INFLUENCE OF REACTION CONDITIONS ON LIGNIN HYDROTHERMAL TREATMENT

Organosolv lignin, obtained from olive tree pruning under optimised conditions, was subjected to a hydrothermal depolymerisation process catalysed by sodium hydroxide. The depolymerisation of lignin was carried out at 300 ºC using different reaction times (20, 40, 60, 70, 80, 90 and 100 min) in orde...

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Main Authors: Xabier eErdocia, Raquel ePrado, M. Ángeles eCorcuera, Jalel eLabidi
Format: Article
Language:English
Published: Frontiers Media S.A. 2014-04-01
Series:Frontiers in Energy Research
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fenrg.2014.00013/full
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author Xabier eErdocia
Raquel ePrado
M. Ángeles eCorcuera
Jalel eLabidi
author_facet Xabier eErdocia
Raquel ePrado
M. Ángeles eCorcuera
Jalel eLabidi
author_sort Xabier eErdocia
collection DOAJ
description Organosolv lignin, obtained from olive tree pruning under optimised conditions, was subjected to a hydrothermal depolymerisation process catalysed by sodium hydroxide. The depolymerisation of lignin was carried out at 300 ºC using different reaction times (20, 40, 60, 70, 80, 90 and 100 min) in order to study the influence of this parameter on lignin depolymerisation. The resulting products (oil and residual lignin) were measured and analysed by different techniques (GC/MS, HPSEC and pyrolysis-GC/MS) in order to determine their nature and composition. Coke was also formed, at a lower quantity, incompetitive repolymerisation reactions during the lignin hydrothermal treatment. The maximum oil yield and concentration of monomeric phenolic compounds was obtained after80 min of reaction time. The highest reaction time studied (100 min) had the worst results with the lowest oil yield and highest coke production.
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spelling doaj.art-d6d93a8b20724a54aedd65b3b9c8016e2022-12-22T03:34:22ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2014-04-01210.3389/fenrg.2014.0001380061INFLUENCE OF REACTION CONDITIONS ON LIGNIN HYDROTHERMAL TREATMENTXabier eErdocia0Raquel ePrado1M. Ángeles eCorcuera2Jalel eLabidi3University of the Basque CountryUniversity of the Basque CountryUniversity of the Basque CountryUniversity of the Basque CountryOrganosolv lignin, obtained from olive tree pruning under optimised conditions, was subjected to a hydrothermal depolymerisation process catalysed by sodium hydroxide. The depolymerisation of lignin was carried out at 300 ºC using different reaction times (20, 40, 60, 70, 80, 90 and 100 min) in order to study the influence of this parameter on lignin depolymerisation. The resulting products (oil and residual lignin) were measured and analysed by different techniques (GC/MS, HPSEC and pyrolysis-GC/MS) in order to determine their nature and composition. Coke was also formed, at a lower quantity, incompetitive repolymerisation reactions during the lignin hydrothermal treatment. The maximum oil yield and concentration of monomeric phenolic compounds was obtained after80 min of reaction time. The highest reaction time studied (100 min) had the worst results with the lowest oil yield and highest coke production.http://journal.frontiersin.org/Journal/10.3389/fenrg.2014.00013/fullLignintimephenolic compoundshomogeneous catalysisDepolymerizationOrganosolv.
spellingShingle Xabier eErdocia
Raquel ePrado
M. Ángeles eCorcuera
Jalel eLabidi
INFLUENCE OF REACTION CONDITIONS ON LIGNIN HYDROTHERMAL TREATMENT
Frontiers in Energy Research
Lignin
time
phenolic compounds
homogeneous catalysis
Depolymerization
Organosolv.
title INFLUENCE OF REACTION CONDITIONS ON LIGNIN HYDROTHERMAL TREATMENT
title_full INFLUENCE OF REACTION CONDITIONS ON LIGNIN HYDROTHERMAL TREATMENT
title_fullStr INFLUENCE OF REACTION CONDITIONS ON LIGNIN HYDROTHERMAL TREATMENT
title_full_unstemmed INFLUENCE OF REACTION CONDITIONS ON LIGNIN HYDROTHERMAL TREATMENT
title_short INFLUENCE OF REACTION CONDITIONS ON LIGNIN HYDROTHERMAL TREATMENT
title_sort influence of reaction conditions on lignin hydrothermal treatment
topic Lignin
time
phenolic compounds
homogeneous catalysis
Depolymerization
Organosolv.
url http://journal.frontiersin.org/Journal/10.3389/fenrg.2014.00013/full
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AT raqueleprado influenceofreactionconditionsonligninhydrothermaltreatment
AT mangelesecorcuera influenceofreactionconditionsonligninhydrothermaltreatment
AT jalelelabidi influenceofreactionconditionsonligninhydrothermaltreatment