Thermal modification kinetics and chemistry of poplar wood in dry and saturated steam media
Article dans une revue avec comité de lecture
Résumé
This research work presents a modelling strategy to analyse thermal conversion rates of two thermal wood modification processes based on time-temperature superposition method. It gathers in a single study different original and bibliographic experimental works analysing the dry mass variation that occurs during thermal and hydro-thermal wood modification processes. The mass loss kinetic was successfully modelled using a modified Arrhenius approach. The time-temperature superposition method allowed to define for each wood modification process a master curve and its time shift depending on the treatment temperature. The analysis of ventilated oven and saturated steam treatments pointed out the existence of a continuous single kinetic for the ventilated oven which became more complex for saturated steam since a second kinetic stage appeared. This kinetic difference was sustained by infrared spectra chemical analysis which showed that hemicelluloses degraded much faster in presence of steam while lignin degradation occurred in both conditions.
Fichier(s) constituant cette publication
- Nom:
- LABOMAP_HOLZFORSCHUNG_2021_MAR ...
- Taille:
- 2.765Mo
- Format:
- Fin d'embargo:
- 2021-07-10
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Documents liés
Visualiser des documents liés par titre, auteur, créateur et sujet.
-
Article dans une revue avec comité de lectureMAZZANTI, Paola; MARCON, Bertrand; COCCHI, Linda; GOLI, Giacomo; RIPARBELLI, Lorenzo; UZIELLI, Luca (MDPI AG, 2024-08-07)This paper describes an innovative method developed by the authors to support basic decisions concerning the structural restoration of a large historical panel painting which had been damaged by inappropriate attachment ...
-
Article dans une revue avec comité de lectureMARCON, Bertrand; GOLI, Giacomo; FIORAVANTI, Marco (Springer, 2020)This research work investigates the possibility to use a hygroscopic model based on Fick’s law to predict the global moisture content variations an historical violin undergoes during a concert. To set up the model to work ...
-
Article dans une revue avec comité de lectureGOLI, Giacomo; CURTI, Rémi; MARCON, Bertrand; SCIPPA, Antonio; CAMPATELLI, Gianni; FURFERI, Rocco; DENAUD, Louis (MDPI, 2018)The set-up of machining parameters for non-ferric materials such as wood and wood-based materials is not yet defined on a scientific basis. In this paper, a new rapid experimental method to assess the specific cutting ...
-
Article dans une revue avec comité de lectureMARCON, Bertrand; GOLI, Giacomo; MATSUO-UEDA, MIYUKI; UMEMURA, Kenji; GRIL, Joseph; KAWAI, Shuichi; DENAUD, Louis (SISEF (Italian Society of Silviculture and Forest Ecology), 2018)The kinetics of several poplar (Populus alba L.) wood properties during thermal modification conducted in conventional oven with air recirculation were analysed and modelled in this paper. A wide range of properties was ...
-
Communication avec acteThe aim of the present work is to investigate the specific cutting coefficients for the assessment of cutting forces when peripheral milling different types of engineered wood products (EWPs). The approach comes from ...