Effect of heterocyclic organic compounds upon hydrogenation of toluene in the presence of catalysts based on hydrides of intermetallic compounds
Catalysts based on hydrides of intermetallic compounds (ZrNiH/sub 2.8/, ZrCoH/sub 2.8/, HfNiH/sub 2.8/) are known to have high catalytic activity and selectivity in hydrogenation, dehydrogenation, hydrodemethylation and hydrogenolysis of hydrocarbons and hetero-organic compounds. Experimental investigations of hydrorefining of heavy vacuum gas oils and fuel oils on hydrides of intermetallic compounds showed that these products can be subjected to intensive metal removal (95-98%) and deasphalting (70-75%). New catalytic systems were found to be highly selective to transformation of the most unstable part of the raw material, the asphalt-resin compounds, and fairly inert in hydrogenation and desulfurization. Due probably to metal hydrides under low hydrogen pressures being selectively subject to chemisorption of heterocyclic organic compounds and as a consequence transform the least stable carbon atom bonding with sulfur, nitrogen and oxygen atoms. In order to examine in more detail the effect of hetero-organic compounds with a different type of bond, upon the catalytic activity of metal hydrides, the present study examines transformations of model mixtures containing toluene and different types of hetero-organic compounds: sulfur-containing-thiophene and dimethylsulfide; oxygen-containing-dioxane and cyclohexanone; nitrogen-containing compounds - pyridine and aniline.
- Research Organization:
- M. V. Lomonosov State Univ., Moscow, USSR
- OSTI ID:
- 6334785
- Journal Information:
- Pet. Chem. USSR (Engl. Transl.); (United States), Journal Name: Pet. Chem. USSR (Engl. Transl.); (United States) Vol. 25:4; ISSN PECHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020400 -- Petroleum-- Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKYLATED AROMATICS
AROMATICS
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
COBALT COMPOUNDS
COBALT HYDRIDES
DATA
DEACTIVATION
EXPERIMENTAL DATA
HAFNIUM COMPOUNDS
HAFNIUM HYDRIDES
HETEROCYCLIC COMPOUNDS
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGENATION
INFORMATION
NICKEL COMPOUNDS
NICKEL HYDRIDES
NUMERICAL DATA
ORGANIC COMPOUNDS
PERFORMANCE
REFRACTORY METAL COMPOUNDS
TOLUENE
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM HYDRIDES