Microalgae: Potential precursors of CO2 adsorbents

With faster growth rates and higher photosynthetic efficiencies than other terrestrial plants, microalgae biomass could be considered as a green, low-cost, alternative carbon source. This paper explores the potential use of various species of microalgae as activated carbon precursors. Chlorella and...

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Autores: Durán Vera, Inés, Rubiera González, Fernando, Pevida García, Covadonga
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2018
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/166600
Acceso en línea:http://hdl.handle.net/10261/166600
Access Level:acceso abierto
Palabra clave:Biomass
Microalgae
Adsorbents
Activated carbon
CO2 capture
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spelling Microalgae: Potential precursors of CO2 adsorbentsDurán Vera, InésRubiera González, FernandoPevida García, CovadongaBiomassMicroalgaeAdsorbentsActivated carbonCO2 captureWith faster growth rates and higher photosynthetic efficiencies than other terrestrial plants, microalgae biomass could be considered as a green, low-cost, alternative carbon source. This paper explores the potential use of various species of microalgae as activated carbon precursors. Chlorella and Spirulina were evaluated both as freeze-dried microalgae and in fresh paste form, while Acutodesmus Obliquus and Coelastrella sp. were studied only as paste. Activated carbons were produced using the selected species of microalgae as well as mixtures of pine sawdust and microalgae. Two different preparation routes were compared: with and without hydrothermal carbonization pretreatment before physical activation with CO2 in a single step. All samples were conformed into pellets prior to CO2 activation. The CO2 adsorption capacity of the microalgae derived carbons was assessed in conditions representative of a flue gas (10.5 vol.% CO2 at atmospheric pressure and 50 °C). Significant differences in terms of CO2 adsorption capacity, carbon yield and pellet density were obtained among the species studied. These preliminary results showed that activated carbons produced from microalgae mixed with pine sawdust and directly activated with CO2 are among the most promising adsorbents to capture CO2 from flue gas.This work has received financial support from the Spanish MINECO (RTC-2014-2109-5) and from the Gobierno del Principado de Asturias (PCTI 2013-2017 GRUPIN14-079).Peer reviewedElsevierMinisterio de Economía y Competitividad (España)Principado de AsturiasRubiera González, Fernando [0000-0003-0385-1102]Pevida García, Covadonga [0000-0002-4662-8448]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201820182018info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/166600reponame: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/RTC-2014-2109-5https://doi.org/10.1016/j.jcou.2018.06.001Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1666002026-05-22T06:33:51Z
dc.title.none.fl_str_mv Microalgae: Potential precursors of CO2 adsorbents
title Microalgae: Potential precursors of CO2 adsorbents
spellingShingle Microalgae: Potential precursors of CO2 adsorbents
Durán Vera, Inés
Biomass
Microalgae
Adsorbents
Activated carbon
CO2 capture
title_short Microalgae: Potential precursors of CO2 adsorbents
title_full Microalgae: Potential precursors of CO2 adsorbents
title_fullStr Microalgae: Potential precursors of CO2 adsorbents
title_full_unstemmed Microalgae: Potential precursors of CO2 adsorbents
title_sort Microalgae: Potential precursors of CO2 adsorbents
dc.creator.none.fl_str_mv Durán Vera, Inés
Rubiera González, Fernando
Pevida García, Covadonga
author Durán Vera, Inés
author_facet Durán Vera, Inés
Rubiera González, Fernando
Pevida García, Covadonga
author_role author
author2 Rubiera González, Fernando
Pevida García, Covadonga
author2_role author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Principado de Asturias
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 Biomass
Microalgae
Adsorbents
Activated carbon
CO2 capture
topic Biomass
Microalgae
Adsorbents
Activated carbon
CO2 capture
description With faster growth rates and higher photosynthetic efficiencies than other terrestrial plants, microalgae biomass could be considered as a green, low-cost, alternative carbon source. This paper explores the potential use of various species of microalgae as activated carbon precursors. Chlorella and Spirulina were evaluated both as freeze-dried microalgae and in fresh paste form, while Acutodesmus Obliquus and Coelastrella sp. were studied only as paste. Activated carbons were produced using the selected species of microalgae as well as mixtures of pine sawdust and microalgae. Two different preparation routes were compared: with and without hydrothermal carbonization pretreatment before physical activation with CO2 in a single step. All samples were conformed into pellets prior to CO2 activation. The CO2 adsorption capacity of the microalgae derived carbons was assessed in conditions representative of a flue gas (10.5 vol.% CO2 at atmospheric pressure and 50 °C). Significant differences in terms of CO2 adsorption capacity, carbon yield and pellet density were obtained among the species studied. These preliminary results showed that activated carbons produced from microalgae mixed with pine sawdust and directly activated with CO2 are among the most promising adsorbents to capture CO2 from flue gas.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018
2018
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/10261/166600
url http://hdl.handle.net/10261/166600
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/RTC-2014-2109-5
https://doi.org/10.1016/j.jcou.2018.06.001
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
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