Hydrodesulfurization of dibenzothiophene in a monolithic catalyst reactor
The liquid-phase hydrodesulfurization of dibenzothiophene was studied on a Co-Mo/[gamma]-Al[sub 2]O[sub 3] catalyst. The catalyst support was a monolith with a cell density of 200 cells/in.[sup 2]. The flow pattern was segmented gas-liquid flow. The hydrogen pressures were in the range 6-8 MPa, and the temperatures were in the range 543-573 K. A kinetic model consistent with the experimental rate data was developed. The rate expressions are of the Langmuir-Hinshelwood type, assuming two different types of active sites: one active in the hydrodesulfurization reaction and the other active in the hydrogenation reaction. The reaction scheme proposed is a parallel-serial one in which dibenzothiophene desulfurizes to cyclohexylbenzene, either directly or via biphenyl which subsequently undergoes ring hydrogenation. A simple power law model is also presented.
- OSTI ID:
- 6452783
- Journal Information:
- Industrial and Engineering Chemistry Research; (United States), Journal Name: Industrial and Engineering Chemistry Research; (United States) Vol. 32:2; ISSN IECRED; ISSN 0888-5885
- Country of Publication:
- United States
- Language:
- English
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Hydrodesulfurization of dibenzothiophene on a CoMo/Al{sub 2}O{sub 3} catalyst: Reaction network and kinetics
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ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYST SUPPORTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL LIQUIDS
COBALT
DESULFURIZATION
ELEMENTS
ENERGY SOURCES
EQUATIONS
FLUIDS
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
HYDROGENATION
KINETIC EQUATIONS
KINETICS
LIQUIDS
MATHEMATICAL MODELS
METALS
MOLYBDENUM
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
POLYCYCLIC SULFUR HETEROCYCLES
REACTION INTERMEDIATES
REACTION KINETICS
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K
TRANSITION ELEMENTS