Pelletization of torrefied biomass with solid and liquid bio-additives

Biomass commonly presents poor physical properties and low energy density that need to be enhanced. Torrefaction and densification are two of the most suitable techniques to this aim. In this work the pelletization of torrefied pine, blended with solid (raw pine and grape pomace) and liquid (glycero...

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Detalhes bibliográficos
Autores: García Fernández, Roberto, González Vázquez, María del Pilar, Martín Fernández, Antonio José, Pevida García, Covadonga, Rubiera González, Fernando
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/202524
Acesso em linha:http://hdl.handle.net/10261/202524
Access Level:acceso abierto
Palavra-chave:Biomass
Torrefaction
Pelletization
Waste biomass
Densification
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spelling Pelletization of torrefied biomass with solid and liquid bio-additivesGarcía Fernández, RobertoGonzález Vázquez, María del PilarMartín Fernández, Antonio JoséPevida García, CovadongaRubiera González, FernandoBiomassTorrefactionPelletizationWaste biomassDensificationBiomass commonly presents poor physical properties and low energy density that need to be enhanced. Torrefaction and densification are two of the most suitable techniques to this aim. In this work the pelletization of torrefied pine, blended with solid (raw pine and grape pomace) and liquid (glycerol) additives at low temperature (i.e., 40–80 °C) was carried out in a continuous bench-scale flat die pellet mill that simulates the features of a production-scale system. Among all the tested blends, four formulations fulfilled the requirements of the EN-Plus and ISO 17225-2 Industrial Pellets quality standards, which make them suitable fuels for both residential heating systems and power plant boilers. The produced pellets hold higher heating values between 18.8 and 21.7 MJ/kg, energy densities in the range 12.18–15.33 GJ/m3 and optimum physical properties (L = 20–25 mm, Ø = 6.1–6.2 mm, ρp = 1.1–1.2 g/cm3), in line with the reference pine pellets. A preliminary economic analysis was pursued proving that the improvements observed in formulations of torrefied pine, with 20 wt.% glycerol and with 10 wt.% grape pomace and 10 wt.% glycerol, may provide savings up to 20% in construction and transport costs.This work was supported by the Spanish MINECO (ENE2014-53515-P) and by the Gobierno del Principado de Asturias (PCTI, Ref. IDI/2018/000115), both with co-funding from the European Regional Development Fund (ERDF). M.P.G-V. also acknowledges a fellowship awarded by the Spanish MINECO (FPI program), cofinanced by the European Social Fund.Peer reviewedElsevierMinisterio de Economía y Competitividad (España)Principado de AsturiasPevida García, Covadonga [0000-0002-4662-8448]Rubiera González, Fernando [0000-0003-0385-1102]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202020202019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/202524reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ENE2014-53515-Phttps://doi.org/10.1016/j.renene.2019.11.004Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2025242026-05-22T06:33:51Z
dc.title.none.fl_str_mv Pelletization of torrefied biomass with solid and liquid bio-additives
title Pelletization of torrefied biomass with solid and liquid bio-additives
spellingShingle Pelletization of torrefied biomass with solid and liquid bio-additives
García Fernández, Roberto
Biomass
Torrefaction
Pelletization
Waste biomass
Densification
title_short Pelletization of torrefied biomass with solid and liquid bio-additives
title_full Pelletization of torrefied biomass with solid and liquid bio-additives
title_fullStr Pelletization of torrefied biomass with solid and liquid bio-additives
title_full_unstemmed Pelletization of torrefied biomass with solid and liquid bio-additives
title_sort Pelletization of torrefied biomass with solid and liquid bio-additives
dc.creator.none.fl_str_mv García Fernández, Roberto
González Vázquez, María del Pilar
Martín Fernández, Antonio José
Pevida García, Covadonga
Rubiera González, Fernando
author García Fernández, Roberto
author_facet García Fernández, Roberto
González Vázquez, María del Pilar
Martín Fernández, Antonio José
Pevida García, Covadonga
Rubiera González, Fernando
author_role author
author2 González Vázquez, María del Pilar
Martín Fernández, Antonio José
Pevida García, Covadonga
Rubiera González, Fernando
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Principado de Asturias
Pevida García, Covadonga [0000-0002-4662-8448]
Rubiera González, Fernando [0000-0003-0385-1102]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Biomass
Torrefaction
Pelletization
Waste biomass
Densification
topic Biomass
Torrefaction
Pelletization
Waste biomass
Densification
description Biomass commonly presents poor physical properties and low energy density that need to be enhanced. Torrefaction and densification are two of the most suitable techniques to this aim. In this work the pelletization of torrefied pine, blended with solid (raw pine and grape pomace) and liquid (glycerol) additives at low temperature (i.e., 40–80 °C) was carried out in a continuous bench-scale flat die pellet mill that simulates the features of a production-scale system. Among all the tested blends, four formulations fulfilled the requirements of the EN-Plus and ISO 17225-2 Industrial Pellets quality standards, which make them suitable fuels for both residential heating systems and power plant boilers. The produced pellets hold higher heating values between 18.8 and 21.7 MJ/kg, energy densities in the range 12.18–15.33 GJ/m3 and optimum physical properties (L = 20–25 mm, Ø = 6.1–6.2 mm, ρp = 1.1–1.2 g/cm3), in line with the reference pine pellets. A preliminary economic analysis was pursued proving that the improvements observed in formulations of torrefied pine, with 20 wt.% glycerol and with 10 wt.% grape pomace and 10 wt.% glycerol, may provide savings up to 20% in construction and transport costs.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
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/10261/202524
url http://hdl.handle.net/10261/202524
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ENE2014-53515-P
https://doi.org/10.1016/j.renene.2019.11.004
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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score 15,198674

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