Automated liquid chromatographic compound class group-type separation of crude oils and bitumens using chemically bonded aminosilane
A rapid, automated high-performance liquid chromatographic (HPLC) system has been developed for the semipreparative separations of crude oils, bitumens, and related materials into either compound class group-type fractions (saturate, aromatic, and polar) or aromatic ring-number fractions (saturate, mono-, di-, tri-, and polyaromatic, and polar). Separations are performed with commercially available HPLC components and chemically bonded silica-NH/sub 2/ columns. The reproducibility in the quantitative data obtained from the method is excellent for crude and process oils with an average percent deviation of approximately 2% for any compound class group-type fractions. The importance of molecular structure and substituent effects on the separation of aromatic hydrocarbons according to the number of aromatic rings was determined by using 57 model compounds typically found in fossil fuels. The degree of overlap between aromatic ring-number fractions is minimal using the method as assessed by gas chromatographic/mass spectrometric Z series analyses of each ring-number fraction obtained from a highly aromatic crude oil.
- Research Organization:
- Sun Exploration and Production Co., Richardson, TX
- OSTI ID:
- 5301266
- Journal Information:
- Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 58:12; ISSN ANCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
023000* -- Petroleum-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
400104 -- Spectral Procedures-- (-1987)
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
AROMATICS
AUTOMATION
BITUMENS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHROMATOGRAPHY
DATA
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
GAS CHROMATOGRAPHY
INFORMATION
LIQUID COLUMN CHROMATOGRAPHY
MASS SPECTROSCOPY
MINERALS
MOLECULAR STRUCTURE
NUMERICAL DATA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
POLAR COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SPECTROSCOPY
TAR