Carbon-enriched coal fly ash as a precursor of activated carbons for SO2 removal

Carbon-enriched coal fly ash was evaluated in this work as a low-cost adsorbent for SO2 removal from stack gases. The unburned carbon in coal fly ash was concentrated by mechanical sieving and vegetal oil agglomeration. The carbon concentrates were activated with steam at 900ºC in order to develop p...

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Detalles Bibliográficos
Autores: Izquierdo Pantoja, María Teresa, Rubio Villa, Begoña
Tipo de recurso: artículo
Fecha de publicación:2007
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/4211
Acceso en línea:http://hdl.handle.net/10261/4211
Access Level:acceso abierto
Palabra clave:Carbon-enriched coal fly ash
Vegetal oil agglomeration
Activated carbon
SO2 removal
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spelling Carbon-enriched coal fly ash as a precursor of activated carbons for SO2 removalIzquierdo Pantoja, María TeresaRubio Villa, BegoñaCarbon-enriched coal fly ashVegetal oil agglomerationActivated carbonSO2 removalCarbon-enriched coal fly ash was evaluated in this work as a low-cost adsorbent for SO2 removal from stack gases. The unburned carbon in coal fly ash was concentrated by mechanical sieving and vegetal oil agglomeration. The carbon concentrates were activated with steam at 900ºC in order to develop porosity onto the samples. The performance of these samples in the SO2 abatement was tested in the following conditions: 100ºC, 1000 ppmv SO2, 5% O2, 6% water vapor. A good SO2 removal capacity was shown by some of the studied samples that can be related to their textural properties. Cycles of SO2 adsorption/regeneration were carried out in order to evaluate the possibility of thermal regeneration and re-use of these carbons. Regeneration of the exhausted carbons was carried out at 400ºC of temperature and a flow of 25 ml/min of Ar. After each cycle, the SO2 removal capacity of the sample decreases.Ministerio de Educación y Ciencia, EU (FEDER) CTM2004-04252-C02Peer reviewedElsevierMinisterio de Educación y Ciencia (España)European Commission200820082007info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501676646 bytesapplication/pdfhttp://hdl.handle.net/10261/4211reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.jhazmat.2007.11.047info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/42112026-05-22T06:33:51Z
dc.title.none.fl_str_mv Carbon-enriched coal fly ash as a precursor of activated carbons for SO2 removal
title Carbon-enriched coal fly ash as a precursor of activated carbons for SO2 removal
spellingShingle Carbon-enriched coal fly ash as a precursor of activated carbons for SO2 removal
Izquierdo Pantoja, María Teresa
Carbon-enriched coal fly ash
Vegetal oil agglomeration
Activated carbon
SO2 removal
title_short Carbon-enriched coal fly ash as a precursor of activated carbons for SO2 removal
title_full Carbon-enriched coal fly ash as a precursor of activated carbons for SO2 removal
title_fullStr Carbon-enriched coal fly ash as a precursor of activated carbons for SO2 removal
title_full_unstemmed Carbon-enriched coal fly ash as a precursor of activated carbons for SO2 removal
title_sort Carbon-enriched coal fly ash as a precursor of activated carbons for SO2 removal
dc.creator.none.fl_str_mv Izquierdo Pantoja, María Teresa
Rubio Villa, Begoña
author Izquierdo Pantoja, María Teresa
author_facet Izquierdo Pantoja, María Teresa
Rubio Villa, Begoña
author_role author
author2 Rubio Villa, Begoña
author2_role author
dc.contributor.none.fl_str_mv Ministerio de Educación y Ciencia (España)
European Commission
dc.subject.none.fl_str_mv Carbon-enriched coal fly ash
Vegetal oil agglomeration
Activated carbon
SO2 removal
topic Carbon-enriched coal fly ash
Vegetal oil agglomeration
Activated carbon
SO2 removal
description Carbon-enriched coal fly ash was evaluated in this work as a low-cost adsorbent for SO2 removal from stack gases. The unburned carbon in coal fly ash was concentrated by mechanical sieving and vegetal oil agglomeration. The carbon concentrates were activated with steam at 900ºC in order to develop porosity onto the samples. The performance of these samples in the SO2 abatement was tested in the following conditions: 100ºC, 1000 ppmv SO2, 5% O2, 6% water vapor. A good SO2 removal capacity was shown by some of the studied samples that can be related to their textural properties. Cycles of SO2 adsorption/regeneration were carried out in order to evaluate the possibility of thermal regeneration and re-use of these carbons. Regeneration of the exhausted carbons was carried out at 400ºC of temperature and a flow of 25 ml/min of Ar. After each cycle, the SO2 removal capacity of the sample decreases.
publishDate 2007
dc.date.none.fl_str_mv 2007
2008
2008
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/4211
url http://hdl.handle.net/10261/4211
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.jhazmat.2007.11.047
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 676646 bytes
application/pdf
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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repository.mail.fl_str_mv
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