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Supercritical water conversion of glycerol : comparative parametric study between batch and continuous process

hal.structure.identifierCentre de recherche d'Albi en génie des procédés des solides divisés, de l'énergie et de l'environnement [RAPSODEE]
dc.contributor.authorWU, Qian
dc.contributor.authorBULZA, Silviu
dc.contributor.authorCORCOVEANU, C.
hal.structure.identifierCentre de recherche d'Albi en génie des procédés des solides divisés, de l'énergie et de l'environnement [RAPSODEE]
dc.contributor.authorWEISS-HORTALA, Elsa
hal.structure.identifierCentre de recherche d'Albi en génie des procédés des solides divisés, de l'énergie et de l'environnement [RAPSODEE]
dc.contributor.authorBARNA, Radu
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLOPPINET SERANI, Anne
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorAYMONIER, Cyril
dc.date.issued2011
dc.date.conference2011-10-09
dc.description.abstractEn• Glycerol, a main by-product of the biodiesel production, has a high valorization potential. This paper proposes a comparison of hydrogen production from glycerol using batch (5 mL and 500 mL) and continuous (100 mL) processes. The influence of different operating parameters has been studied: temperature (450°C-600°C), pressure (20-28MPa), glycerol concentration (5-20wt%), catalyst concentration (K 2 CO 3 or NaOH, 0-5 wt%), reaction time (5-120 min, batch), residence time (12 min, continuous process), stirring rate (500-1500 rpm, batch of 500ml), and heating rate (50% and 100% of heating power). • Quantitative glycerol conversion has been observed: until 99% of TOC removal by SCWG. While the amount of solid formed is insignificant, the produced gas volume reached 43 L gas/L solution (5 wt% glycerol) with a molar composition up to 60% H 2 and 30% CO 2 (atmospheric pressure). Various proportions of CH 4 , C 2 H 6 and C 2 H 4 have been observed. Catalyst contribution to the gasification yield of glycerol is relevant. • SCW conversion of glycerol, quantitative by-product in biodiesel industry, into hydrogen is a sustainable process. The yield obtained in the continuous laboratory reactor (3 mol H 2 /L of reactor/h) under homogeneous catalysis (K salts, low concentrations) recommends the process for further research and pilot development.
dc.language.isoen
dc.publisherINTERNATIONAL SOCIETY FOR THE ADVANCEMENT OF SUPERCRITICAL FLUIDS
dc.source.title13th European meeting on supercritical fluids
dc.subject.enGlycerol
dc.subject.enK 2 CO 3
dc.subject.enNaOH
dc.subject.enHydrogen
dc.subject.enSupercritical water
dc.subject.enBatch
dc.subject.enContinuous reactor
dc.title.enSupercritical water conversion of glycerol : comparative parametric study between batch and continuous process
dc.typeCommunication dans un congrès
dc.subject.halSciences de l'ingénieur [physics]
bordeaux.page12 p.
bordeaux.countryNL
bordeaux.title.proceeding13th European meeting on supercritical fluids
bordeaux.conference.cityThe Hague
bordeaux.peerReviewedoui
hal.identifierhal-01753250
hal.version1
hal.invitednon
hal.proceedingsoui
hal.conference.end2011-10-12
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01753250v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=13th%20European%20meeting%20on%20supercritical%20fluids&rft.date=2011&rft.spage=12%20p.&rft.epage=12%20p.&rft.au=WU,%20Qian&BULZA,%20Silviu&CORCOVEANU,%20C.&WEISS-HORTALA,%20Elsa&BARNA,%20Radu&rft.genre=unknown


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