Deoxygenation of benzaldehyde over CsNaX zeolites

Autores
Peralta, María Ariela; Sooknoi, Tawan; Danuthai, Tanate; Resasco, Daniel E.
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The deoxygenation of benzaldehyde to benzene and toluene was investigated on basic CsNaX, and NaX zeolite catalysts. It was observed that as-prepared CsNaX, containing Cs in excess, displays high activity for direct decarbonylation of benzaldehyde to benzene. However, in parallel with the decarbonylation reaction, condensation of surface products occurs. Therefore, the lower pore volume of catalyst having excess Cs leads to lower catalyst stability. Decomposition of surface condensation products results in further evolution of benzene and toluene. It is observed that gas-phase H2 can play an important role by reducing the residence time of surface intermediates, thus decreasing the amount of condensation products that accumulate and lead to catalyst deactivation. Hydrogen transfer to the condensation surface products accelerates the decomposition of these condensation compounds primarily into toluene. NaX catalyst and washed CsNaX do not exhibit a high initial activity for direct decarbonylation, but rather operate via formation of surface condensation products which subsequently decompose yielding benzene and toluene. The residual acidity present in NaX catalysts causes a faster deactivation for this catalyst than for those containing Cs.
Fil: Peralta, María Ariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Sooknoi, Tawan. Oklahoma State University; Estados Unidos
Fil: Danuthai, Tanate. Oklahoma State University; Estados Unidos
Fil: Resasco, Daniel E.. Oklahoma State University; Estados Unidos
Materia
Deoxygenation
Csnax
Benzaldehyde
Biofuels
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/57053
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/57053
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Deoxygenation of benzaldehyde over CsNaX zeolitesPeralta, María ArielaSooknoi, TawanDanuthai, TanateResasco, Daniel E.DeoxygenationCsnaxBenzaldehydeBiofuelshttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The deoxygenation of benzaldehyde to benzene and toluene was investigated on basic CsNaX, and NaX zeolite catalysts. It was observed that as-prepared CsNaX, containing Cs in excess, displays high activity for direct decarbonylation of benzaldehyde to benzene. However, in parallel with the decarbonylation reaction, condensation of surface products occurs. Therefore, the lower pore volume of catalyst having excess Cs leads to lower catalyst stability. Decomposition of surface condensation products results in further evolution of benzene and toluene. It is observed that gas-phase H2 can play an important role by reducing the residence time of surface intermediates, thus decreasing the amount of condensation products that accumulate and lead to catalyst deactivation. Hydrogen transfer to the condensation surface products accelerates the decomposition of these condensation compounds primarily into toluene. NaX catalyst and washed CsNaX do not exhibit a high initial activity for direct decarbonylation, but rather operate via formation of surface condensation products which subsequently decompose yielding benzene and toluene. The residual acidity present in NaX catalysts causes a faster deactivation for this catalyst than for those containing Cs.Fil: Peralta, María Ariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Sooknoi, Tawan. Oklahoma State University; Estados UnidosFil: Danuthai, Tanate. Oklahoma State University; Estados UnidosFil: Resasco, Daniel E.. Oklahoma State University; Estados UnidosElsevier Science2009-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/57053Peralta, María Ariela; Sooknoi, Tawan; Danuthai, Tanate; Resasco, Daniel E.; Deoxygenation of benzaldehyde over CsNaX zeolites; Elsevier Science; Journal of Molecular Catalysis A: Chemical; 312; 1-2; 10-2009; 78-861381-1169CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.molcata.2009.07.008info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:57:22Zoai:ri.conicet.gov.ar:11336/57053instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:57:23.025CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Deoxygenation of benzaldehyde over CsNaX zeolites
title Deoxygenation of benzaldehyde over CsNaX zeolites
spellingShingle Deoxygenation of benzaldehyde over CsNaX zeolites
Peralta, María Ariela
Deoxygenation
Csnax
Benzaldehyde
Biofuels
title_short Deoxygenation of benzaldehyde over CsNaX zeolites
title_full Deoxygenation of benzaldehyde over CsNaX zeolites
title_fullStr Deoxygenation of benzaldehyde over CsNaX zeolites
title_full_unstemmed Deoxygenation of benzaldehyde over CsNaX zeolites
title_sort Deoxygenation of benzaldehyde over CsNaX zeolites
dc.creator.none.fl_str_mv Peralta, María Ariela
Sooknoi, Tawan
Danuthai, Tanate
Resasco, Daniel E.
