Boron effects in a zeolite-based hydrotreating catalyst
Journal Article
·
· J. Catal.; (United States)
A hydrotreating catalyst has been prepared by incorporating HY zeolite (50 wt%) into an Al/sub 2/O/sub 3/ matrix by a forming method involving peptizing agents, mix-mulling, and a high-temperature calcination step prior to metals loading with 14% Mo and 4% Ni. Electronic microprobe measurements indicate that boron (H/sub 3/BO/sub 3/) addition generates a catalyst with radial concentration gradients; its exterior is metal-rich in molybdenum and nickel. In contrast, if Al(NO/sub 3/)/sub 3/ is used as a peptizing agent, metals (Ni and Mo) are preferentially found in the catalyst interior. X-Ray photoelectron spectroscopy (XPS) indicates that nickel is present as a pseudo-spinel, while molybdenum is present predominantly as a supported oxide. Macroporosity as well as segregation of metals on the surface (induced by H/sub 3/BO/sub 3/ addition) is believed responsible for the boron-containing catalyst's improved hydrodenitrogenation activity in upgrading vacuum gas oil at mild hydrotreating conditions.
- Research Organization:
- Gulf Research and Development Co., Pittsburgh, PA (USA)
- OSTI ID:
- 5269283
- Journal Information:
- J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 97:2; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020400* -- Petroleum-- Processing
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BORON
CALCINATION
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
DECOMPOSITION
DENITRIFICATION
DESULFURIZATION
DISTRIBUTION
ELECTRON MICROPROBE ANALYSIS
ELECTRON SPECTROSCOPY
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GAS OILS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METALS
MICROANALYSIS
MICROSTRUCTURE
MINERALS
MOLYBDENUM
NICKEL
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PHOTOELECTRON SPECTROSCOPY
POROSITY
PROMOTERS
PYROLYSIS
SEMIMETALS
SPECTROSCOPY
SYNTHESIS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
X-RAY SPECTROSCOPY
ZEOLITES
020400* -- Petroleum-- Processing
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BORON
CALCINATION
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
DECOMPOSITION
DENITRIFICATION
DESULFURIZATION
DISTRIBUTION
ELECTRON MICROPROBE ANALYSIS
ELECTRON SPECTROSCOPY
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GAS OILS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METALS
MICROANALYSIS
MICROSTRUCTURE
MINERALS
MOLYBDENUM
NICKEL
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PHOTOELECTRON SPECTROSCOPY
POROSITY
PROMOTERS
PYROLYSIS
SEMIMETALS
SPECTROSCOPY
SYNTHESIS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
X-RAY SPECTROSCOPY
ZEOLITES