Bimetallic catalysts supported on novel spherical MgAl2O4-coated supports for dehydrogenation processes
| Autor: | S.R. de Miguel, Patricia Daniela Zgolicz, Sonia A. Bocanegra, Irene María Julieta Vilella |
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| Rok vydání: | 2018 |
| Předmět: |
INGENIERÍAS Y TECNOLOGÍAS
02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences Catalysis Metal Coating Specific surface area Dehydrogenation STRUCTURED SPHERICAL CATALYSTS Bimetallic strip Chemistry Process Chemistry and Technology 021001 nanoscience & nanotechnology 0104 chemical sciences Ingeniería Química BIMETALLIC CATALYSTS Chemical engineering visual_art BUTENES Otras Ingeniería Química visual_art.visual_art_medium engineering 0210 nano-technology Selectivity DEHYDROGENATION Layer (electronics) |
| Zdroj: | Applied Catalysis A: General. 567:36-44 |
| ISSN: | 0926-860X |
| DOI: | 10.1016/j.apcata.2018.09.005 |
| Popis: | Novel Pt and PtSn catalysts were developed from structured supports of α-Al2O3 spheres coated with MgAl2O4 by two methods: advanced Bohemite-nitrate with purification (BNAP) and citrate-nitrate with two layers (CN2). Both structured supports showed a thin porous layer of MgAl2O4 with a high specific surface area of around 130 m2 g−1. A stable and uniform MgAl2O4 layer on the spherical nuclei was achieved by both synthesized coating methods. Therefore, a good interaction with the metals which leads to high metallic dispersions was obtained. These catalysts were used in the production of butenes by n-butane dehydrogenation reaction. The bimetallic catalysts showed both high values of n-butane conversion (25–30 %) and selectivity to butenes (89–95 %). The PtSn catalyst supported on spheres coated by CN2 method displayed high values of yield to butenes (about 30%), which are higher than those of a catalyst used in the industry. 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: Vilella, Irene María Julieta. 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: Zgolicz, Patricia 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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