Hydrothermal carbonization of biomass as a route for the sequestration of CO2: Chemical and structural properties of the carbonized products

A highly functionalized carbonaceous material (hydrochar) was obtained by means of the hydrothermal carbonization (250 °C) of two representative types of biomass, i.e. eucalyptus sawdust and barley straw. This product has a brown colour; it contains around 50–60% of the carbon originally present in...

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Detalhes bibliográficos
Autores: Sevilla Solís, Marta, Maciá-Agulló, Juan Antonio, Fuertes Arias, Antonio Benito
Tipo de documento: artigo
Estado:Versión aceptada para publicación
Data de publicação:2011
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/100201
Acesso em linha:http://hdl.handle.net/10261/100201
Access Level:Acceso aberto
Palavra-chave:Biomass
Hydrotreatment
Carbonized biomass
CO2 sequestration
Eucalyptus globulus
Hordeum vulgare
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spelling Hydrothermal carbonization of biomass as a route for the sequestration of CO2: Chemical and structural properties of the carbonized productsSevilla Solís, MartaMaciá-Agulló, Juan AntonioFuertes Arias, Antonio BenitoBiomassHydrotreatmentCarbonized biomassCO2 sequestrationEucalyptus globulusHordeum vulgareA highly functionalized carbonaceous material (hydrochar) was obtained by means of the hydrothermal carbonization (250 °C) of two representative types of biomass, i.e. eucalyptus sawdust and barley straw. This product has a brown colour; it contains around 50–60% of the carbon originally present in the biomass and it is composed of particles that retain the cellular appearance of the raw material. These particles are covered by microspheres (1–10 μm) which were probably formed as a consequence of the transformation of the cellulose fraction. From a chemical point of view, the hydrochar products have a high degree of aromatization and they contain a large amount of oxygen-containing groups (i.e. carbonyl, carboxylic, hydroxyl, quinone, ester, etc) as was confirmed by Raman, IR and XPS spectroscopic techniques. The presence of these oxygen functionalities on the surface of the hydrochar particles explains their high water affinity (hydrophilic properties). On the basis of the highly condensed chemical nature of the hydrochar products, we postulated that this material has a recalcitrant nature that could lead to a significant increase in carbon turnover time in relation to the biomass. This suggests an important route for the sequestration of CO2 present in the atmosphere.The financial support for this research work provided by the Spanish MCyT (MAT2008-00407) is gratefully acknowledged. M. S. and J. A. M.-A. acknowledge the assistance of the Spanish MCyT for the award of a Postdoctoral Mobility contract and a Juan de la Cierva contract, respectively.Peer reviewedElsevierConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201420142011info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/100201reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.biombioe.2011.04.032Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1002012026-05-22T06:33:51Z
dc.title.none.fl_str_mv Hydrothermal carbonization of biomass as a route for the sequestration of CO2: Chemical and structural properties of the carbonized products
title Hydrothermal carbonization of biomass as a route for the sequestration of CO2: Chemical and structural properties of the carbonized products
spellingShingle Hydrothermal carbonization of biomass as a route for the sequestration of CO2: Chemical and structural properties of the carbonized products
Sevilla Solís, Marta
Biomass
Hydrotreatment
Carbonized biomass
CO2 sequestration
Eucalyptus globulus
Hordeum vulgare
title_short Hydrothermal carbonization of biomass as a route for the sequestration of CO2: Chemical and structural properties of the carbonized products
title_full Hydrothermal carbonization of biomass as a route for the sequestration of CO2: Chemical and structural properties of the carbonized products
title_fullStr Hydrothermal carbonization of biomass as a route for the sequestration of CO2: Chemical and structural properties of the carbonized products
title_full_unstemmed Hydrothermal carbonization of biomass as a route for the sequestration of CO2: Chemical and structural properties of the carbonized products
title_sort Hydrothermal carbonization of biomass as a route for the sequestration of CO2: Chemical and structural properties of the carbonized products
dc.creator.none.fl_str_mv Sevilla Solís, Marta
Maciá-Agulló, Juan Antonio
Fuertes Arias, Antonio Benito
author Sevilla Solís, Marta
author_facet Sevilla Solís, Marta
Maciá-Agulló, Juan Antonio
Fuertes Arias, Antonio Benito
author_role author
author2 Maciá-Agulló, Juan Antonio
Fuertes Arias, Antonio Benito
author2_role author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Biomass
Hydrotreatment
Carbonized biomass
CO2 sequestration
Eucalyptus globulus
Hordeum vulgare
topic Biomass
Hydrotreatment
Carbonized biomass
CO2 sequestration
Eucalyptus globulus
Hordeum vulgare
description A highly functionalized carbonaceous material (hydrochar) was obtained by means of the hydrothermal carbonization (250 °C) of two representative types of biomass, i.e. eucalyptus sawdust and barley straw. This product has a brown colour; it contains around 50–60% of the carbon originally present in the biomass and it is composed of particles that retain the cellular appearance of the raw material. These particles are covered by microspheres (1–10 μm) which were probably formed as a consequence of the transformation of the cellulose fraction. From a chemical point of view, the hydrochar products have a high degree of aromatization and they contain a large amount of oxygen-containing groups (i.e. carbonyl, carboxylic, hydroxyl, quinone, ester, etc) as was confirmed by Raman, IR and XPS spectroscopic techniques. The presence of these oxygen functionalities on the surface of the hydrochar particles explains their high water affinity (hydrophilic properties). On the basis of the highly condensed chemical nature of the hydrochar products, we postulated that this material has a recalcitrant nature that could lead to a significant increase in carbon turnover time in relation to the biomass. This suggests an important route for the sequestration of CO2 present in the atmosphere.
publishDate 2011
dc.date.none.fl_str_mv 2011
2014
2014
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/100201
url http://hdl.handle.net/10261/100201
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.biombioe.2011.04.032
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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