Genesis of phase composition of zinc-aluminum spinel supported Pt-Sn catalysts for hydrocarbon dehydrogenation

Journal Article · Thu Oct 01 04:00:00 EDT 1981 · Kinet. Catal. (Engl. Transl.); (United States)

OSTI ID:6819901

Pakhomov, N A ^[1]; Buyanov, R A; Yurchenko, E N; Chernyshev, A P; Kotel'nikov, G R; Moroz, E M; Zaitseva, N A; Patanov, V A

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1. Siberian Branch of the Academy of Sciences of the USSR, Novosibirsk

A study has been made of the state of the supported components in Pt-Sn/ZnAl/sub 2/O/sub 4/ catalysts in different stages of preparing these catalysts and testing them for catalytic activity. It is shown that the state of the platinum and tin in air-dried specimens is determined by the composition of the impregnating solutions and by the nature of the platinum-tin complexes formed in the catalysts. In the calcined catalysts, no chemical interaction of the tin with the support or with the platinum is observed. It is established that the changes in the catalyst phase composition during service are cyclic. Pt-Sn alloys are formed in the dehydrogenation process, and these alloys break down during the oxidative regeneration of the catalyst.

• OSTI ID: 6819901
• Journal Information: Kinet. Catal. (Engl. Transl.); (United States), Journal Name: Kinet. Catal. (Engl. Transl.); (United States) Vol. 22:2; ISSN KICAA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALLOYS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CATALYTIC REFORMING
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CRYSTALS
ELEMENTS
HYDROCARBONS
LATTICE PARAMETERS
METALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
PLATINUM
PLATINUM ALLOYS
PLATINUM METAL ALLOYS
PLATINUM METALS
REDOX REACTIONS
REFORMER PROCESSES
SPECTRA
SYNTHESIS
TIN
TIN ALLOYS
TIN COMPOUNDS
TIN OXIDES
TRANSITION ELEMENTS
ZINC