Correspondence between structure and reactivity during hydrothermal conversion of lignocellulosic macromolecules.

Abstract : In this study, reaction pathway of a woody biomass under hydrothermal conditions is investigated in order to further understand reactions that occur during the thermochemical liquefaction of a lignocellulosic biomass. A multitechnique analytical approach combining chromatographic and spectroscopic techniques has been developed in order to characterize both chemical structure and molecular weight of the products. From our experiments, we can assume that the holocellulosic and the ligneous fractions of biomass have different reactivity under hydrothermal condition. Although hydrothermal conversion of holocellulose and lignin occur both according to a complex pathway composed of competitive fragmentation and condensation reactions, holocellulose reacts first by total fragmentation to low molecular weight compounds followed by the condensation of the fragment to heavy molecular weight compounds, whereas lignin reacts essentially by partial depolymerisation. Since compounds produced from both the holocellulosic and the ligneous fraction are together in the reaction medium then they condense each other during the conversion of lignocellulosic material.
Type de document :
Article dans une revue
Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles, Institut Français du Pétrole, 2013, 68 (4), pp.741-752
Liste complète des métadonnées

Littérature citée [29 références]  Voir  Masquer  Télécharger

https://hal-ifp.archives-ouvertes.fr/hal-00909024
Contributeur : Françoise Bertrand <>
Soumis le : lundi 25 novembre 2013 - 16:23:52
Dernière modification le : jeudi 11 janvier 2018 - 06:15:06
Document(s) archivé(s) le : lundi 3 mars 2014 - 15:51:07

Fichier

A9R5DAD.pdf
Fichiers éditeurs autorisés sur une archive ouverte

Identifiants

  • HAL Id : hal-00909024, version 1

Collections

Citation

Jérémie Barbier, Nadège Charon, Nathalie Dupassieux, Anne Loppinet-Serani, Laure Mahé, et al.. Correspondence between structure and reactivity during hydrothermal conversion of lignocellulosic macromolecules.. Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles, Institut Français du Pétrole, 2013, 68 (4), pp.741-752. 〈hal-00909024〉

Partager

Métriques

Consultations de la notice

359

Téléchargements de fichiers

176