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Hydrolysis of high concentration lignocellulose suspensions with a cumulative feeding strategy: rheometry and morphogranulometry

dc.rights.licenseopen
hal.structure.identifierLaboratoire d'Ingénierie des Systèmes Biologiques et des Procédés [LISBP]
dc.contributor.authorNGUYEN, Tien-Cuong
hal.structure.identifierInstitut de mécanique des fluides de Toulouse [IMFT]
dc.contributor.authorANNE-ARCHARD, Dominique
hal.structure.identifierInstitut Polytechnique de Bordeaux [Bordeaux INP]
hal.structure.identifierEcole Nationale Supérieure de Chimie et de Physique de Bordeaux [ENSCPB]
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
dc.contributor.authorCOMA, Veronique
hal.structure.identifierLaboratoire d'Ingénierie des Systèmes Biologiques et des Procédés [LISBP]
dc.contributor.authorCAMELEYRE, Xavier
hal.structure.identifierLaboratoire d'Ingénierie des Systèmes Biologiques et des Procédés [LISBP]
dc.contributor.authorLOMBARD, Eric
hal.structure.identifierSchool of Biotechnology and Food Technology
dc.contributor.authorTO, Kim Anh
hal.structure.identifierLaboratoire d'Ingénierie des Systèmes Biologiques et des Procédés [LISBP]
hal.structure.identifierSchool of Biotechnology and Food Technology
dc.contributor.authorLE, Tuan
hal.structure.identifierLaboratoire d'Ingénierie des Systèmes Biologiques et des Procédés [LISBP]
dc.contributor.authorFILLAUDEAU, Luc
dc.date.accessioned2020
dc.date.available2020
dc.date.issued2014
dc.date.conference2014
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/19673
dc.description.abstractEnBioconversion of lignocelluloses is currently a major challenge if biorefining operations are to become commonplace. The objectives of the present work were to understand and describe the evolution of physical properties of lignocellulose suspensions during enzyme-based hydrolysis reaction. Experimental set-up and methodology were developed in order to carry out a multiscale study of the lignocellulosic materials under high dry content. In-situ and ex-situ rheometry and morpho-granulometry measurements were used to investigate transfer limitations (Fig. 1). Rheological behaviour was modelled and critical concentrations (Ccrit) inducing a sharp increase of viscosity were identified with Whatman paper (WP, 35 gdm/L) and paper pulp (PP, 31 gdm/L) [1]. In a first step, hydrolysis experiments demonstrate that single dimensionless viscosity-time curves, µ*=f(t*), could be established for each substrates. Analysing hydrolysis experiments lead to assume an optimal feed rate Q* linked to the critical concentration. In a second step, cumulative feeding strategies (up to 10%w/w) were conducted for WP and PP with different ratios Q/Q*. Results report the evolution of viscosity, hydrolysis rate (Fig. 2) and mean particle size. Mixing power during suspension and hydrolysis steps are discussed as a function of hydrolysis rates.
dc.language.isoen
dc.subject.enHydrolysis
dc.subject.enLignocellulose
dc.subject.enViscosity
dc.subject.enParticle size
dc.subject.enBioconversion
dc.title.enHydrolysis of high concentration lignocellulose suspensions with a cumulative feeding strategy: rheometry and morphogranulometry
dc.typeCommunication dans un congrès avec actes
dc.subject.halSciences du Vivant [q-bio]
bordeaux.pagenp
bordeaux.hal.laboratoriesLaboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629*
bordeaux.institutionBordeaux INP
bordeaux.institutionUniversité de Bordeaux
bordeaux.countryFR
bordeaux.title.proceeding10. European Symposium on Biochemical Engineering Sciences (ESBES)
bordeaux.conference.cityLille
bordeaux.peerReviewedoui
hal.identifierhal-01886482
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01886482v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2014&rft.spage=np&rft.epage=np&rft.au=NGUYEN,%20Tien-Cuong&ANNE-ARCHARD,%20Dominique&COMA,%20Veronique&CAMELEYRE,%20Xavier&LOMBARD,%20Eric&rft.genre=proceeding


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