The use of ilmenite as oxygen-carrier in a 500Wth Chemical-Looping Coal Combustion unit

12 pages, 13 figures, 6 tables

Detalles Bibliográficos
Autores: Cuadrat, Ana, Abad Secades, Alberto, García Labiano, Francisco, Gayán Sanz, Pilar, Diego Poza, Luis F. de, Adánez Elorza, Juan
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/78668
Acceso en línea:http://hdl.handle.net/10261/78668
Access Level:acceso abierto
Palabra clave:Chemical looping combustion
Oxygen-carrier
Ilmenite
CO2 capture
Coal
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spelling The use of ilmenite as oxygen-carrier in a 500Wth Chemical-Looping Coal Combustion unitCuadrat, AnaAbad Secades, AlbertoGarcía Labiano, FranciscoGayán Sanz, PilarDiego Poza, Luis F. deAdánez Elorza, JuanChemical looping combustionOxygen-carrierIlmeniteCO2 captureCoal12 pages, 13 figures, 6 tablesChemical-Looping Combustion, CLC, is a promising technology to capture CO2 at low cost in fossil-fuelled power plants. In CLC the oxygen from air is transferred to the fuel by a solid oxygen-carrier that circulates between two interconnected fluidized-bed reactors: the fuel- and the air-reactor. This work studies the CLC technology in a 500Wth facility fuelled with bituminous coal with ilmenite as oxygen-carrier. The effect of temperature and coal particle size on coal conversion and combustion efficiency was assessed. Char gasification and combustion of both gasification products and volatile matter were evaluated. At higher temperatures, gasification and combustion reactions are promoted. Carbon capture and combustion efficiencies grow with the temperature, with faster increase at temperatures higher than 910°C. The outgoing unburnt gases come from volatile matter that was not fully oxidized by ilmenite. Little CH4 was measured and there were neither hydrocarbons heavier than CH4 nor tars in the fuel-reactor outlet. At 870°C the char conversion was 15% and reached 82% at 950°C. The combustion efficiency in the fuel-reactor increased from 70% at 870°C to 95% at 950°C. The results show that ilmenite has good behavior as oxygen-carrier and that optimizing CLC with coal can lead to energy production with high CO2 capture.This work was partially supported by the European Commission, under the RFCS program (ECLAIR Project, Contract RFCP-CT-2008-0008), from Alstom Power Boilers and by the Spanish Ministry of Science and Innovation (Project ENE2010-19550). A. Cuadrat thanks CSIC for the JAE Pre. fellowship. Alberto Abad thanks to the Ministerio de Ciencia e Innovación for the financial support in the course of the I3 Program.Peer ReviewedElsevier2013201320112013info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/78668reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.ijggc.2011.09.010info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/786682026-05-22T06:33:51Z
dc.title.none.fl_str_mv The use of ilmenite as oxygen-carrier in a 500Wth Chemical-Looping Coal Combustion unit
title The use of ilmenite as oxygen-carrier in a 500Wth Chemical-Looping Coal Combustion unit
spellingShingle The use of ilmenite as oxygen-carrier in a 500Wth Chemical-Looping Coal Combustion unit
Cuadrat, Ana
Chemical looping combustion
Oxygen-carrier
Ilmenite
CO2 capture
Coal
title_short The use of ilmenite as oxygen-carrier in a 500Wth Chemical-Looping Coal Combustion unit
title_full The use of ilmenite as oxygen-carrier in a 500Wth Chemical-Looping Coal Combustion unit
title_fullStr The use of ilmenite as oxygen-carrier in a 500Wth Chemical-Looping Coal Combustion unit
title_full_unstemmed The use of ilmenite as oxygen-carrier in a 500Wth Chemical-Looping Coal Combustion unit
title_sort The use of ilmenite as oxygen-carrier in a 500Wth Chemical-Looping Coal Combustion unit
dc.creator.none.fl_str_mv Cuadrat, Ana
Abad Secades, Alberto
García Labiano, Francisco
Gayán Sanz, Pilar
Diego Poza, Luis F. de
Adánez Elorza, Juan
author Cuadrat, Ana
author_facet Cuadrat, Ana
Abad Secades, Alberto
García Labiano, Francisco
Gayán Sanz, Pilar
Diego Poza, Luis F. de
Adánez Elorza, Juan
author_role author
author2 Abad Secades, Alberto
García Labiano, Francisco
Gayán Sanz, Pilar
Diego Poza, Luis F. de
Adánez Elorza, Juan
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Chemical looping combustion
Oxygen-carrier
Ilmenite
CO2 capture
Coal
topic Chemical looping combustion
Oxygen-carrier
Ilmenite
CO2 capture
Coal
description 12 pages, 13 figures, 6 tables
publishDate 2011
dc.date.none.fl_str_mv 2011
2013
2013
2013
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/10261/78668
url http://hdl.handle.net/10261/78668
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.ijggc.2011.09.010
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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score 15.812429

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