Distribution of vanadium and vanadyl porphyrins in petroleum distillates of different chemical types
Vanadium among the many microelements present in petroleum crude is of special interest for a number of reasons. The vanadium content of petroleum often exceeds that of any other metal, reaching 1-/sup -2/ wt.%. This microelement is found in porphyrins which are the only accurately defined class of petroleum component containing metal; accordingly considerable attention has recently been given to the study of porphyrins. The presence of vanadium in petroleum and its products contaminates processing catalysts considerably and causes corrosion of engine components and power plants using diesel, jet and boiler fuels. Ashes formed during the combustion of fuel oils often have a higher vanadium pentoxide content than many industrial ores and can provide a raw material for its production. The main part of petroleum vanadium is concentrated in resins and asphaltenes and only a small part is associated with the heteroatomic impurities contained in petroleum from which resin has been extracted. The distribution of V atoms between these groups of petroleum components varies within comparatively wide limits and will depend on the chemical nature of the resin-asphaltene substances, that is on the chemical character of the petroleum itself. A convenient way to verify this assumption requires the examination of petroleums in one multilayer deposit. Results described here reveal the vanadium distribution between the petroleum component groups recovered from various levels of Samotlor deposit.
- OSTI ID:
- 5298546
- Journal Information:
- Pet. Chem. USSR (Engl. Transl.); (United States), Journal Name: Pet. Chem. USSR (Engl. Transl.); (United States) Vol. 24:4; ISSN PECHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
023000* -- Petroleum-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104 -- Spectral Procedures-- (-1987)
400105 -- Separation Procedures
ABSORPTION SPECTROSCOPY
ASIA
ASPHALTENES
ASPHALTS
BITUMENS
CARBOXYLIC ACIDS
CHEMICAL ANALYSIS
DATA
EASTERN EUROPE
ELEMENTS
ENERGY SOURCES
EUROPE
EXPERIMENTAL DATA
EXTRACTION
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
INFORMATION
METALS
MINERAL RESOURCES
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
OTHER ORGANIC COMPOUNDS
PETROCHEMICALS
PETROLEUM
PETROLEUM DEPOSITS
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
POLYMERS
PORPHYRINS
PRECIPITATION
QUANTITATIVE CHEMICAL ANALYSIS
RESINS
RESOURCES
SEPARATION PROCESSES
SOLVENT EXTRACTION
SPECTROSCOPY
TAR
TRANSITION ELEMENTS
USSR
VANADIUM