Influence of the oxidation step on the behaviour and the performances of an oxygen carrier in fixed bed reactor

Detalhes bibliográficos
Autor(a) principal: Blas,Lucia
Data de Publicação: 2014
Outros Autores: Dorge,Sophie, Zouaoui,Nabila, Lambert,Arnold, Dutournié,Patrick
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000100029
Resumo: Chemical Looping Combustion is a promising technology for clean power generation with integrated CO2 capture. In this process the oxygen required for combustion is provided by a metal oxide. This work deals with the development of an experimental procedure to study performances of an oxygen carrier during oxidation/reduction cycles and the influence of the oxidation step on its behaviour. Tests were performed in a laboratory fixed bed reactor, with NiO/NiAl2O4, a promising oxygen carrier, and CO as fuel. Two different protocols of oxidation were studied. Results reveal that the oxidation step conditions can change the performances of the oxygen carrier. A significant decrease in total reduction capacity was observed using the regeneration step at high temperature due to structural changes in particles. SEM analysis reveals that particle surface contains different crystallites according to this procedure. With the second procedure (oxidation in temperature ramp), nickel is partially agglomerated.
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spelling Influence of the oxidation step on the behaviour and the performances of an oxygen carrier in fixed bed reactorCLCoxygen carrierCO oxidationSEMnickel agglomerationChemical Looping Combustion is a promising technology for clean power generation with integrated CO2 capture. In this process the oxygen required for combustion is provided by a metal oxide. This work deals with the development of an experimental procedure to study performances of an oxygen carrier during oxidation/reduction cycles and the influence of the oxidation step on its behaviour. Tests were performed in a laboratory fixed bed reactor, with NiO/NiAl2O4, a promising oxygen carrier, and CO as fuel. Two different protocols of oxidation were studied. Results reveal that the oxidation step conditions can change the performances of the oxygen carrier. A significant decrease in total reduction capacity was observed using the regeneration step at high temperature due to structural changes in particles. SEM analysis reveals that particle surface contains different crystallites according to this procedure. With the second procedure (oxidation in temperature ramp), nickel is partially agglomerated.ABM, ABC, ABPol2014-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000100029Materials Research v.17 n.1 2014reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392013005000183info:eu-repo/semantics/openAccessBlas,LuciaDorge,SophieZouaoui,NabilaLambert,ArnoldDutournié,Patrickeng2014-03-13T00:00:00Zoai:scielo:S1516-14392014000100029Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2014-03-13T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Influence of the oxidation step on the behaviour and the performances of an oxygen carrier in fixed bed reactor
title Influence of the oxidation step on the behaviour and the performances of an oxygen carrier in fixed bed reactor
spellingShingle Influence of the oxidation step on the behaviour and the performances of an oxygen carrier in fixed bed reactor
Blas,Lucia
CLC
oxygen carrier
CO oxidation
SEM
nickel agglomeration
title_short Influence of the oxidation step on the behaviour and the performances of an oxygen carrier in fixed bed reactor
title_full Influence of the oxidation step on the behaviour and the performances of an oxygen carrier in fixed bed reactor
title_fullStr Influence of the oxidation step on the behaviour and the performances of an oxygen carrier in fixed bed reactor
title_full_unstemmed Influence of the oxidation step on the behaviour and the performances of an oxygen carrier in fixed bed reactor
title_sort Influence of the oxidation step on the behaviour and the performances of an oxygen carrier in fixed bed reactor
author Blas,Lucia
author_facet Blas,Lucia
Dorge,Sophie
Zouaoui,Nabila
Lambert,Arnold
Dutournié,Patrick
author_role author
author2 Dorge,Sophie
Zouaoui,Nabila
Lambert,Arnold
Dutournié,Patrick
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Blas,Lucia
Dorge,Sophie
Zouaoui,Nabila
Lambert,Arnold
Dutournié,Patrick
dc.subject.por.fl_str_mv CLC
oxygen carrier
CO oxidation
SEM
nickel agglomeration
topic CLC
oxygen carrier
CO oxidation
SEM
nickel agglomeration
description Chemical Looping Combustion is a promising technology for clean power generation with integrated CO2 capture. In this process the oxygen required for combustion is provided by a metal oxide. This work deals with the development of an experimental procedure to study performances of an oxygen carrier during oxidation/reduction cycles and the influence of the oxidation step on its behaviour. Tests were performed in a laboratory fixed bed reactor, with NiO/NiAl2O4, a promising oxygen carrier, and CO as fuel. Two different protocols of oxidation were studied. Results reveal that the oxidation step conditions can change the performances of the oxygen carrier. A significant decrease in total reduction capacity was observed using the regeneration step at high temperature due to structural changes in particles. SEM analysis reveals that particle surface contains different crystallites according to this procedure. With the second procedure (oxidation in temperature ramp), nickel is partially agglomerated.
publishDate 2014
dc.date.none.fl_str_mv 2014-02-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000100029
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000100029
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392013005000183
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.17 n.1 2014
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212663703896064

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