Enhancing CO2 capture performance through activation of olive pomace biochar: A comparative study of physical and chemical methods

This work contributes understanding technical feasibility use of an agro-industrial waste as raw material for CO2 capture. Physical and chemical activation treatments to enhance adsorption properties of exhausts olive pomace biochar were investigated. Innovatively, the effects of different kinds of...

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Autores: Alcázar Ruiz, Ángel, Maisano , S, Chiodo , V, Urbani , F, Dorado Fernández, Fernando, Sánchez Silva, María Luz
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/39546
Acceso en línea:https://doi.org/10.1016/j.susmat.2024.e01177
https://hdl.handle.net/10578/39546
Access Level:acceso abierto
Palabra clave:CO2 activation
CO2 storage
KOH activation
Olive pomace
Sustainable adsorbents
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spelling Enhancing CO2 capture performance through activation of olive pomace biochar: A comparative study of physical and chemical methodsAlcázar Ruiz, ÁngelMaisano , SChiodo , VUrbani , FDorado Fernández, FernandoSánchez Silva, María LuzCO2 activationCO2 storageKOH activationOlive pomaceSustainable adsorbentsThis work contributes understanding technical feasibility use of an agro-industrial waste as raw material for CO2 capture. Physical and chemical activation treatments to enhance adsorption properties of exhausts olive pomace biochar were investigated. Innovatively, the effects of different kinds of activating agents (steam, CO2, H3PO4 and KOH) on activated biocarbon's properties were deeply examined, also through an original high-pressure thermobalance, that is enabled higher initial sample weights, temperatures, and pressures compared to those employed in conventional methods. The activation conditions significantly affect the biochar morphology and CO2 adsorption capacity. Chemical activation, particularly with KOH, produced highly microporous structures, greatly enhancing CO2 adsorption. Specifically, KOH activation achieved adsorption capacities of up to 3.04 mmol/g at 30 °C and 10 bar. Textural analysis showed that KOH activation primarily increased microporosity, while other methods produced both micropores and mesopores. Interestingly, acid and physical activations were less effective, as they reduced CO2 adsorption due to changes in the internal structure. Thus, olive pomace proves to be a promising precursor for developing efficient biochar adsorbents. The use of KOH as an activating agent particularly stands out, achieving notable CO2 adsorption capacities.This work contributes understanding technical feasibility use of an agro-industrial waste as raw material for CO2 capture. Physical and chemical activation treatments to enhance adsorption properties of exhausts olive pomace biochar were investigated. Innovatively, the effects of different kinds of activating agents (steam, CO2, H3PO4 and KOH) on activated biocarbon's properties were deeply examined, also through an original high-pressure thermobalance, that is enabled higher initial sample weights, temperatures, and pressures compared to those employed in conventional methods. The activation conditions significantly affect the biochar morphology and CO2 adsorption capacity. Chemical activation, particularly with KOH, produced highly microporous structures, greatly enhancing CO2 adsorption. Specifically, KOH activation achieved adsorption capacities of up to 3.04 mmol/g at 30 °C and 10 bar. Textural analysis showed that KOH activation primarily increased microporosity, while other methods produced both micropores and mesopores. Interestingly, acid and physical activations were less effective, as they reduced CO2 adsorption due to changes in the internal structure. Thus, olive pomace proves to be a promising precursor for developing efficient biochar adsorbents. The use of KOH as an activating agent particularly stands out, achieving notable CO2 adsorption capacities.ELSEVIER202420242024info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://doi.org/10.1016/j.susmat.2024.e01177https://hdl.handle.net/10578/39546reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/395462026-05-27T07:36:41Z
dc.title.none.fl_str_mv Enhancing CO2 capture performance through activation of olive pomace biochar: A comparative study of physical and chemical methods
title Enhancing CO2 capture performance through activation of olive pomace biochar: A comparative study of physical and chemical methods
spellingShingle Enhancing CO2 capture performance through activation of olive pomace biochar: A comparative study of physical and chemical methods
Alcázar Ruiz, Ángel
CO2 activation
CO2 storage
KOH activation
Olive pomace
Sustainable adsorbents
title_short Enhancing CO2 capture performance through activation of olive pomace biochar: A comparative study of physical and chemical methods
title_full Enhancing CO2 capture performance through activation of olive pomace biochar: A comparative study of physical and chemical methods
title_fullStr Enhancing CO2 capture performance through activation of olive pomace biochar: A comparative study of physical and chemical methods
title_full_unstemmed Enhancing CO2 capture performance through activation of olive pomace biochar: A comparative study of physical and chemical methods
title_sort Enhancing CO2 capture performance through activation of olive pomace biochar: A comparative study of physical and chemical methods
dc.creator.none.fl_str_mv Alcázar Ruiz, Ángel
Maisano , S
Chiodo , V
Urbani , F
Dorado Fernández, Fernando
Sánchez Silva, María Luz
author Alcázar Ruiz, Ángel
author_facet Alcázar Ruiz, Ángel
Maisano , S
Chiodo , V
Urbani , F
Dorado Fernández, Fernando
Sánchez Silva, María Luz
author_role author
author2 Maisano , S
Chiodo , V
Urbani , F
Dorado Fernández, Fernando
Sánchez Silva, María Luz
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv CO2 activation
CO2 storage
KOH activation
Olive pomace
Sustainable adsorbents
topic CO2 activation
CO2 storage
KOH activation
Olive pomace
Sustainable adsorbents
description This work contributes understanding technical feasibility use of an agro-industrial waste as raw material for CO2 capture. Physical and chemical activation treatments to enhance adsorption properties of exhausts olive pomace biochar were investigated. Innovatively, the effects of different kinds of activating agents (steam, CO2, H3PO4 and KOH) on activated biocarbon's properties were deeply examined, also through an original high-pressure thermobalance, that is enabled higher initial sample weights, temperatures, and pressures compared to those employed in conventional methods. The activation conditions significantly affect the biochar morphology and CO2 adsorption capacity. Chemical activation, particularly with KOH, produced highly microporous structures, greatly enhancing CO2 adsorption. Specifically, KOH activation achieved adsorption capacities of up to 3.04 mmol/g at 30 °C and 10 bar. Textural analysis showed that KOH activation primarily increased microporosity, while other methods produced both micropores and mesopores. Interestingly, acid and physical activations were less effective, as they reduced CO2 adsorption due to changes in the internal structure. Thus, olive pomace proves to be a promising precursor for developing efficient biochar adsorbents. The use of KOH as an activating agent particularly stands out, achieving notable CO2 adsorption capacities.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://doi.org/10.1016/j.susmat.2024.e01177
https://hdl.handle.net/10578/39546
url https://doi.org/10.1016/j.susmat.2024.e01177
https://hdl.handle.net/10578/39546
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv ELSEVIER
publisher.none.fl_str_mv ELSEVIER
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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