A study of fluorided Ni-Mo/Al sub 2 O sub 3 catalysts in cumene conversion and thiophene HDS reactions
Journal Article
·
· Journal of Catalysis; (USA)
- Univ. of Calgary, Alberta (Canada)
The role of the various additives and their impregnation sequence in fluorided Ni-Mo/Al{sub 2}O{sub 3} catalysts in cumene cracking and hydrocracking and in thiophene HDS reactions has been investigated. The Broensted acidity imparted by coimpregnated fluoride, which greatly enhances the hydrocracking activity, has little or no effect in thiophene HDS. Conversely, the Ni-Mo phase which is important HDS is not crucial in hydrocracking. In hydrocracking a synergism between F{sup {minus}}/Al{sub 2}O{sub 3} and either metal additive is demonstrated. Comparison of these results for the Ni-containing catalysts with previous work on similar fluorided Co-Mo/Al{sub 2}O{sub 3} catalysts showed only minor differences, i.e., the Ni-containing catalysts showed a maximum in cumene conversion at less than the maximum wt% F{sup {minus}} studied and increased cumene conversion upon sulfiding. With regard to the importance of the impregnation sequence, it is found that simultaneous impregnation with all additives, including fluoride, produces a superior catalyst to that produced by stepwise impregnation.
- OSTI ID:
- 6842484
- Journal Information:
- Journal of Catalysis; (USA), Journal Name: Journal of Catalysis; (USA) Vol. 120:2; ISSN 0021-9517; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
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Journal Article
·
Sun Mar 31 23:00:00 EST 1991
· Journal of Catalysis; (USA)
·
OSTI ID:5619130
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·
Fri Aug 01 00:00:00 EDT 1986
· J. Catal.; (United States)
·
OSTI ID:5462087
Effect of nickel on the acidity and hydrodesulfurization (HDS) activity of supported molybdate catalysts
Conference
·
Mon Dec 31 23:00:00 EST 1979
· Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)
·
OSTI ID:6361236
Related Subjects
01 COAL, LIGNITE, AND PEAT
010402 -- Coal
Lignite
& Peat-- Purification & Upgrading
02 PETROLEUM
020400* -- Petroleum-- Processing
ADDITIVES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
CATALYST SUPPORTS
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COBALT
CRACKING
CUMENE
DECOMPOSITION
DESULFURIZATION
ELEMENTS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
IMPREGNATION
METALS
MOLYBDENUM COMPOUNDS
MOLYBDENUM FLUORIDES
NICKEL COMPOUNDS
NICKEL FLUORIDES
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS
RECOMMENDATIONS
REFRACTORY METAL COMPOUNDS
SULFIDATION
SURFACE PROPERTIES
SYNTHESIS
THERMOCHEMICAL PROCESSES
THIOPHENE
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
010402 -- Coal
Lignite
& Peat-- Purification & Upgrading
02 PETROLEUM
020400* -- Petroleum-- Processing
ADDITIVES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
CATALYST SUPPORTS
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COBALT
CRACKING
CUMENE
DECOMPOSITION
DESULFURIZATION
ELEMENTS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
IMPREGNATION
METALS
MOLYBDENUM COMPOUNDS
MOLYBDENUM FLUORIDES
NICKEL COMPOUNDS
NICKEL FLUORIDES
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS
RECOMMENDATIONS
REFRACTORY METAL COMPOUNDS
SULFIDATION
SURFACE PROPERTIES
SYNTHESIS
THERMOCHEMICAL PROCESSES
THIOPHENE
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS