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dc.contributor.author
Pieck, Carlos Luis
dc.contributor.author
Vera, Carlos Roman
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Parera, Jose
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Giménez, Gustavo N.
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Serra, Luciano R.
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Carvalho, Luciene S.
dc.contributor.author
Rangel, Maria C.
dc.date.available
2019-04-10T14:52:48Z
dc.date.issued
2005-10
dc.identifier.citation
Pieck, Carlos Luis; Vera, Carlos Roman; Parera, Jose; Giménez, Gustavo N.; Serra, Luciano R.; et al.; Metal dispersion and catalytic activity of trimetallic Pt-Re-Sn/Al 2O3 naphtha reforming catalysts; Elsevier Science; Catalysis Today; 107-108; 10-2005; 637-642
dc.identifier.issn
0920-5861
dc.identifier.uri
http://hdl.handle.net/11336/73942
dc.description.abstract
The chemisorption of CO over mono-, bi- and trimetallic naphtha reforming catalysts containing Pt, Re and Sn in the metallic function was studied. The temperature-programmed reduction (TPR) results show that there are important interactions among the metals. The CO chemisorption experiments were performed in a pulse equipment. Pulses of the adsorbate (CO) were successively injected to the system until saturation and the exposed Pt was determined from the amount of adsorbate irreversibly adsorbed. The exposed or accessible Pt obtained was compared with that one determined by the classical static method and it was also correlated with the results of catalytic activity of the metal function (cyclohexane dehydrogenation at 400 °C, 0.1 MPa, H2/CH = 30). The CO chemisorption results indicate that it is possible to determine in an easy way the metallic dispersion of Pt/Al2O3 monometallic catalysts and that the same method can be applied to measure the exposed Pt on bimetallic Pt-Re and Pt-Sn catalysts and trimetallic Pt-Re-Sn catalysts. The values obtained from CO adsorption have very good repeatability and are proportional to the dehydrogenating activity of the catalyst. The latter correlation has a few outliners which were attributed to the electronic effects exerted by Sn and Re over Pt that modify differently the metal activity and the capacity to chemisorb CO.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Dispersion
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Naphtha Reforming
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Pt-Re-Sn
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Trimetallic Catalysts
dc.subject.classification
Ingeniería Medioambiental y Geológica, Geotécnicas
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Ingeniería del Medio Ambiente
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Metal dispersion and catalytic activity of trimetallic Pt-Re-Sn/Al 2O3 naphtha reforming catalysts
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-04-01T16:12:31Z
dc.journal.volume
107-108
dc.journal.pagination
637-642
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Pieck, Carlos Luis. 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
dc.description.fil
Fil: Vera, Carlos Roman. 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
dc.description.fil
Fil: Parera, Jose. 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
dc.description.fil
Fil: Giménez, Gustavo N.. 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
dc.description.fil
Fil: Serra, Luciano R.. 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
dc.description.fil
Fil: Carvalho, Luciene S.. Universidade Federal da Bahia; Brasil
dc.description.fil
Fil: Rangel, Maria C.. Universidade Federal da Bahia; Brasil
dc.journal.title
Catalysis Today
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.cattod.2005.07.040
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0920586105004463
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