Skip to Main content Skip to Navigation
Journal articles

Hydrothermal conversion of Lignin compounds. A detailled study of fragmentation and condensation reaction pathways

Abstract : The hydrothermal conversion takes advantage of the singular physico-properties of the hot and compressed water which can be considered as a green solvent. The hydrothermal conversions of an alkali lignin and of phenolic model compounds (vanillin, monobenzone, 2,2′-biphenol) have been studied at 370 and 390 °C, at 25 MPa between 5 and 40 min. Polydispersity of products in term of both chemical structures and molecular weights has been characterized through a new analytical approach combining chromatographic (GC) and spectrometric techniques (Fourier transform ion cyclotron mass spectrometry FT-ICR/MS, NMR). From our experiments, it is clear that lignin conversion occurs via a complex reaction pathway where competitive fragmentation and condensation reactions occur. An original reaction pathway has been suggested from the main emphasized reactions.
Document type :
Journal articles
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-00751718
Contributor : Stéphane Toulin Connect in order to contact the contributor
Submitted on : Wednesday, November 14, 2012 - 10:05:54 AM
Last modification on : Tuesday, December 7, 2021 - 1:16:03 PM

Identifiers

Collections

Citation

Jérémie Barbier, Nadège Charon, Nathalie Dupassieux, Anne Loppinet-Serani, Laure Mahé, et al.. Hydrothermal conversion of Lignin compounds. A detailled study of fragmentation and condensation reaction pathways. Biomass and Bioenergy, Elsevier, 2012, 46, pp.479-491. ⟨10.1016/j.biombioe.2012.07.011⟩. ⟨hal-00751718⟩

Share

Metrics

Les métriques sont temporairement indisponibles