Hydrodenitrogenation of decahydroquinoline, cyclohexylamine and O-propylaniline over carbon-supported transition metal sulfide catalysts
- Eindhoven Univ. of Technology (Netherlands)
Carbon-supported transition metal sulfide (TMS) catalysts were prepared by impregnation of an activated carbon support with aqueous solutions of first-, second-, and third-row (group V-VIII) transition metal salts followed by drying and in situ sulfidation. Their activity for the hydrodenitrogenation of decahydroquinoline (5.2-5.5 MPa, 623-653 K), cyclohexylamine (4.8-5.5 MPa, 543-653 K), and o-propylaniline (5.1-5.5 MPa, 593-653 K) was tested in microautoclaves. When plotted versus the position of the transition metal in the Periodic System, the conversions of all three N-containing reactants to hydrocarbons over the first-row transition metal sulfides formed U-shaped curves with a minimum at Mn, while V had the highest conversion. The decahydroquinoline and cyclohexylamine conversions to hydrocarbons over the second- and third-row TMS formed volcano curves with maxima at Rh and Ir, respectively. Disproportionation reactions were found to be important side reactions in the cyclohexylamine hydrodenitrogenation. The activities of the second-row transition metal sulfides for the conversion of 0-propylaniline formed a volcano curve with a maximum at Ru or Rh sulfide, whereas the activities of the third-row transition metal sulfides formed a strongly distorted volcano curve. All catalysts and especially Re sulfide had a very high selectivity for propylbenzene.
- OSTI ID:
- 5648157
- Journal Information:
- Journal of Catalysis; (USA), Journal Name: Journal of Catalysis; (USA) Vol. 127:2; ISSN 0021-9517; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
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ACTIVATED CARBON
ADSORBENTS
AMINES
AROMATICS
AZAARENES
AZINES
CARBON
CATALYST SUPPORTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DENITRIFICATION
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
IMPREGNATION
IRIDIUM
KINETICS
MANGANESE
METALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM RESIDUES
PLATINUM METALS
POLYCYCLIC AROMATIC AMINES
PROCESSING
PYRIDINES
QUINOLINES
REACTION KINETICS
REFINING
RHENIUM
RHODIUM
RUTHENIUM
SULFIDATION
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VANADIUM
VISCOSITY