title: The origin of molecular mobility during biomass pyrolysis as revealed by in situ (1)H NMR spectroscopy.
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.
authors.affiliation: Reactions and Processes Engineering Laboratory, CNRS, Nancy Université, ENSIC, 1 rue Grandville, B.P.20451, 54000 Nancy Cedex, France. anthony.dufour@ensic.inpl-nancy.fr
authors.forename: Anthony
authors.initials: A
authors.lastname: Dufour
authors.forename: Miguel
authors.initials: M
authors.lastname: Castro-Diaz
authors.forename: Nicolas
authors.initials: N
authors.lastname: Brosse
authors.forename: Mohamed
authors.initials: M
authors.lastname: Bouroukba
authors.forename: Colin
authors.initials: C
authors.lastname: Snape
mesh_terms: D018533:Biomass; D001704:Biopolymers / Q000737:chemistry* / Q000378:metabolism; D002482:Cellulose / Q000737:chemistry / Q000378:metabolism; D008031:Lignin / Q000737:chemistry / Q000378:metabolism; D009682:Magnetic Resonance Spectroscopy; D008903:Minerals / Q000737:chemistry / Q000378:metabolism; D006109:Poaceae / Q000737:chemistry; D011522:Protons; D013696:Temperature; D014990:Xylans / Q000737:chemistry / Q000378:metabolism
chemical_list: D001704:Biopolymers; D008903:Minerals; D011522:Protons; D014990:Xylans; D002482:Cellulose; D008031:Lignin