Selective reduction of NOx by propylene over silver catalyst under oxidative conditions
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000400018 |
Resumo: | In this study, a Ag/Al2O3 and Ag/Al2O3/Cordierite catalyst was prepared by a conventional impregnation method and NOx reduction investigated using propylene as a reducing agent. The catalysts were characterized by Temperature Programmed Reduction (TPR), oxygen chemisorption and surface area, using the standard BET method. The catalytic activities were measured under the same reaction conditions, i.e., 100 ppm NO, 250 ppm C3H6, 2% of oxygen and 100000 h-1 space velocity. The reaction products were analyzed by FTIR. The results of the catalytic activity obtained for the 2.22%Ag/Al2O3 catalyst showed 56% NO conversion at 723 K. The catalysts based on Cordierite presented an analogous behavior, but the temperature of maximum NO conversion was lower (620 K). |
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Selective reduction of NOx by propylene over silver catalyst under oxidative conditionsNOx reductionsilver/alumina catalystpropyleneCordieriteIn this study, a Ag/Al2O3 and Ag/Al2O3/Cordierite catalyst was prepared by a conventional impregnation method and NOx reduction investigated using propylene as a reducing agent. The catalysts were characterized by Temperature Programmed Reduction (TPR), oxygen chemisorption and surface area, using the standard BET method. The catalytic activities were measured under the same reaction conditions, i.e., 100 ppm NO, 250 ppm C3H6, 2% of oxygen and 100000 h-1 space velocity. The reaction products were analyzed by FTIR. The results of the catalytic activity obtained for the 2.22%Ag/Al2O3 catalyst showed 56% NO conversion at 723 K. The catalysts based on Cordierite presented an analogous behavior, but the temperature of maximum NO conversion was lower (620 K).Sociedade Brasileira de Química2004-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000400018Journal of the Brazilian Chemical Society v.15 n.4 2004reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532004000400018info:eu-repo/semantics/openAccessCónsul,Julia María D.Thiele,DanielBaibich,Ione M.Veses,Renato C.eng2004-09-16T00:00:00Zoai:scielo:S0103-50532004000400018Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2004-09-16T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Selective reduction of NOx by propylene over silver catalyst under oxidative conditions |
title |
Selective reduction of NOx by propylene over silver catalyst under oxidative conditions |
spellingShingle |
Selective reduction of NOx by propylene over silver catalyst under oxidative conditions Cónsul,Julia María D. NOx reduction silver/alumina catalyst propylene Cordierite |
title_short |
Selective reduction of NOx by propylene over silver catalyst under oxidative conditions |
title_full |
Selective reduction of NOx by propylene over silver catalyst under oxidative conditions |
title_fullStr |
Selective reduction of NOx by propylene over silver catalyst under oxidative conditions |
title_full_unstemmed |
Selective reduction of NOx by propylene over silver catalyst under oxidative conditions |
title_sort |
Selective reduction of NOx by propylene over silver catalyst under oxidative conditions |
author |
Cónsul,Julia María D. |
author_facet |
Cónsul,Julia María D. Thiele,Daniel Baibich,Ione M. Veses,Renato C. |
author_role |
author |
author2 |
Thiele,Daniel Baibich,Ione M. Veses,Renato C. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Cónsul,Julia María D. Thiele,Daniel Baibich,Ione M. Veses,Renato C. |
dc.subject.por.fl_str_mv |
NOx reduction silver/alumina catalyst propylene Cordierite |
topic |
NOx reduction silver/alumina catalyst propylene Cordierite |
description |
In this study, a Ag/Al2O3 and Ag/Al2O3/Cordierite catalyst was prepared by a conventional impregnation method and NOx reduction investigated using propylene as a reducing agent. The catalysts were characterized by Temperature Programmed Reduction (TPR), oxygen chemisorption and surface area, using the standard BET method. The catalytic activities were measured under the same reaction conditions, i.e., 100 ppm NO, 250 ppm C3H6, 2% of oxygen and 100000 h-1 space velocity. The reaction products were analyzed by FTIR. The results of the catalytic activity obtained for the 2.22%Ag/Al2O3 catalyst showed 56% NO conversion at 723 K. The catalysts based on Cordierite presented an analogous behavior, but the temperature of maximum NO conversion was lower (620 K). |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-08-01 |
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=S0103-50532004000400018 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000400018 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532004000400018 |
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 |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Journal of the Brazilian Chemical Society v.15 n.4 2004 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318165770895360 |