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Tytuł:
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In situ measurements of viscoelastic properties of biomass during hydrothermal treatment to assess the kinetics of chemical alterations.
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Autorzy:
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Lancha JP; Université Paris-Saclay, CentraleSupélec, Laboratoire de Génie des Procédés et Matériaux, SFR Condorcet FR CNRS 3417, Centre Européen de Biotechnologie et de Bioéconomie (CEBB), 51110 Pomacle, France. Electronic address: .
Colin J; Université Paris-Saclay, CentraleSupélec, Laboratoire de Génie des Procédés et Matériaux, SFR Condorcet FR CNRS 3417, Centre Européen de Biotechnologie et de Bioéconomie (CEBB), 51110 Pomacle, France; Université Paris-Saclay, CentraleSupélec, Laboratoire de Génie des Procédés et Matériaux, 8-10 rue Joliot-Curie, 91190 Gif-sur-Yvette, France.
Almeida G; Université Paris-Saclay, INRAE, AgroParisTech, UMR SayFood, 91300 Massy, France.
Perré P; Université Paris-Saclay, CentraleSupélec, Laboratoire de Génie des Procédés et Matériaux, SFR Condorcet FR CNRS 3417, Centre Européen de Biotechnologie et de Bioéconomie (CEBB), 51110 Pomacle, France; Université Paris-Saclay, CentraleSupélec, Laboratoire de Génie des Procédés et Matériaux, 8-10 rue Joliot-Curie, 91190 Gif-sur-Yvette, France.
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Źródło:
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Bioresource technology [Bioresour Technol] 2020 Nov; Vol. 315, pp. 123819. Date of Electronic Publication: 2020 Jul 19.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Original Publication: Barking, Essex, England : New York, N.Y. : Elsevier Applied Science ; Elsevier Science Pub. Co., 1991-
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MeSH Terms:
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Wood*
Biomass ; Elasticity ; Kinetics ; Temperature
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Contributed Indexing:
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Keywords: Acidic; Alkaline; Lignocellulosic biomass; Modulus of elasticity; Poplar; Steam explosion; Viscoelasticity
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Entry Date(s):
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Date Created: 20200727 Date Completed: 20200819 Latest Revision: 20200819
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Update Code:
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20240105
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DOI:
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10.1016/j.biortech.2020.123819
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PMID:
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32712513
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This work aimed to use continuous measurements of viscoelastic properties to evaluate the effect of hydrothermal treatment on poplar samples. Different conditions (temperature and pre-soaking liquid: acidic, neutral and alkaline) were tested on wood in both tangential and radial directions. Two viscoelastic properties were determined: the modulus of elasticity and the stress relaxation. The applicability of these properties as indicators of the kinetics of biomass deconstruction was also evaluated, thanks to the chemical analyses performed on the treated solid and the recovered liquid phase. The ultimate goal is to build a macroscopic indicator capable of establishing rules to optimize the hydrothermal treatment before the explosion stage. The joint use of the two parameters succeeded in revealing the effects of chemical degradation, including the coexistence of cleavage and re-condensation and the impact of process conditions (temperature, residence time, and pre-soaking liquid). The monotonous behavior of stress relaxation is a major asset as a possible macroscopic indicator of biomass deconstruction.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2020 Elsevier Ltd. All rights reserved.)
