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Modification of mass transfer properties in poplar wood (P. robusta) by a thermal treatment at high temperature

Modifikation des Massentransports in Pappelholz durch Hitzebehandlung bei hoher Temperatur

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Abstract

This paper is devoted to the measurement and analysis of the mass transfer properties in the hygroscopic range of wood specimens of poplar (Populus robusta) before and after a treatment at 200°C. In this work, two different properties have been determined on the same samples: the mass diffusivity (property of mass migration under the effect of a concentration gradient) and the air permeability (property of mass migration under the effect of a pressure gradient). These properties are very important to evaluate the potential usage of thermally treated products in the packaging sector, because they define gas and water vapour transfer. The experimental data prove that the thermal treatment reduces the value of mass diffusivity probably due to the chemical modification of the cell wall. However, the permeability value does not change significantly, probably because the thermal treatment has a slight impact on the porous structure of wood.

Zusammenfassung

Diese Arbeit behandelt den Massentransport im hygroskopischen Bereich von Pappelholz vor und nach der Behandlung bei 200°C. Zwei Eigenschaften werden an den gleichen Proben bestimmt: zum einen die Diffusionseigenschaft (Massenfluss unter dem Einfluss eines Konzentrationsgradienten), zum andern die Gasdurchlässigkeit (Massenfluss unter dem Einfluss eines Druckgradienten). Diese beiden Eigenschaften sind wichtige Kenngrößen für die mögliche Verwendung der Produkte im Verpackungsbereich, da sie die Bewegung von Gas und Wasserdampf definieren. Die experimentellen Daten zeigen, dass die thermische Behandlung, wahrscheinlich aufgrund chemischer Veränderungen der Zellwand, den Massenfluss reduziert. Dagegen ändert sich die Gasdurchlässigkeit nicht signifikant, da die thermische Behandlung nur einen geringen Einfluss auf die Porenstruktur des Holzes ausübt.

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Notes

  1. CHA: from “chambre à air” (inner tube in French)

References

  • Agoua E, Zohoun S (2001) Utilisation d’une double enceinte pour déterminer le coefficient de diffusion d’eau liée dans le bois en régime transitoire: recours à la simulation numérique pour valider la méthode d’identification. Int J Heat Mass Transfer 44(19):3731–3744

    Article  CAS  Google Scholar 

  • ARMINES (1995) Le procédé de rétification. New Option Wood. France, FR 2751579

  • Bao F, Lu J (1999) On the permeability of main wood species in China. Holzforschung 53(4):350–354

    CAS  Google Scholar 

  • Bilbao R, Millera A (1989) Kinetics of weight loss by thermal decomposition of xylan and lignin. Influence of experimental conditions. Thermochim Acta 143:137–148

    Article  CAS  Google Scholar 

  • Bourgois J, Guyonnet R (1988) Characterization and analysis of torrefied wood. Wood Sci Technol 22:143–155

    CAS  Google Scholar 

  • Bourgois J, Bartholin MC, Guyonnet R (1989) Thermal treatment of wood: analysis of the obtained product. Wood Sci Technol 23(4):303–310

    CAS  Google Scholar 

  • BRE-CT-5006 EB (1998) Upgrading of non durable wood species by appropriate pyrolysis thermal treatment. EC-Industrial & Materials Technologies Programme (Brite-EuRam III):17

  • Burmester A (1973) Einfluß einer Wärme-Druck-Behandlung halbtrockenen Holzes auf seine Formbeständigkeit. Holz Roh- Werkstoff 31:237–243

    Google Scholar 

  • Buro A (1954) Die Wirkung von Hitzebehandlungen auf die Pilzresistenz von Kiefern- und Buchenholz. Holz Roh- Werkstoff 8:297–304

  • Comstock GL, Côté WA (1968) Factors affecting permeability and pit aspiration in coniferous sapwood. Wood Sci Technol 2:279–291

