High enhancement of the hydrolysis rate of cellulose after pretreatment with inorganic salt hydrates

[EN] We study the use of inorganic salt hydrates as solvents in the dissolution/precipitation pretreatment of cellulose. The dissolution of cellulose was very fast (15 min in some cases) at the low temperature of 70 °C. ZnCl2·4H2O, ZnBr2·4H2O, LiCl·8H2O and LiBr·4H2O were studied as solvent. The dis...

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Detalles Bibliográficos
Autores: Lara-Serrano, Marta, Morales-delaRosa, Silvia, Campos Martín, José Miguel, García Fierro, José Luis
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/215993
Acceso en línea:http://hdl.handle.net/10261/215993
Access Level:acceso abierto
Palabra clave:Sources of energy
Lignocellulosic waste
Inorganic salt hydrates
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spelling High enhancement of the hydrolysis rate of cellulose after pretreatment with inorganic salt hydratesLara-Serrano, MartaMorales-delaRosa, SilviaCampos Martín, José MiguelGarcía Fierro, José LuisSources of energyLignocellulosic wasteInorganic salt hydrates[EN] We study the use of inorganic salt hydrates as solvents in the dissolution/precipitation pretreatment of cellulose. The dissolution of cellulose was very fast (15 min in some cases) at the low temperature of 70 °C. ZnCl2·4H2O, ZnBr2·4H2O, LiCl·8H2O and LiBr·4H2O were studied as solvent. The dissolution/precipitation process dramatically modified the cellulose structure, which was completely deconstructed, as corroborated by both XRD and SEM. The nature of these salts affects cellulose dissolution. The change in cellulose morphology after dissolution/precipitation pretreatment produced an increase in the rate of hydrolysis with respect to that of untreated cellulose. The acidic catalyst employed in hydrolysis had a moderate effect on the reaction results. The best performance was obtained with H4SiW12O40 (0.05 M) at 140 °C for 300 min, where the cellulose conversion was close to 99% and the glucose yield was 90%.This research was funded by Comunidad de Madrid (Spain) and ERDF (European Regional Development Fund), grant numbers S2013/MAE-2882 (RESTOENE-2-CM), P2018/EMT-4344 (BIOTRES-CM) and CSIC (201880E029). MLS acknowledges the support of the European Social Fund and Community of Madrid for her contract. We acknowledge support of the publication fee by the CSIC Open Access Publication Support Initiative through its Unit of Information Resources for Research (URICI).Peer reviewedRoyal Society of Chemistry (UK)Comunidad de MadridConsejo Superior de Investigaciones Científicas (España)CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)Lara-Serrano, Marta [0000-0001-6241-0927]Morales-de la Rosa, Silvia [0000-0002-4304-5036]Campos Martín, José Miguel [0000-0002-7913-9851]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202020202020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/215993reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#S2013/MAE-2882/RESTOENE-2-CMP2018/EMT-4344/BIOTRES-CMhttps://doi.org/10.1039/D0GC01066ASíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2159932026-05-22T06:33:51Z
dc.title.none.fl_str_mv High enhancement of the hydrolysis rate of cellulose after pretreatment with inorganic salt hydrates
title High enhancement of the hydrolysis rate of cellulose after pretreatment with inorganic salt hydrates
spellingShingle High enhancement of the hydrolysis rate of cellulose after pretreatment with inorganic salt hydrates
Lara-Serrano, Marta
Sources of energy
Lignocellulosic waste
Inorganic salt hydrates
title_short High enhancement of the hydrolysis rate of cellulose after pretreatment with inorganic salt hydrates
title_full High enhancement of the hydrolysis rate of cellulose after pretreatment with inorganic salt hydrates
title_fullStr High enhancement of the hydrolysis rate of cellulose after pretreatment with inorganic salt hydrates
title_full_unstemmed High enhancement of the hydrolysis rate of cellulose after pretreatment with inorganic salt hydrates
title_sort High enhancement of the hydrolysis rate of cellulose after pretreatment with inorganic salt hydrates
dc.creator.none.fl_str_mv Lara-Serrano, Marta
Morales-delaRosa, Silvia
Campos Martín, José Miguel
García Fierro, José Luis
author Lara-Serrano, Marta
author_facet Lara-Serrano, Marta
Morales-delaRosa, Silvia
Campos Martín, José Miguel
García Fierro, José Luis
author_role author
author2 Morales-delaRosa, Silvia
Campos Martín, José Miguel
García Fierro, José Luis
author2_role author
author
author
dc.contributor.none.fl_str_mv Comunidad de Madrid
Consejo Superior de Investigaciones Científicas (España)
CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)
Lara-Serrano, Marta [0000-0001-6241-0927]
Morales-de la Rosa, Silvia [0000-0002-4304-5036]
Campos Martín, José Miguel [0000-0002-7913-9851]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Sources of energy
Lignocellulosic waste
Inorganic salt hydrates
topic Sources of energy
Lignocellulosic waste
Inorganic salt hydrates
description [EN] We study the use of inorganic salt hydrates as solvents in the dissolution/precipitation pretreatment of cellulose. The dissolution of cellulose was very fast (15 min in some cases) at the low temperature of 70 °C. ZnCl2·4H2O, ZnBr2·4H2O, LiCl·8H2O and LiBr·4H2O were studied as solvent. The dissolution/precipitation process dramatically modified the cellulose structure, which was completely deconstructed, as corroborated by both XRD and SEM. The nature of these salts affects cellulose dissolution. The change in cellulose morphology after dissolution/precipitation pretreatment produced an increase in the rate of hydrolysis with respect to that of untreated cellulose. The acidic catalyst employed in hydrolysis had a moderate effect on the reaction results. The best performance was obtained with H4SiW12O40 (0.05 M) at 140 °C for 300 min, where the cellulose conversion was close to 99% and the glucose yield was 90%.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/215993
url http://hdl.handle.net/10261/215993
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
S2013/MAE-2882/RESTOENE-2-CM
P2018/EMT-4344/BIOTRES-CM
https://doi.org/10.1039/D0GC01066A
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Royal Society of Chemistry (UK)
publisher.none.fl_str_mv Royal Society of Chemistry (UK)
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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