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Carbon footprint assessment of a paper book : can planned  integration of deinked market pulp be detrimental to climate?

Wells Jean-Robert, Boucher Jean-François, Laurent Achille-Benjamin et Villeneuve Claude. (2012). Carbon footprint assessment of a paper book : can planned  integration of deinked market pulp be detrimental to climate? Journal of Industrial Ecology, 16, (2), p. 212-222.

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This study presents the carbon footprint of a paperback book for which the cover and inside papers were produced in the United States and printed in Canada. The choice of paper mills for both cover and page papers was based on criteria such as percentage of recycled content in the pulp mix, transport distances (pulp mill to paper mill, paper mill to print), and technologies. The cradle-to-gate assessment of greenhouse gas (GHG) emissions follows recognized guidelines for carbon footprint assessment. The results show that the production of 400,000 books, mainly distributed in North America, would generate 1,084 tonnes carbon dioxide equivalent (CO2-eq), or 2.71 kilograms (kg) CO2-eq per book. The impact of using deinked market pulp (DMP) is shown here to be detrimental, accounting for 54% of total GHG emissions and being 32% higher than reference virgin Kraft pulp. This supports findings that DMP mill GHG emissions strongly correlate with the carbon intensity of the power grid supplying the pulp mill and that virgin Kraft mills that reuse wood residue and black liquor to produce heat and electricity can achieve lower GHG emissions per tonne of pulp produced. Although contrary to common thinking, this is consistent with the Paper Task Force 2002 conclusion for office paper (the closest paper grade to writing paper or fine paper) (EDF 2002a). To get a cradle-to-grave perspective, three different end-of-life (EOL) scenarios were analyzed, all of which included a harvested wood product (HWP) carbon storage benefit for 25 years. The GHG offset concept within the context of the book editor's “carbon-neutral” paper claims is also discussed.

Type de document:Article publié dans une revue avec comité d'évaluation
Pages:p. 212-222
Version évaluée par les pairs:Oui
Sujets:Sciences naturelles et génie > Sciences appliquées > Eau et environnement
Sciences naturelles et génie > Sciences appliquées > Foresterie et sciences du bois
Sciences naturelles et génie > Sciences naturelles > Biologie et autres sciences connexes
Département, module, service et unité de recherche:Départements et modules > Département des sciences fondamentales
Mots-clés:carbon dioxide emissions, co2, greenhouse gas emissions, ghg, harvested wood products, hwps, industrial ecology, power grid, wastepaper recycling
Déposé le:20 janv. 2016 03:01
Dernière modification:05 déc. 2016 21:02
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