Dehydrogenation of propane combined with selective hydrogen combustion over Pt-Sn bimetallic catalysts

• Published in: Applied catalysis. A, General Vol. 356; no. 1; pp. 80 - 87
• Main Authors: Kaneko, Shinji, Arakawa, Tsuyoshi, Ohshima, Masa-aki, Kurokawa, Hideki, Miura, Hiroshi
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 01.03.2009; Elsevier
• Subjects: Catalysis; Chemistry; Dehydrogenation of propane; Exact sciences and technology; General and physical chemistry; Pt-Sn bimetallic catalysts; Selective hydrogen combustion; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Zn-Al-O support; Zn-Al-O support; Dehydrogenation of propane; Pt-Sn bimetallic catalysts; Selective hydrogen combustion; Mixed catalyst; Binary compound; Composition; Catalytic reaction; Support; Hydrogen; Transition metal; Combustion; Selectivity; Conversion; Equilibrium; Supported catalyst; Optimization; Heterogeneous catalysis; Propene; Dehydrogenation; Platinum; Alumina; Propane
• ISSN: 0926-860X; 1873-3875
• DOI: 10.1016/j.apcata.2008.12.022

Dehydrogenation of propane combined with selective hydrogen combustion was studied over supported Pt-Sn bimetallic catalysts. A catalytic test for normal dehydrogenation was also carried out as part of the proposed process. Pt/Al 2O 3 modified with Sn and Zn was found to be suitable for both of these two reactions. In the normal dehydrogenation, conversions equal to the calculated equilibrium conversion were achieved with almost complete selectivity for propylene. Optimization of catalyst composition was done by addition of various amounts of Sn to Pt/Al 2O 3 and Pt/Zn-Al-O. For dehydrogenation combined with hydrogen combustion, selective hydrogen combustion was achieved over Pt-Sn bimetallic catalysts. Moreover, a stable conversion higher than that of equilibrium for normal dehydrogenation was obtained using Pt-Sn/Zn-Al-O under certain reaction conditions. Dehydrogenation of propane combined with selective hydrogen combustion was studied over supported Pt-Sn bimetallic catalysts. A catalytic test for normal dehydrogenation was also carried out as part of the proposed process. Pt/Al 2O 3 modified with Sn and Zn was found to be suitable for both of these two reactions. In the normal dehydrogenation, conversions equal to the calculated equilibrium conversion were achieved with almost complete selectivity for propylene. Optimization of catalyst composition was done by addition of various amounts of Sn to Pt/Al 2O 3 and Pt/Zn-Al-O. For dehydrogenation combined with hydrogen combustion, selective hydrogen combustion was achieved over Pt-Sn bimetallic catalysts. Moreover, a stable conversion higher than that of equilibrium for normal dehydrogenation was obtained using Pt-Sn/Zn-Al-O under certain reaction conditions.