Isolation of one-ring aromatics in shale oil by Sephadex LH-20 gel
The liquid chromatographic procedure previously reported by Clark et al. (Clark, B.R.; Ho, C.H.; Jones, A.R.; Anal. Chem. 49: 1766 (1977)) was followed in fractionating shale oil hydrocarbons on Sephadex LH-20 gel. The major components of the gas chromatogram of the H-bonded fraction after silica gel treatment were identified by mass spectrometry as mostly one-ring aromatics plus a few two-ring aromatic hydrocarbons. The behavior of paraffinic, olefinic and aromatic hydrocarbons on tetrhydrofuran treated Sephadex LH-20 was previously reported by Hsich et al. (Hisch, B.C.B.; Wood, R.E.; Anderson, L.L.; Hill, G.R.; Anal. Chem. 41: 1066 (1969)). They observed that paraffinic compounds followed a simple curvilinear function with olefinic compounds following the same trend from high to low number, with an icrease in elution volume. However, homologous aromatic compounds exhibited different slopes dependent on molecular size and configuration. For aromatic hydrocarbons of one and two rings, elution volumes greater than the volumes required for C/sub 5/ to C/sub 30/ paraffins and olefins were indicated; this should resolve the one-ring aromatics and some two-ring components from the C/sub 5/ to C/sub 30/ paraffins and olefins.
- Research Organization:
- Univ. of Massachusetts, Amherst
- OSTI ID:
- 6352010
- Journal Information:
- Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 53:4; ISSN ANCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
040500* -- Oil Shales & Tar Sands-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
AROMATICS
CHROMATOGRAPHY
COLLOIDS
CONDENSED AROMATICS
DISPERSIONS
ENERGY SOURCES
FOSSIL FUELS
FRACTIONATION
FUELS
FURANS
GAS CHROMATOGRAPHY
GELS
HETEROCYCLIC COMPOUNDS
LIQUID COLUMN CHROMATOGRAPHY
MASS SPECTROSCOPY
MINERAL OILS
OILS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
SEPARATION PROCESSES
SHALE OIL
SPECTROSCOPY
TETRAHYDROFURAN