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The potential of FBC fly ashes to reduce CO(2) emissions

The production of electricity and heat in Poland is the reason why the commercial power industry is the largest emitter of CO(2). At the same time, significant amounts of solid by-products of combustion, which can be used to bind CO(2) by mineral carbonation, are generated during the production proc...

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Autores principales: Uliasz-Bocheńczyk, Alicja, Mokrzycki, Eugeniusz
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7289873/
https://www.ncbi.nlm.nih.gov/pubmed/32528018
http://dx.doi.org/10.1038/s41598-020-66297-y
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author Uliasz-Bocheńczyk, Alicja
Mokrzycki, Eugeniusz
author_facet Uliasz-Bocheńczyk, Alicja
Mokrzycki, Eugeniusz
author_sort Uliasz-Bocheńczyk, Alicja
collection PubMed
description The production of electricity and heat in Poland is the reason why the commercial power industry is the largest emitter of CO(2). At the same time, significant amounts of solid by-products of combustion, which can be used to bind CO(2) by mineral carbonation, are generated during the production processes. The article presents the results of research on mineral sequestration of CO(2) (suspension-CO(2)) using fluidized bed combustion (FBC) fly ashes from hard coal combustion. The analyzed fluidized bed combustion (FBC) fly ashes were characterized by a significant free CaO content (1.7–6.8%) and a high CO(2) binding potential ranging from 9.7 to 15.7%. In the case of fluidized bed combustion (FBC) fly ashes suspensions, the basic product of the carbonation process is calcium carbonate, which is clearly indicated by the results of the phase composition determination of solidified suspensions of fluidized bed combustion (FBC) fly ashes. The degree of carbonation, i.e. the degree of CO(2) binding, calculated on the basis of the calcium carbonate content, in the analyzed suspensions was up to 1.1%. Mineral carbonation also reduces the leachability of pollutants such as: Zn, Cu, Pb, Ni, As, Hg, Cd, Cr, Cl, and SO(4)(2-). The pH is also reduced from about 12 to about 9. Aqueous suspensions of fluidized bed combustion (FBC) fly ashes with introduced CO(2) can potentially be used in underground mining. These activities are in line with the concepts of Carbon Capture and Utilization and the idea of circular economy.
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spelling pubmed-72898732020-06-15 The potential of FBC fly ashes to reduce CO(2) emissions Uliasz-Bocheńczyk, Alicja Mokrzycki, Eugeniusz Sci Rep Article The production of electricity and heat in Poland is the reason why the commercial power industry is the largest emitter of CO(2). At the same time, significant amounts of solid by-products of combustion, which can be used to bind CO(2) by mineral carbonation, are generated during the production processes. The article presents the results of research on mineral sequestration of CO(2) (suspension-CO(2)) using fluidized bed combustion (FBC) fly ashes from hard coal combustion. The analyzed fluidized bed combustion (FBC) fly ashes were characterized by a significant free CaO content (1.7–6.8%) and a high CO(2) binding potential ranging from 9.7 to 15.7%. In the case of fluidized bed combustion (FBC) fly ashes suspensions, the basic product of the carbonation process is calcium carbonate, which is clearly indicated by the results of the phase composition determination of solidified suspensions of fluidized bed combustion (FBC) fly ashes. The degree of carbonation, i.e. the degree of CO(2) binding, calculated on the basis of the calcium carbonate content, in the analyzed suspensions was up to 1.1%. Mineral carbonation also reduces the leachability of pollutants such as: Zn, Cu, Pb, Ni, As, Hg, Cd, Cr, Cl, and SO(4)(2-). The pH is also reduced from about 12 to about 9. Aqueous suspensions of fluidized bed combustion (FBC) fly ashes with introduced CO(2) can potentially be used in underground mining. These activities are in line with the concepts of Carbon Capture and Utilization and the idea of circular economy. Nature Publishing Group UK 2020-06-11 /pmc/articles/PMC7289873/ /pubmed/32528018 http://dx.doi.org/10.1038/s41598-020-66297-y Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Uliasz-Bocheńczyk, Alicja
Mokrzycki, Eugeniusz
The potential of FBC fly ashes to reduce CO(2) emissions
title The potential of FBC fly ashes to reduce CO(2) emissions
title_full The potential of FBC fly ashes to reduce CO(2) emissions
title_fullStr The potential of FBC fly ashes to reduce CO(2) emissions
title_full_unstemmed The potential of FBC fly ashes to reduce CO(2) emissions
title_short The potential of FBC fly ashes to reduce CO(2) emissions
title_sort potential of fbc fly ashes to reduce co(2) emissions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7289873/
https://www.ncbi.nlm.nih.gov/pubmed/32528018
http://dx.doi.org/10.1038/s41598-020-66297-y
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