FGD-Gypsum Waste to Capture CO2 and to Recycle in Building Materials: Optimal Reaction Yield and Preliminary Mechanical Properties

© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

Detalles Bibliográficos
Autores: Moreno, Virginia, González Arias, Judith, Ruiz Martínez, Jaime D., Balart-Gimeno, Rafael, Baena-Moreno, Francisco M., Leiva Fernández, Carlos
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/165215
Acceso en línea:https://hdl.handle.net/11441/165215
https://doi.org/10.3390/ma17153774
Access Level:acceso abierto
Palabra clave:Building material
Calcium carbonate
CO2 capture
Flue gas desulfurization
Waste valorization
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spelling FGD-Gypsum Waste to Capture CO2 and to Recycle in Building Materials: Optimal Reaction Yield and Preliminary Mechanical PropertiesMoreno, VirginiaGonzález Arias, JudithRuiz Martínez, Jaime D.Balart-Gimeno, RafaelBaena-Moreno, Francisco M.Leiva Fernández, CarlosBuilding materialCalcium carbonateCO2 captureFlue gas desulfurizationWaste valorization© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).The use of waste to capture CO2 has been on the rise, to reduce costs and to improve the environmental footprint. Here, a flue gas desulfurization (FGD) gypsum waste is proposed, which allows us to obtain a CaCO3-based solid, which should be recycled. The CO2 capture stage has primarily been carried out via the direct carbonation method or at high temperature. However, a high energy penalty and/or long reaction times make it unattractive from an industrial perspective. To avoid this, herein an indirect method is proposed, based on first capturing the CO2 with NaOH and later using an aqueous carbonation stage. This allows us to capture CO2 at a near-ambient temperature, improving reaction times and avoiding the energy penalty. The parameters studied were Ca2+/CO32− ratio, L/S ratio and temperature. Each of them has been optimized, with 1.25, 100 mL/g and 25 °C being the optimal values, respectively, reaching an efficiency of 72.52%. Furthermore, the utilization of the produced CaCO3 as a building material has been analyzed. The density, superficial hardness and the compressive strength of a material composed of 10 wt% of CaCO3 and 90 wt% of commercial gypsum, with a water/solid ratio of 0.5, is measured. When the waste is added, the density and the mechanical properties decreased, although the compressive strength and superficial hardness are higher than the requirements for gypsum panels. Thus, this work is promising for the carbonation of FGD-gypsum, which involves its chemical transformation into calcium carbonate through reacting it with the CO2 of flue gasses and recycling the generated wastes in construction materials.Multidisciplinary Digital Publishing Institute (MDPI)Ingeniería Química y AmbientalTEP142: Ingeniería de ResiduosMinisterio de Ciencia e Innovación (MICIN). EspañaAgencia Estatal de Investigación. EspañaEuropean Union (UE)2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/165215https://doi.org/10.3390/ma17153774reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésMaterials, 17 (15), 3774.FJC2021-047672-IPID2019-110928RB-C33https://www.mdpi.com/1996-1944/17/15/3774info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1652152026-06-17T12:51:07Z
dc.title.none.fl_str_mv FGD-Gypsum Waste to Capture CO2 and to Recycle in Building Materials: Optimal Reaction Yield and Preliminary Mechanical Properties
title FGD-Gypsum Waste to Capture CO2 and to Recycle in Building Materials: Optimal Reaction Yield and Preliminary Mechanical Properties
spellingShingle FGD-Gypsum Waste to Capture CO2 and to Recycle in Building Materials: Optimal Reaction Yield and Preliminary Mechanical Properties
Moreno, Virginia
Building material
Calcium carbonate
CO2 capture
Flue gas desulfurization
Waste valorization
title_short FGD-Gypsum Waste to Capture CO2 and to Recycle in Building Materials: Optimal Reaction Yield and Preliminary Mechanical Properties
title_full FGD-Gypsum Waste to Capture CO2 and to Recycle in Building Materials: Optimal Reaction Yield and Preliminary Mechanical Properties
title_fullStr FGD-Gypsum Waste to Capture CO2 and to Recycle in Building Materials: Optimal Reaction Yield and Preliminary Mechanical Properties
title_full_unstemmed FGD-Gypsum Waste to Capture CO2 and to Recycle in Building Materials: Optimal Reaction Yield and Preliminary Mechanical Properties
title_sort FGD-Gypsum Waste to Capture CO2 and to Recycle in Building Materials: Optimal Reaction Yield and Preliminary Mechanical Properties
dc.creator.none.fl_str_mv Moreno, Virginia
González Arias, Judith
Ruiz Martínez, Jaime D.
Balart-Gimeno, Rafael
Baena-Moreno, Francisco M.
Leiva Fernández, Carlos
author Moreno, Virginia
author_facet Moreno, Virginia
González Arias, Judith
Ruiz Martínez, Jaime D.
Balart-Gimeno, Rafael
Baena-Moreno, Francisco M.
Leiva Fernández, Carlos
author_role author
author2 González Arias, Judith
Ruiz Martínez, Jaime D.
Balart-Gimeno, Rafael
Baena-Moreno, Francisco M.
Leiva Fernández, Carlos
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ingeniería Química y Ambiental
TEP142: Ingeniería de Residuos
Ministerio de Ciencia e Innovación (MICIN). España
Agencia Estatal de Investigación. España
European Union (UE)
dc.subject.none.fl_str_mv Building material
Calcium carbonate
CO2 capture
Flue gas desulfurization
Waste valorization
topic Building material
Calcium carbonate
CO2 capture
Flue gas desulfurization
Waste valorization
description © 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
publishDate 2024
dc.date.none.fl_str_mv 2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/165215
https://doi.org/10.3390/ma17153774
url https://hdl.handle.net/11441/165215
https://doi.org/10.3390/ma17153774
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Materials, 17 (15), 3774.
FJC2021-047672-I
PID2019-110928RB-C33
https://www.mdpi.com/1996-1944/17/15/3774
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 Multidisciplinary Digital Publishing Institute (MDPI)
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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