Vapor-phase catalytic hydrodeoxygenation of benzofuran
The catalytic hydrodeoxygenation (HDO) of benzofuran was examined at 300 to 400/sup 0/C and 35 atm total pressure over a presulfided NiMo/..gamma..-Al/sub 2/O/sub 3/ catalyst. Results from a continuous, plug-flow microreactor operated in the integral (high-conversion) mode show that the benzofuran reaction network includes initial hydrogenation and hydrogenolysis to the oxygenated intermediates 2,3-dihydrobenzofuran o-ethyl phenol, and phenol. The major products formed from subsequent HDO of the phenols are ethylbenzene, toluene, benzene, and ethylcyclohexane. Kinetic analysis shows that hydrogenation of benzofuran may be modeled as pseudo-first order in benzofuran concentration. The HDO reaction shows non-first-order kinetics, and may be modeled as -1 order in oxygenated compounds. The activation energies for the steps of hydrogenation and HDO are lower than those previously reported in the literature for benzofuran HDO over a presulfided CoMo/..gamma..-Al/sub 2/O/sub 3/ catalyst.
- Research Organization:
- Colorado School of Mines, Golden (USA)
- OSTI ID:
- 7042892
- Journal Information:
- J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 111:2; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
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ACTIVATION ENERGY
ALKANES
ALKYLATED AROMATICS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
BENZENE
BENZOFURANS
BIMETALS
BITUMENS
CATALYST SUPPORTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL LIQUIDS
CYCLOALKANES
CYCLOHEXANE
ELEMENTS
ENERGY
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
FURANS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROGENATION
KINETICS
LIQUIDS
MATHEMATICAL MODELS
METALS
MINERAL OILS
MOLYBDENUM
NICKEL
OILS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PROCESSING
REACTION INTERMEDIATES
REACTION KINETICS
REDUCTION
REFINING
SHALE OIL
TAR
TOLUENE
TRANSITION ELEMENTS