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Comparative efficiency of bulk Ni-Mo and Ni-W catalytic systems in hydrogenation and hydrodesulfurization reactions

Journal Article · · Kinet. Catal. (Engl. Transl.); (United States)
OSTI ID:5886683
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Catalytic properties have been compared for Ni-Mo and Ni-W bulk catalysts molded with aluminum oxide; the catalysts were prepared by sulfiding the optimized oxide predecessors, and the activity was tested in the hydrogenation of o-xylene and the hydrodesulfurization of thiophene. It was found that strong granules of the Ni-W catalyst with maximum activity could be obtained only by pressing into tablets after sulfiding; for the Ni-Mo catalyst, the best procedure was extrusion molding in the oxide form. The advantages and disadvantages of the optimized Ni-Mo and Ni-W catalysts are discussed, in terms of differences in the hydrogenating and hydrodesulfurizing activities, the pore structure of the granules, and the regeneration characteristics.

OSTI ID:
5886683
Journal Information:
Kinet. Catal. (Engl. Transl.); (United States), Journal Name: Kinet. Catal. (Engl. Transl.); (United States) Vol. 27:4; ISSN KICAA
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ADSORPTION ISOTHERMS
ALKYLATED AROMATICS
AROMATICS
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
DESULFURIZATION
EFFICIENCY
ELEMENTS
HETEROCYCLIC COMPOUNDS
HETEROGENEOUS CATALYSIS
HYDROCARBONS
HYDROGENATION
ISOTHERMS
KINETICS
MATERIALS TESTING
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
NICKEL COMPOUNDS
NICKEL OXIDES
NITROGEN
NONMETALS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OXYSULFIDES
POROSITY
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
REGENERATION
SORPTIVE PROPERTIES
SULFIDATION
SULFUR COMPOUNDS
SURFACE PROPERTIES
TESTING
THIOPHENE
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN OXIDES
XYLENES