Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Pt/SiO2 and Pt/HS-CeO2: An insight about the role of carbonyl interaction with supercritical CO2 or with ceria s...

Autores
Piqueras, Cristian Martin; Gutierrez, Victoria Soledad; Vega, Daniel Alberto; Volpe, María Alicia
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The catalytic hydrogenation of cinnamaldehyde employing H2 as the reductant was carried out under supercritical (sc) CO2, propane and other CO2 dense mixture, employing Pt supported on silica and high surface (HS) ceria. The phase behavior of the mixtures was found to be in good agreement with the predictions obtained from the MHV2 (modified Huron-Vidal second-order) model. In order to study the influence of scCO2 on the selectivity, the reaction was also conducted in dense propane and near-critical CO2–isopropanol mixtures. These results were compared with those corresponding to classical gas–liquid conditions with isopropanol as solvent and low H2 pressure. In scCO2, the selectivity to cinnamyl alcohol over Pt/SiO2 was 91%, quite higher than under classical conditions (38%). Such an enhancement is originated by the interaction of the Cdouble bond; length as m-dashO with scCO2. For Pt/HS-CeO2 the selectivity under supercritical conditions was slightly lower (80%) than the one corresponding to Pt/SiO2 but quite higher than the one corresponding to gas–liquid conditions (54%). The interaction of the carbonyl group with ceria support predominates in this case, thus, the beneficial effect of scCO2 is not observed in the same magnitude as in the case of Pt/SiO2. A catalytic scenario is drawn for each catalyst in order to explain the different selectivity patterns.
Fil: Piqueras, Cristian Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Planta Piloto de Ingeniería Química (i); Argentina
Fil: Gutierrez, Victoria Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Planta Piloto de Ingeniería Química (i); Argentina
Fil: Vega, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Instituto de Física del Sur; Argentina
Fil: Volpe, María Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Planta Piloto de Ingeniería Química (i); Argentina
Materia
CERIA
CINNAMALDEHYDE
SELECTIVE HYDROGENATION
SUPERCRITICAL CARBON DIOXIDE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/2054
Acceder
id CONICETDig_4a4f1f0329e0604d97a638a8f68e8e60
oai_identifier_str oai:ri.conicet.gov.ar:11336/2054
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Pt/SiO2 and Pt/HS-CeO2: An insight about the role of carbonyl interaction with supercritical CO2 or with ceria support sites in cinamyl alcohol selectivityPiqueras, Cristian MartinGutierrez, Victoria SoledadVega, Daniel AlbertoVolpe, María AliciaCERIACINNAMALDEHYDESELECTIVE HYDROGENATIONSUPERCRITICAL CARBON DIOXIDEhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The catalytic hydrogenation of cinnamaldehyde employing H2 as the reductant was carried out under supercritical (sc) CO2, propane and other CO2 dense mixture, employing Pt supported on silica and high surface (HS) ceria. The phase behavior of the mixtures was found to be in good agreement with the predictions obtained from the MHV2 (modified Huron-Vidal second-order) model. In order to study the influence of scCO2 on the selectivity, the reaction was also conducted in dense propane and near-critical CO2–isopropanol mixtures. These results were compared with those corresponding to classical gas–liquid conditions with isopropanol as solvent and low H2 pressure. In scCO2, the selectivity to cinnamyl alcohol over Pt/SiO2 was 91%, quite higher than under classical conditions (38%). Such an enhancement is originated by the interaction of the Cdouble bond; length as m-dashO with scCO2. For Pt/HS-CeO2 the selectivity under supercritical conditions was slightly lower (80%) than the one corresponding to Pt/SiO2 but quite higher than the one corresponding to gas–liquid conditions (54%). The interaction of the carbonyl group with ceria support predominates in this case, thus, the beneficial effect of scCO2 is not observed in the same magnitude as in the case of Pt/SiO2. A catalytic scenario is drawn for each catalyst in order to explain the different selectivity patterns.Fil: Piqueras, Cristian Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Planta Piloto de Ingeniería Química (i); ArgentinaFil: Gutierrez, Victoria Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Planta Piloto de Ingeniería Química (i); ArgentinaFil: Vega, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Instituto de Física del Sur; ArgentinaFil: Volpe, María Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Planta Piloto de Ingeniería Química (i); ArgentinaElsevier Science2013-10-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/2054Piqueras, Cristian Martin; Gutierrez, Victoria Soledad; Vega, Daniel Alberto; Volpe, María Alicia; Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Pt/SiO2 and Pt/HS-CeO2: An insight about the role of carbonyl interaction with supercritical CO2 or with ceria support sites in cinamyl alcohol selectivity; Elsevier Science; Applied Catalysis A: General; 467; 2-10-2013; 253-2600926-860Xenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2013.07.028info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926860X13004262info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:06:06Zoai:ri.conicet.gov.ar:11336/2054instacron: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:34982025-09-03 10:06:07.041CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Pt/SiO2 and Pt/HS-CeO2: An insight about the role of carbonyl interaction with supercritical CO2 or with ceria support sites in cinamyl alcohol selectivity
title Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Pt/SiO2 and Pt/HS-CeO2: An insight about the role of carbonyl interaction with supercritical CO2 or with ceria support sites in cinamyl alcohol selectivity
spellingShingle Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Pt/SiO2 and Pt/HS-CeO2: An insight about the role of carbonyl interaction with supercritical CO2 or with ceria support sites in cinamyl alcohol selectivity
Piqueras, Cristian Martin
CERIA
CINNAMALDEHYDE
SELECTIVE HYDROGENATION
SUPERCRITICAL CARBON DIOXIDE
title_short Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Pt/SiO2 and Pt/HS-CeO2: An insight about the role of carbonyl interaction with supercritical CO2 or with ceria support sites in cinamyl alcohol selectivity
title_full Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Pt/SiO2 and Pt/HS-CeO2: An insight about the role of carbonyl interaction with supercritical CO2 or with ceria support sites in cinamyl alcohol selectivity
title_fullStr Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Pt/SiO2 and Pt/HS-CeO2: An insight about the role of carbonyl interaction with supercritical CO2 or with ceria support sites in cinamyl alcohol selectivity
title_full_unstemmed Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Pt/SiO2 and Pt/HS-CeO2: An insight about the role of carbonyl interaction with supercritical CO2 or with ceria support sites in cinamyl alcohol selectivity
title_sort Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Pt/SiO2 and Pt/HS-CeO2: An insight about the role of carbonyl interaction with supercritical CO2 or with ceria support sites in cinamyl alcohol selectivity
dc.creator.none.fl_str_mv Piqueras, Cristian Martin
Gutierrez, Victoria Soledad
Vega, Daniel Alberto
Volpe, María Alicia
author Piqueras, Cristian Martin
author_facet Piqueras, Cristian Martin
Gutierrez, Victoria Soledad
Vega, Daniel Alberto
Volpe, María Alicia
author_role author
author2 Gutierrez, Victoria Soledad
Vega, Daniel Alberto
Volpe, María Alicia
author2_role author
author
author
dc.subject.none.fl_str_mv CERIA
CINNAMALDEHYDE
SELECTIVE HYDROGENATION
SUPERCRITICAL CARBON DIOXIDE
topic CERIA
CINNAMALDEHYDE
SELECTIVE HYDROGENATION
SUPERCRITICAL CARBON DIOXIDE
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 catalytic hydrogenation of cinnamaldehyde employing H2 as the reductant was carried out under supercritical (sc) CO2, propane and other CO2 dense mixture, employing Pt supported on silica and high surface (HS) ceria. The phase behavior of the mixtures was found to be in good agreement with the predictions obtained from the MHV2 (modified Huron-Vidal second-order) model. In order to study the influence of scCO2 on the selectivity, the reaction was also conducted in dense propane and near-critical CO2–isopropanol mixtures. These results were compared with those corresponding to classical gas–liquid conditions with isopropanol as solvent and low H2 pressure. In scCO2, the selectivity to cinnamyl alcohol over Pt/SiO2 was 91%, quite higher than under classical conditions (38%). Such an enhancement is originated by the interaction of the Cdouble bond; length as m-dashO with scCO2. For Pt/HS-CeO2 the selectivity under supercritical conditions was slightly lower (80%) than the one corresponding to Pt/SiO2 but quite higher than the one corresponding to gas–liquid conditions (54%). The interaction of the carbonyl group with ceria support predominates in this case, thus, the beneficial effect of scCO2 is not observed in the same magnitude as in the case of Pt/SiO2. A catalytic scenario is drawn for each catalyst in order to explain the different selectivity patterns.
Fil: Piqueras, Cristian Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Planta Piloto de Ingeniería Química (i); Argentina
Fil: Gutierrez, Victoria Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Planta Piloto de Ingeniería Química (i); Argentina
Fil: Vega, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Instituto de Física del Sur; Argentina
Fil: Volpe, María Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Planta Piloto de Ingeniería Química (i); Argentina
description The catalytic hydrogenation of cinnamaldehyde employing H2 as the reductant was carried out under supercritical (sc) CO2, propane and other CO2 dense mixture, employing Pt supported on silica and high surface (HS) ceria. The phase behavior of the mixtures was found to be in good agreement with the predictions obtained from the MHV2 (modified Huron-Vidal second-order) model. In order to study the influence of scCO2 on the selectivity, the reaction was also conducted in dense propane and near-critical CO2–isopropanol mixtures. These results were compared with those corresponding to classical gas–liquid conditions with isopropanol as solvent and low H2 pressure. In scCO2, the selectivity to cinnamyl alcohol over Pt/SiO2 was 91%, quite higher than under classical conditions (38%). Such an enhancement is originated by the interaction of the Cdouble bond; length as m-dashO with scCO2. For Pt/HS-CeO2 the selectivity under supercritical conditions was slightly lower (80%) than the one corresponding to Pt/SiO2 but quite higher than the one corresponding to gas–liquid conditions (54%). The interaction of the carbonyl group with ceria support predominates in this case, thus, the beneficial effect of scCO2 is not observed in the same magnitude as in the case of Pt/SiO2. A catalytic scenario is drawn for each catalyst in order to explain the different selectivity patterns.
publishDate 2013
dc.date.none.fl_str_mv 2013-10-02
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/11336/2054
Piqueras, Cristian Martin; Gutierrez, Victoria Soledad; Vega, Daniel Alberto; Volpe, María Alicia; Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Pt/SiO2 and Pt/HS-CeO2: An insight about the role of carbonyl interaction with supercritical CO2 or with ceria support sites in cinamyl alcohol selectivity; Elsevier Science; Applied Catalysis A: General; 467; 2-10-2013; 253-260
0926-860X
url http://hdl.handle.net/11336/2054
identifier_str_mv Piqueras, Cristian Martin; Gutierrez, Victoria Soledad; Vega, Daniel Alberto; Volpe, María Alicia; Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Pt/SiO2 and Pt/HS-CeO2: An insight about the role of carbonyl interaction with supercritical CO2 or with ceria support sites in cinamyl alcohol selectivity; Elsevier Science; Applied Catalysis A: General; 467; 2-10-2013; 253-260
0926-860X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2013.07.028
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926860X13004262
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/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_ 1842269942591782912
score 13.13397

Publicaciones similares