A candidate material for mercury control in energy production processes: Carbon foams loaded with gold

Tighter control of pollutant emissions in energy generation from coal combustion is essential for the maintenance of coal as a member of the energy panel in coming years. Coal-fired power plants are the primary source of mercury emission in Europe and the second in the world. This study focuses on t...

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Autores: Antuña-Nieto, Cristina, Rodríguez Vázquez, Elena, López Antón, María Antonia, García Fernández, Roberto, Martínez Tarazona, María Rosa
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:10261/170937
Acceso en línea:http://hdl.handle.net/10261/170937
Access Level:acceso abierto
Palabra clave:Mercury
Combustion
Energy generation
Regenerable sorbent
Gold
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spelling A candidate material for mercury control in energy production processes: Carbon foams loaded with goldAntuña-Nieto, CristinaRodríguez Vázquez, ElenaLópez Antón, María AntoniaGarcía Fernández, RobertoMartínez Tarazona, María RosaMercuryCombustionEnergy generationRegenerable sorbentGoldTighter control of pollutant emissions in energy generation from coal combustion is essential for the maintenance of coal as a member of the energy panel in coming years. Coal-fired power plants are the primary source of mercury emission in Europe and the second in the world. This study focuses on the development of regenerable sorbents to mercury capture avoiding the generation of new toxic wastes. The sorbents based on carbon foams impregnated with gold have been optimized to achieve the maximum mercury retention efficiency using the minimum amount of gold. Moreover, the sorbent has been designed to facilitate the recovery of the gold once the sorbent has been exhausted. Although this technology requires a higher initial investment than other alternatives, such as the injection of activated carbons, the apparent high cost of the sorbent is offset by the possibility of using the same material over several cycles. A mercury retention mechanism is proposed based on mercury amalgamation and mercury oxidation/adsorption through the double function of gold and support. The results confirm that the reactions between the mercury and gold depend on the size of the gold nanoparticles and the presence of oxygenated groups on the surface of the carbon support.The authors acknowledge financial support, through research projects CTQ2014-58110-R and GRUPIN14-031.Peer reviewedElsevierMinisterio de Economía y Competitividad (España)Principado de AsturiasRodríguez Vázquez, Elena [0000-0001-6835-0371]López Antón, María Antonia [0000-0001-9330-5775]Martínez Tarazona, María Rosa [0000-0002-7331-3134]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/10261/170937reponame: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/CTQ2014-58110-Rhttps://doi.org/10.1016/j.energy.2018.06.172Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1709372026-05-22T06:33:51Z
dc.title.none.fl_str_mv A candidate material for mercury control in energy production processes: Carbon foams loaded with gold
title A candidate material for mercury control in energy production processes: Carbon foams loaded with gold
spellingShingle A candidate material for mercury control in energy production processes: Carbon foams loaded with gold
Antuña-Nieto, Cristina
Mercury
Combustion
Energy generation
Regenerable sorbent
Gold
title_short A candidate material for mercury control in energy production processes: Carbon foams loaded with gold
title_full A candidate material for mercury control in energy production processes: Carbon foams loaded with gold
title_fullStr A candidate material for mercury control in energy production processes: Carbon foams loaded with gold
title_full_unstemmed A candidate material for mercury control in energy production processes: Carbon foams loaded with gold
title_sort A candidate material for mercury control in energy production processes: Carbon foams loaded with gold
dc.creator.none.fl_str_mv Antuña-Nieto, Cristina
Rodríguez Vázquez, Elena
López Antón, María Antonia
García Fernández, Roberto
Martínez Tarazona, María Rosa
author Antuña-Nieto, Cristina
author_facet Antuña-Nieto, Cristina
Rodríguez Vázquez, Elena
López Antón, María Antonia
García Fernández, Roberto
Martínez Tarazona, María Rosa
author_role author
author2 Rodríguez Vázquez, Elena
López Antón, María Antonia
García Fernández, Roberto
Martínez Tarazona, María Rosa
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Principado de Asturias
Rodríguez Vázquez, Elena [0000-0001-6835-0371]
López Antón, María Antonia [0000-0001-9330-5775]
Martínez Tarazona, María Rosa [0000-0002-7331-3134]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Mercury
Combustion
Energy generation
Regenerable sorbent
Gold
topic Mercury
Combustion
Energy generation
Regenerable sorbent
Gold
description Tighter control of pollutant emissions in energy generation from coal combustion is essential for the maintenance of coal as a member of the energy panel in coming years. Coal-fired power plants are the primary source of mercury emission in Europe and the second in the world. This study focuses on the development of regenerable sorbents to mercury capture avoiding the generation of new toxic wastes. The sorbents based on carbon foams impregnated with gold have been optimized to achieve the maximum mercury retention efficiency using the minimum amount of gold. Moreover, the sorbent has been designed to facilitate the recovery of the gold once the sorbent has been exhausted. Although this technology requires a higher initial investment than other alternatives, such as the injection of activated carbons, the apparent high cost of the sorbent is offset by the possibility of using the same material over several cycles. A mercury retention mechanism is proposed based on mercury amalgamation and mercury oxidation/adsorption through the double function of gold and support. The results confirm that the reactions between the mercury and gold depend on the size of the gold nanoparticles and the presence of oxygenated groups on the surface of the carbon support.
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/10261/170937
url http://hdl.handle.net/10261/170937
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/CTQ2014-58110-R
https://doi.org/10.1016/j.energy.2018.06.172
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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