Aromatization of n-hexane by platinum-containing molecular sieves. 1. Catalyst preparation by the vapor phase impregnation method
- Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States)
A vapor phase impregnation method with Pt(acac){sub 2} has been developed and used to load Pt into aluminosilicate (KL, BaKL, NaY, CsNaY, cubic and hexagonal polytypes of faujasite, ZSM-12, and SSZ-24) and aluminophosphate (AlPO{sub 4}-5 and VPI-5) molecular sieves. Pt-containing molecular sieves are characterized by XRD,TPD, elemental analysis, {sup 13}C MAS NMR, TEM, and H{sub 2} chemisorption. {sup 13}C MAS NMR, TEM, and H{sub 2} chemisorption measurements reveal that Pt can be loaded into the micropores of molecular sieves with both charged and neutral frameworks. Pt impregnated into zeolites and aluminophosphates by this method does not migrate to the exterior surface of the molecular sieve catalysts at n-hexane aromatization reaction conditions of atmospheric pressure and temperatures between 460 and 510 C.
- OSTI ID:
- 6984498
- Journal Information:
- Journal of Catalysis; (United States), Journal Name: Journal of Catalysis; (United States) Vol. 134:1; ISSN 0021-9517; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
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020400* -- Petroleum-- Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ACETATES
ADSORBENTS
ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM PHOSPHATES
ALUMINIUM SILICATES
AROMATIZATION
CARBON 13
CARBON ISOTOPES
CARBOXYLIC ACID SALTS
CATALYSTS
CATALYTIC EFFECTS
CATALYTIC REFORMING
CHEMICAL ANALYSIS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CHEMISORPTION
COHERENT SCATTERING
CONTROL
CRYSTAL STRUCTURE
DESORPTION
DIFFRACTION
ELECTRON MICROSCOPY
ELEMENTS
EVEN-ODD NUCLEI
FAUJASITE
HEXANE
HYDROCARBONS
HYDROGEN
IMPREGNATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
MATERIALS
METALS
MICROSCOPY
MICROSTRUCTURE
MINERALS
MOLECULAR SIEVES
NONMETALS
NUCLEAR MAGNETIC RESONANCE
NUCLEI
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PLATINUM
PLATINUM COMPOUNDS
PLATINUM METALS
POROSITY
REFORMER PROCESSES
RESONANCE
SCATTERING
SEPARATION PROCESSES
SILICATE MINERALS
SILICATES
SILICON COMPOUNDS
SORPTION
STABLE ISOTOPES
SYNTHESIS
TEMPERATURE CONTROL
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TRANSMISSION ELECTRON MICROSCOPY
USES
X-RAY DIFFRACTION
ZEOLITES