New PtSn structured catalysts with ZnAl2O4 thin film for n-butane dehydrogenation reaction
Autor: | Sonia Alejandra Bocanegra, Sergio R. de Miguel, Adriana Daniela Ballarini |
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Rok vydání: | 2020 |
Předmět: |
ZNAL2O4STRUCTURED SUPPORT
INGENIERÍAS Y TECNOLOGÍAS engineering.material 010402 general chemistry 01 natural sciences Catalysis THIN FILMS COATING Metal chemistry.chemical_compound BUTENES PRODUCTION Coating Dehydrogenation Thin film Bimetallic strip Ingeniería de Procesos Químicos 010405 organic chemistry Process Chemistry and Technology Butane 0104 chemical sciences Ingeniería Química chemistry Chemical engineering visual_art engineering visual_art.visual_art_medium PTSN CATALYSTS Dispersion (chemistry) |
Zdroj: | Applied Catalysis A: General. 590:117315 |
ISSN: | 0926-860X |
DOI: | 10.1016/j.apcata.2019.117315 |
Popis: | Starting from structured supports based on compact spheres coated with a thin and porous layer of ZnAl2O4, mono and bimetallic catalysts were prepared. These catalysts were applied for the n-butane dehydrogenation reaction to produce light olefins. The structured supports were synthesized by coating with: bohemite-nitrate purified method (BP) and citrate-nitrate method (C). From the characterization results, the existence of strong Pt-Sn interaction in both bimetallic catalysts with probable alloys formation was found. In the PtSn/Sp-Zn-C catalyst, where higher metallic Pt-Sn interactions were observed, most of its metallic particles have sizes between 1 and 1.5 nm, which indicates a good metallic dispersion. These properties led to a catalyst with the best catalytic behavior, thus showing high yields to butenes, and a very good stability. Moreover, the presence of a structured support improves the mass and heat transference in this reaction carried out at high temperature. Fil: de Miguel, Sergio Ruben. 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: Ballarini, Adriana Daniela. 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: Bocanegra, Sonia Alejandra. 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 |
Databáze: | OpenAIRE |
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