    CAS  Google Scholar 

  • Dullien FAL (1992) Porous media, fluid transport and pore structure, 2nd edn. Academic Press, New York

  • EP0018446 (1982) Verfahren zur Vergütung von Holz: 5

  • EP0612595 (1994) Process for upgrading low-quality wood: 6

  • EP0623433 (1994) Process for upgrading low-quality wood: 6

  • Hillis WE, Rozna AN (1984) High temperature and chemical effects on wood stability. Part 1: General considerations. Wood Sci Technol 18:281–293

    CAS  Google Scholar 

  • Hillis WE, Rozna AN (1985a) High temperature and chemical effects on wood stability. Part 2: The effect of heat on the softening of radiata pine. Wood Sci Technol 18:57–66

    Google Scholar 

  • Hillis WE, Rozna AN (1985b) High temperature and chemical effects on wood stability. Part 3: The effect of heat on the rigidity and the stability of radiata pine. Wood Sci Technol 19:93–102

    CAS  Google Scholar 

  • Kollmann F, Topf P (1971) Exothermic reactions of wood at elevated temperatures. J Fire Flammability 2:231–239

    CAS  Google Scholar 

  • Perré P (1987) Le sechage convectif de bois de résineux: choix, validation et utilisation d’un modèle. Paris, Université Paris VII: 245

  • Rapp AO (2001) Review on heat treatments of wood. COST Action E22—Environmental of wood protection, Antibes (France)

  • Rice RW, D’onofrio M (1996) Longitudinal gas permeability measurements from eastern white pine, red spruce, and balsam fir. Wood Sci Technol 28(3):301–308

    CAS  Google Scholar 

  • Ruyter HP (1989) PLATO-process. Netherland, No. 89-203170.9

  • Siau JF (1984) Transport processes in wood. Springer, Berlin Heidelberg New York

  • Skaar C (1988) Wood-water relations. Springer, Berlin Heidelberg New York

  • Stamm AJ (1946) Heat-stabilized wood. Ind Eng Chemistry 38(6):630–634

    CAS  Google Scholar 

  • Tjeerdsma BF, Boonstra M, Pizzi A, Tekely P, Militz H (1998) Characterisation of thermally modified wood: molecular reasons for wood performance improvement. Holz Roh- Werkstoff 56:149–153

    Google Scholar 

  • Ward JC (1986) The effect of wetwood on lumber drying times and rates: an explorantory evaluation with longitudinal gas permeability. Wood Fiber Sci 18(2):288–307

    Google Scholar 

  • Zohoun S (1998) Détermination de la diffusivité massique dans le domaine hygroscopique du bois: comparaison des mesures en régimes permanent et transitoire. Nancy, Institut National Polytechnique de Lorraine: 107

  • Zohoun S, Perré P (1997) Mesure en régime permanent de la diffusivité massique du bois dans le domaine hygroscopique: présentation du système “PVC-CHA”. Les cahiers scientifiques du bois-Instrumentation. ar.bo.lor. Nancy, ar.bo.lor. 1:212

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Acknowledgements

Funding for this study was provided by SIEL (Syndicat Interprofessionnel des Emballages Légers).

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Authors and Affiliations

  1. CIRAD-Forêt—Programme Bois, Laboratoire énergie—Environnement, 73, avenue JF Breton, 34398, Montpellier Cedex 5, France

    P. Rousset & P. Girard

  2. LERMAB, UMR 1093 INRA/ENGREF/Université Henri Poincaré Nancy I, ENGREF 14 rue Girardet, 54042, Nancy Cedex, France

    P. Perré

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  1. P. Rousset
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  2. P. Perré
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Correspondence to P. Perré.

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Rousset, P., Perré, P. & Girard, P. Modification of mass transfer properties in poplar wood (P. robusta) by a thermal treatment at high temperature. Holz Roh Werkst 62, 113–119 (2004). https://doi.org/10.1007/s00107-003-0459-5

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