Correspondence Between Structure and Reactivity During Hydrothermal Conversion of Lignocellulosic Macromolecules
| Autor: | Laure Mahé, Jérémie Barbier, Nathalie Dupassieux, A. Le Masle, Anne Loppinet-Serani, Jérémie Ponthus, François Cansell, N. Charon, Marion Courtiade, Annie Ducrozet, Anne-Agathe Quoineaud |
|---|---|
| Přispěvatelé: | IFP Energies nouvelles (IFPEN), Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université de Bordeaux (UB) |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
General Chemical Engineering
Chemical structure Energy Engineering and Power Technology Biomass Lignocellulosic biomass 02 engineering and technology 010402 general chemistry 01 natural sciences 7. Clean energy Hydrothermal circulation chemistry.chemical_compound Lignin Organic chemistry Reactivity (chemistry) [PHYS]Physics [physics] Hydrothermal conversion Condensation food and beverages 021001 nanoscience & nanotechnology Condensation reaction 0104 chemical sciences Fuel Technology chemistry Macromolecules 0210 nano-technology |
| Zdroj: | Oil & Gas Science and Technology-Revue d'IFP Energies nouvelles Oil & Gas Science and Technology-Revue d'IFP Energies nouvelles, Institut Français du Pétrole, 2013, 68 (4), pp.741-752. ⟨10.2516/ogst/2012096⟩ |
| ISSN: | 1294-4475 1953-8189 |
| DOI: | 10.2516/ogst/2012096⟩ |
| Popis: | International audience; 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. |
| Databáze: | OpenAIRE |
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