Influence of silica gel additions on the forming of active phases in aluminum-nickel-molybdenum catalysts
Journal Article
·
· Kinet. Catal. (Engl. Transl.); (United States)
OSTI ID:6307456
We investigated aluminum-nickel-molybdenum catalysts (ANMC) by thermogravimetric, electron paramagnetic resonance, x-ray photoelectron spectroscopic, and electron-spectroscopic diffusion reflectance methods. These hydropurification catalysts contained different concentrations of hydrogenation metals (Ni and Mo) and were either modified, or not, by silica gel (6% SiO/sub 2/). It was shown that with an increase in the concentration of Ni and Mo, the amount of nickel-molybdenum compounds in ANMC increased. The incorporation of SiO/sub 2/ into the composition of ANMC inhibited the interaction of Ni and Mo with the carrier and contributed to the formation of large amounts of nickel-molybdenum and aluminum-nickel-molybdenum surface associates, which are precursors of active hydropurification phases in ANMC.
- Research Organization:
- All-Union Research Investigation Institute of Petroleum Processing, Moscow (USSR)
- OSTI ID:
- 6307456
- Journal Information:
- Kinet. Catal. (Engl. Transl.); (United States), Journal Name: Kinet. Catal. (Engl. Transl.); (United States) Vol. 28:6; ISSN KICAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020400* -- Petroleum-- Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ACTIVATION ENERGY
ADSORBENTS
ALLOYS
ALUMINIUM ALLOYS
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL ACTIVATION
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
ELECTRON SPECTROSCOPY
ELECTRON SPIN RESONANCE
ENERGY
GRAVIMETRIC ANALYSIS
HETEROGENEOUS CATALYSIS
HYDROGENATION
MAGNETIC RESONANCE
MOLYBDENUM ALLOYS
NICKEL ALLOYS
PETROLEUM PRODUCTS
PHOTOELECTRON SPECTROSCOPY
QUANTITATIVE CHEMICAL ANALYSIS
RESONANCE
SILICA GEL
SPECTRA
SPECTROSCOPY
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
X-RAY SPECTRA
020400* -- Petroleum-- Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ACTIVATION ENERGY
ADSORBENTS
ALLOYS
ALUMINIUM ALLOYS
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL ACTIVATION
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
ELECTRON SPECTROSCOPY
ELECTRON SPIN RESONANCE
ENERGY
GRAVIMETRIC ANALYSIS
HETEROGENEOUS CATALYSIS
HYDROGENATION
MAGNETIC RESONANCE
MOLYBDENUM ALLOYS
NICKEL ALLOYS
PETROLEUM PRODUCTS
PHOTOELECTRON SPECTROSCOPY
QUANTITATIVE CHEMICAL ANALYSIS
RESONANCE
SILICA GEL
SPECTRA
SPECTROSCOPY
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
X-RAY SPECTRA