Catalytic properties of superhigh-silica zeolites in some reactions of a carbonium ion type

Journal Article · Sat Sep 20 04:00:00 EDT 1986 · J. Appl. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6291005

Bursian, N R; Kogan, S B; Shavandin, Yu A; Aleksandrova, N V; Daragan, V K

In a study of the catalytic activity of superhigh-silica zeolites (TsVM, TsVK, ZSM, silicalite) and mordenites in reactions of disproportionation (polymolecular hydrocracking) and isomerization of n-paraffins and toluene disproportionation it was found that the dependence of the zeolite activity on the silicate ratio of synthesis is of an extremal nature. The optimum ratio in the investigated reactions differs widely. An explanation of the effect has been offered on the basis of the difference in the chemical mechanism of formation of carbonium ions as a function of the nature of the starting hydrocarbon and of the presence of a hydrating component.

• Research Organization: Leningrad Scientific-Industrial Association Lenneftekhim, USSR
• OSTI ID: 6291005
• Journal Information: J. Appl. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Appl. Chem. USSR (Engl. Transl.); (United States) Vol. 59:4; ISSN JAPUA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACTIVATION ENERGY
ALKANES
ALKYLATED AROMATICS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
CARBON COMPOUNDS
CARBONIUM COMPOUNDS
CATALYSIS
CATALYSTS
CATALYTIC CRACKING
CATALYTIC EFFECTS
CATIONS
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ELEMENTS
ENERGY
HETEROGENEOUS CATALYSIS
HEXANE
HYDROCARBONS
HYDROCRACKING
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IONS
ISOMERIZATION
MATERIALS
MATERIALS TESTING
METALS
MINERALS
MORDENITE
ORGANIC COMPOUNDS
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PENTANE
PLATINUM
PLATINUM METALS
PYROLYSIS
QUANTITY RATIO
REDUCTION
SILICA
SILICATE MINERALS
SILICON COMPOUNDS
SILICON OXIDES
TESTING
THERMOCHEMICAL PROCESSES
TOLUENE
TRANSITION ELEMENTS
ZEOLITES