Effect of presulfiding on HDS (hydrodesulfurization) catalyst fouling
Two cobalt-molybdenum-alumina catalysts, A and B, and two similar catalysts also containing nickel, C and D, were presulfided (51-67Vertical Bar3<) and used to hydrodesulfurize Khafji atmospheric residuum or Iranian heavy atmospheric or vacuum residuum, containing 4.02, 2.68, and 3.67Vertical Bar3< by wt of sulfur and 94, 120, and 270 ppm of vanadium, respectively, at 395/sup 0/-400/sup 0/C, 130-140 kg/sq cm, and 1000:1 hydrogen-oil volume ratio. Presulfiding generally suppressed coke deposition. It increased the life of catalyst A by approx. 50Vertical Bar3<, had practically no effect on catalyst B, reduced activity for vanadium removal but had no effect on sulfur removal of catalyst C, and decreased desulfurization activity of catalyst D. These different effects were caused by differences in catalyst properties, especially the composition and pore diameter.
- Research Organization:
- Chiyoda Chem. Eng. Constr. Co. Ltd.
- OSTI ID:
- 6950709
- Report Number(s):
- CONF-790415-
- Journal Information:
- Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States), Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Vol. 24:2; ISSN ACPCA
- 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
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COBALT
COMPARATIVE EVALUATIONS
CRYSTAL STRUCTURE
DATA
DEACTIVATION
DESULFURIZATION
ELEMENTS
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FOULING
FUELS
HIGH TEMPERATURE
INFORMATION
METALS
MICROSTRUCTURE
MOLYBDENUM
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM RESIDUES
QUANTITY RATIO
SULFIDATION
SYNTHESIS
TRANSITION ELEMENTS