of mill residues, through the pelletization process, to pellet bagging. The paper further expands to a cradle-to-grave analysis comparing the environmental footprints of producing and combusting 1 GJ of energy from wood pellets, natural gas and fossil fuel oil. The analysis suggested that the drying and the pelletizing stages were the largest negative factors affecting the environmental performance of wood pellet production. The comparison demonstrated the environmental advantage of using renewable rather than fossil sources of energy. Considering the growing interest in renewable energy, biomass in particular, and the lack of environmental information on wood pellets, this study could be useful not only for forest sector-related industries but also for the energy sector and policymakers. View Full-Text
Keywords: life cycle assessment; wood pellets; renewable energy; biomass life cycle assessment; wood pellets; renewable energy; biomass
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MDPI and ACS Style

Padilla-Rivera, A.; Barrette, J.; Blanchet, P.; Thiffault, E. Environmental Performance of Eastern Canadian Wood Pellets as Measured Through Life Cycle Assessment. Forests 2017, 8, 352.

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