author Peralta, María Ariela
author_facet Peralta, María Ariela
Sooknoi, Tawan
Danuthai, Tanate
Resasco, Daniel E.
author_role author
author2 Sooknoi, Tawan
Danuthai, Tanate
Resasco, Daniel E.
author2_role author
author
author
dc.subject.none.fl_str_mv Deoxygenation
Csnax
Benzaldehyde
Biofuels
topic Deoxygenation
Csnax
Benzaldehyde
Biofuels
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The deoxygenation of benzaldehyde to benzene and toluene was investigated on basic CsNaX, and NaX zeolite catalysts. It was observed that as-prepared CsNaX, containing Cs in excess, displays high activity for direct decarbonylation of benzaldehyde to benzene. However, in parallel with the decarbonylation reaction, condensation of surface products occurs. Therefore, the lower pore volume of catalyst having excess Cs leads to lower catalyst stability. Decomposition of surface condensation products results in further evolution of benzene and toluene. It is observed that gas-phase H2 can play an important role by reducing the residence time of surface intermediates, thus decreasing the amount of condensation products that accumulate and lead to catalyst deactivation. Hydrogen transfer to the condensation surface products accelerates the decomposition of these condensation compounds primarily into toluene. NaX catalyst and washed CsNaX do not exhibit a high initial activity for direct decarbonylation, but rather operate via formation of surface condensation products which subsequently decompose yielding benzene and toluene. The residual acidity present in NaX catalysts causes a faster deactivation for this catalyst than for those containing Cs.
Fil: Peralta, María Ariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Sooknoi, Tawan. Oklahoma State University; Estados Unidos
Fil: Danuthai, Tanate. Oklahoma State University; Estados Unidos
Fil: Resasco, Daniel E.. Oklahoma State University; Estados Unidos
description The deoxygenation of benzaldehyde to benzene and toluene was investigated on basic CsNaX, and NaX zeolite catalysts. It was observed that as-prepared CsNaX, containing Cs in excess, displays high activity for direct decarbonylation of benzaldehyde to benzene. However, in parallel with the decarbonylation reaction, condensation of surface products occurs. Therefore, the lower pore volume of catalyst having excess Cs leads to lower catalyst stability. Decomposition of surface condensation products results in further evolution of benzene and toluene. It is observed that gas-phase H2 can play an important role by reducing the residence time of surface intermediates, thus decreasing the amount of condensation products that accumulate and lead to catalyst deactivation. Hydrogen transfer to the condensation surface products accelerates the decomposition of these condensation compounds primarily into toluene. NaX catalyst and washed CsNaX do not exhibit a high initial activity for direct decarbonylation, but rather operate via formation of surface condensation products which subsequently decompose yielding benzene and toluene. The residual acidity present in NaX catalysts causes a faster deactivation for this catalyst than for those containing Cs.
publishDate 2009
dc.date.none.fl_str_mv 2009-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/57053
Peralta, María Ariela; Sooknoi, Tawan; Danuthai, Tanate; Resasco, Daniel E.; Deoxygenation of benzaldehyde over CsNaX zeolites; Elsevier Science; Journal of Molecular Catalysis A: Chemical; 312; 1-2; 10-2009; 78-86
1381-1169
CONICET Digital
CONICET
url http://hdl.handle.net/11336/57053
identifier_str_mv Peralta, María Ariela; Sooknoi, Tawan; Danuthai, Tanate; Resasco, Daniel E.; Deoxygenation of benzaldehyde over CsNaX zeolites; Elsevier Science; Journal of Molecular Catalysis A: Chemical; 312; 1-2; 10-2009; 78-86
1381-1169
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.molcata.2009.07.008
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846083112480538624
score 13.22299

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