The origin of molecular mobility during biomass pyrolysis as revealed by in situ (1)H NMR spectroscopy.
Identifieur interne : 000060 ( PubMed/Checkpoint ); précédent : 000059; suivant : 000061The origin of molecular mobility during biomass pyrolysis as revealed by in situ (1)H NMR spectroscopy.
Auteurs : Anthony Dufour (génie des procédés) [France] ; Miguel Castro-Diaz ; Nicolas Brosse ; Mohamed Bouroukba ; Colin SnapeSource :
- ChemSusChem [ 1864-564X ] ; 2012.
Descripteurs français
- KwdFr :
- MESH :
- métabolisme : Biopolymères, Cellulose, Lignine, Minéraux, Xylanes.
- Biomasse, Biopolymères, Cellulose, Lignine, Minéraux, Poaceae, Protons, Spectroscopie par résonance magnétique, Température, Xylanes.
English descriptors
- KwdEn :
- Biomass, Biopolymers (chemistry), Biopolymers (metabolism), Cellulose (chemistry), Cellulose (metabolism), Lignin (chemistry), Lignin (metabolism), Magnetic Resonance Spectroscopy, Minerals (chemistry), Minerals (metabolism), Poaceae (chemistry), Protons, Temperature, Xylans (chemistry), Xylans (metabolism).
- MESH :
- chemical , chemistry : Biopolymers, Cellulose, Lignin, Minerals, Xylans.
- chemical , metabolism : Biopolymers, Cellulose, Lignin, Minerals, Xylans.
- chemistry : Poaceae.
- Biomass, Magnetic Resonance Spectroscopy, Protons, Temperature.
Abstract
The thermochemical conversion of lignocellulosic biomass feedstocks offers an important potential route for the production of biofuels and value-added green chemicals. Pyrolysis is the first phenomenon involved in all biomass thermochemical processes and it controls to a major extent the product composition. The composition of pyrolysis products can be affected markedly by the extent of softening that occurs. In spite of extensive work on biomass pyrolysis, the development of fluidity during the pyrolysis of biomass has not been quantified. This paper provides the first experimental investigation of proton mobility during biomass pyrolysis by in situ (1)H NMR spectroscopy. The origin of mobility is discussed for cellulose, lignin and xylan. The effect of minerals on cellulose mobility is also investigated. Interactions between polymers in the native biomass network are revealed by in situ (1)H NMR analysis.
DOI: 10.1002/cssc.201100442
PubMed: 22573541
Affiliations:
- France
- Grand Est, Lorraine (région)
- Nancy
- Centre national de la recherche scientifique, Laboratoire réactions et génie des procédés, Nancy-Université, Université de Lorraine
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Links to Exploration step
pubmed:22573541Le document en format XML
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<term>Cellulose (metabolism)</term>
<term>Lignin (chemistry)</term>
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<term>Magnetic Resonance Spectroscopy</term>
<term>Minerals (chemistry)</term>
<term>Minerals (metabolism)</term>
<term>Poaceae (chemistry)</term>
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<term>Xylans (chemistry)</term>
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<term>Lignine ()</term>
<term>Lignine (métabolisme)</term>
<term>Minéraux ()</term>
<term>Minéraux (métabolisme)</term>
<term>Poaceae ()</term>
<term>Protons</term>
<term>Spectroscopie par résonance magnétique</term>
<term>Température</term>
<term>Xylanes ()</term>
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<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Biopolymers</term>
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<term>Cellulose</term>
<term>Lignine</term>
<term>Minéraux</term>
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<term>Poaceae</term>
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<front><div type="abstract" xml:lang="en">The thermochemical conversion of lignocellulosic biomass feedstocks offers an important potential route for the production of biofuels and value-added green chemicals. Pyrolysis is the first phenomenon involved in all biomass thermochemical processes and it controls to a major extent the product composition. The composition of pyrolysis products can be affected markedly by the extent of softening that occurs. In spite of extensive work on biomass pyrolysis, the development of fluidity during the pyrolysis of biomass has not been quantified. This paper provides the first experimental investigation of proton mobility during biomass pyrolysis by in situ (1)H NMR spectroscopy. The origin of mobility is discussed for cellulose, lignin and xylan. The effect of minerals on cellulose mobility is also investigated. Interactions between polymers in the native biomass network are revealed by in situ (1)H NMR analysis.</div>
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