Pelletization of wood and alternative residual biomass blends for producing industrial quality pellets

Pellets for industrial use were produced from blends of pine sawdust (PIN) and alternative residual biomasses in a pilot-scale pelletizer. The effect of the pelletization temperature (T = 50–80 °C) and biomass moisture content (MC = 14–20%) on pine sawdust pellet quality was studied by using respons...

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Autores: García Fernández, Roberto, Gil Matellanes, María Victoria, Rubiera González, Fernando, Pevida García, Covadonga
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/180454
Acceso en línea:http://hdl.handle.net/10261/180454
Access Level:acceso abierto
Palabra clave:Pelletization
Residual biomass
Industrial pellet
Durability
Bulk density
Energy consumption
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spelling Pelletization of wood and alternative residual biomass blends for producing industrial quality pelletsGarcía Fernández, RobertoGil Matellanes, María VictoriaRubiera González, FernandoPevida García, CovadongaPelletizationResidual biomassIndustrial pelletDurabilityBulk densityEnergy consumptionPellets for industrial use were produced from blends of pine sawdust (PIN) and alternative residual biomasses in a pilot-scale pelletizer. The effect of the pelletization temperature (T = 50–80 °C) and biomass moisture content (MC = 14–20%) on pine sawdust pellet quality was studied by using response surface methodology (RSM). Pelletization performance was evaluated on the basis of the durability, bulk density, moisture content, lower heating value (LHV), energy density, diameter, length and density of the pellets. From the RSM analysis, a maximum durability value of 99.4% was obtained at T = 80 °C and MC = 16.6%. Under these conditions, all the parameters showed values within the required range of industrial pellet qualities, i.e., a bulk density of 616 kg/m3, a pellet moisture content of 7.6%, a lower heating value (as received) of 18 MJ/kg, a diameter of 6.2 mm and a length of 23.4 mm. Blends of pine sawdust with eleven unconventional biomass samples were then pelletized under the optimum conditions to obtain pellets for industrial use according to the categories of quality defined by ISO 17225-2. Blends of pine sawdust with almond shells (AS) and olive stones (OS) contents of up to 30 wt%, as well as with pine cone leafs (PCL) contents of up to 15 wt%, produced I1 pellets. Blends of pine sawdust with coffee dregs (CD), coffee husks (CH) and grape pomace (GP) proportions of up to 10 wt%, as well as with hazelnut shells (HS), miscanthus (MIS), pine kernel shells (PKS) and switchgrass (SG) contents of up to 15 wt%, and also with a PCL content of between 15 and 30 wt%, generated I3 class pellets. Classification was not possible for cocoa shells (CS) mixed with pine sawdust due to the low bulk density of the pellets. Energy consumption resulting from the pelletization of the blends was evaluated with values ranging from 0.09 to 0.33 kWh/kg, while the pelletization of pine sawdust required 0.18 kWh/kg. The addition of alternative biomass feedstocks to pine sawdust may therefore serve to reduce energy consumption in industrial pelletization.Financial support from the CSIC (Spain) (Project PIE 201780E057) and from the Gobierno del Principado de Asturias (PCTI, Ref. IDI/2018/000115) with co-funding from the European Regional Development Fund (ERDF) is gratefully acknowledged.Peer reviewedElsevierConsejo Superior de Investigaciones Científicas (España)Principado de AsturiasGil Matellanes, María Victoria [0000-0002-2258-3011]Rubiera González, Fernando [0000-0003-0385-1102]Pevida García, Covadonga [0000-0002-4662-8448]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201920192019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/180454reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1016/j.fuel.2019.03.141Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1804542026-05-22T06:33:51Z
dc.title.none.fl_str_mv Pelletization of wood and alternative residual biomass blends for producing industrial quality pellets
title Pelletization of wood and alternative residual biomass blends for producing industrial quality pellets
spellingShingle Pelletization of wood and alternative residual biomass blends for producing industrial quality pellets
García Fernández, Roberto
Pelletization
Residual biomass
Industrial pellet
Durability
Bulk density
Energy consumption
title_short Pelletization of wood and alternative residual biomass blends for producing industrial quality pellets
title_full Pelletization of wood and alternative residual biomass blends for producing industrial quality pellets
title_fullStr Pelletization of wood and alternative residual biomass blends for producing industrial quality pellets
title_full_unstemmed Pelletization of wood and alternative residual biomass blends for producing industrial quality pellets
title_sort Pelletization of wood and alternative residual biomass blends for producing industrial quality pellets
dc.creator.none.fl_str_mv García Fernández, Roberto
Gil Matellanes, María Victoria
Rubiera González, Fernando
Pevida García, Covadonga
author García Fernández, Roberto
author_facet García Fernández, Roberto
Gil Matellanes, María Victoria
Rubiera González, Fernando
Pevida García, Covadonga
author_role author
author2 Gil Matellanes, María Victoria
Rubiera González, Fernando
Pevida García, Covadonga
author2_role author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas (España)
Principado de Asturias
Gil Matellanes, María Victoria [0000-0002-2258-3011]
Rubiera González, Fernando [0000-0003-0385-1102]
Pevida García, Covadonga [0000-0002-4662-8448]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Pelletization
Residual biomass
Industrial pellet
Durability
Bulk density
Energy consumption
topic Pelletization
Residual biomass
Industrial pellet
Durability
Bulk density
Energy consumption
description Pellets for industrial use were produced from blends of pine sawdust (PIN) and alternative residual biomasses in a pilot-scale pelletizer. The effect of the pelletization temperature (T = 50–80 °C) and biomass moisture content (MC = 14–20%) on pine sawdust pellet quality was studied by using response surface methodology (RSM). Pelletization performance was evaluated on the basis of the durability, bulk density, moisture content, lower heating value (LHV), energy density, diameter, length and density of the pellets. From the RSM analysis, a maximum durability value of 99.4% was obtained at T = 80 °C and MC = 16.6%. Under these conditions, all the parameters showed values within the required range of industrial pellet qualities, i.e., a bulk density of 616 kg/m3, a pellet moisture content of 7.6%, a lower heating value (as received) of 18 MJ/kg, a diameter of 6.2 mm and a length of 23.4 mm. Blends of pine sawdust with eleven unconventional biomass samples were then pelletized under the optimum conditions to obtain pellets for industrial use according to the categories of quality defined by ISO 17225-2. Blends of pine sawdust with almond shells (AS) and olive stones (OS) contents of up to 30 wt%, as well as with pine cone leafs (PCL) contents of up to 15 wt%, produced I1 pellets. Blends of pine sawdust with coffee dregs (CD), coffee husks (CH) and grape pomace (GP) proportions of up to 10 wt%, as well as with hazelnut shells (HS), miscanthus (MIS), pine kernel shells (PKS) and switchgrass (SG) contents of up to 15 wt%, and also with a PCL content of between 15 and 30 wt%, generated I3 class pellets. Classification was not possible for cocoa shells (CS) mixed with pine sawdust due to the low bulk density of the pellets. Energy consumption resulting from the pelletization of the blends was evaluated with values ranging from 0.09 to 0.33 kWh/kg, while the pelletization of pine sawdust required 0.18 kWh/kg. The addition of alternative biomass feedstocks to pine sawdust may therefore serve to reduce energy consumption in industrial pelletization.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
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/10261/180454
url http://hdl.handle.net/10261/180454
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1016/j.fuel.2019.03.141
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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