Analysis of heavy oils: Method development and application to Cerro Negro heavy petroleum: Topical report
Preparative charge-transfer chromatographic methods have been developed for grouping aromatic hydrocarbons by the number of condensed aromatic rings they contain. Cerro Negro neutral fractions were used as test probes in methods development. Monoaromatic, diaromatic, and polyaromatic-polar concentrates were separated from three Cerro Negro distillates and a residue. Concentrations of these ring number groups are compared for the 425 to 550/degree/C boiling range of Cerro Negro with those of two similar boiling conventional crudes and one aromatic crude. Mass spectrometric and fluorometric data on Cerro Negro fractions indicated that charge transfer separation techniques described in this report grouped aromatic hydrocarbons well by ring number for the 1-, 2-, and 3-ring fractions of material boiling below 550/degree/C. Aromatic ring number separations are less satisfactory for higher boiling material, and material containing 4 or more aromatic rings. Better separation methods are needed for high boiling (>550/degree/C) neutral fractions. Sulfur compounds are not separated by ring number in the same manner as hydrocarbons on the charge transfer material (2,4-dinitroanilinopropylsilica) used. The separations should be performed on sulfur-free material for optimum results. 22 refs., 12 figs., 4 tabs.
- Research Organization:
- National Inst. for Petroleum and Energy Research, Bartlesville, OK (USA)
- DOE Contract Number:
- FC22-83FE60149
- OSTI ID:
- 5212499
- Report Number(s):
- NIPER-324; ON: DE88001223
- Country of Publication:
- United States
- Language:
- English
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023000* -- Petroleum-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
ALKANES
AROMATICS
BOILING POINTS
CHALCOGENIDES
CHLORINATED ALIPHATIC HYDROCARBONS
CHROMATOGRAPHY
COLUMN PACKING
DATA
DEVELOPING COUNTRIES
DISTILLATES
ENERGY SOURCES
EXPERIMENTAL DATA
EXTRACTION APPARATUSES
EXTRACTION COLUMNS
FLUORESCENCE
FOSSIL FUELS
FUELS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROCARBONS
INFORMATION
LATIN AMERICA
LIQUID COLUMN CHROMATOGRAPHY
LUMINESCENCE
MASS SPECTROSCOPY
METHYL CHLORIDE
MINERALS
MOLECULAR STRUCTURE
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PACKINGS
PENTANE
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PHYSICAL PROPERTIES
POLYCYCLIC AROMATIC HYDROCARBONS
RESIDUES
SEPARATION EQUIPMENT
SEPARATION PROCESSES
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SOUTH AMERICA
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS
SULFUR COMPOUNDS
SYNCHRONIZATION
TEMPERATURE EFFECTS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
VENEZUELA
VISCOSITY