Study of oxide predecessors of active structures in Al-Ni-Mo hydrogenation catalysts by extractive separation of components. III. Catalytic activity of sulfidation products of structures strongly and weakly bound to the carrier in hydrogenation, hydrodesulfurization, and hydrodenitrogenation reactions
The catalytic activities of sulfidized Al-Ni-Mo catalysts, synthesized by different methods, were compared in the hydrogenation reaction of o-xylene, hydrodesulfurization of thiophene, and hydrodenitrogenation of piperidine. It was found that irrespective of the method of the preparation of the catalysts, the hydrogenation of the aromatic ring preferentially proceeds on the sulfidation products of Ni and Mo compounds, weakly bound to the carrier (nickel isopolymolybdates and aluminomolybdates), removable by aqueous extraction, while the hydrogenolysis reactions of thiophene and piperidine are preferentially carried on the sulfidation products of compounds which are strongly bound to the carrier (of the surface aluminum molybdate and nickel aluminate type).
- Research Organization:
- All-Union Sci-Res Oil Refining Institute, Moscow
- OSTI ID:
- 7005955
- Journal Information:
- Kinet. Catal. (Engl. Transl.); (United States), Journal Name: Kinet. Catal. (Engl. Transl.); (United States) Vol. 27:2,PT. 2; ISSN KICAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
ALKYLATED AROMATICS
ALUMINIUM
AMINES
AROMATICS
AZINES
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL BONDS
CHEMICAL REACTIONS
CHEMISORPTION
DESORPTION
ELEMENTS
EXTRACTION
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGENATION
METALS
MOLYBDATES
MOLYBDENUM
MOLYBDENUM COMPOUNDS
NICKEL
NITROGEN
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PIPERIDINES
PYRIDINES
REFRACTORY METAL COMPOUNDS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SORPTION
SULFIDATION
SYNTHESIS
THIOPHENE
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WATER
XYLENES