Distribution of acyclic isoprenoids in fractions from stepwise oxidation of Green River kerogen

Journal Article · Thu Dec 31 23:00:00 EST 1987 · Energy Sources (New York); (USA)

DOI:https://doi.org/10.1080/00908318808908934· OSTI ID:7262991

Barakat, A O ^[1]; Yen, T F ^[2]

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1. Dept. of Chemistry, Alexandria Univ., Alexandria (EG)
2. Univ. of Southern California, School of Engineering, Los Angeles, CA (US)

A study on the distribution of isoprenoid structures in the five fractions obtained by mild Na{sub 2}Cr{sub 2}O{sub 7}/AcOH stepwise oxidation of Green River kerogen is presented. Gas chromatography-mass spectrometry analysis of the fractions resulted in the identification of a homologous series of isoprenoid acids ranging from C{sub 14}-C{sub 21} with C{sub 16} as the largest and C{sub 18} entirely absent, as well as the two isoprenoidal ketones; 6,10-dimethyl-2-undecanone and 6,10,14-trimethyl-2-pentadecanone. A semi-quantitative analysis of these components was performed using an INCOS 2300 data system. On the basis of the results obtained, it is suggested that isoprenoid structures do not constitute more than 4% of the kerogen matrix. The results also substantiate previous assumptions that the phytol side chain of chlorophyll is the most likely pregenitor to the chain isoprenoids found in the Green River kerogen.

• OSTI ID: 7262991
• Journal Information: Energy Sources (New York); (USA), Journal Name: Energy Sources (New York); (USA) Vol. 10:4; ISSN 0090-8312; ISSN EGYSA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
023000* -- Petroleum-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CARBOXYLIC ACIDS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CHLOROPHYLL
CHROMATOGRAPHY
ENERGY SOURCES
FOSSIL FUELS
FUELS
GAS CHROMATOGRAPHY
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
KEROGEN
MASS SPECTROSCOPY
MATERIALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC MATTER
ORGANIC NITROGEN COMPOUNDS
OXIDATION
PETROLEUM
PETROLEUM FRACTIONS
PHYTOCHROMES
PIGMENTS
PORPHYRINS
PROTEINS
SEPARATION PROCESSES
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS