The nature of porphyrin in kerogen

Conference · Tue Apr 01 04:00:00 EST 1986 · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)

OSTI ID:5543692

Barakat, A O; Yen, T F

Both Green River and Monterey Oil Shales (approx. =140 mesh) were used to prepare kerogen concentrates (ash content: 4.3% for Green River, 5.6% for Monterey). The bitumen of both shale samples were removed by extraction with phiH-MeOH azeotrope before and after the mineral removal step. The bitumen-free kerogen concentrates were subjected to controlled, mild, stepwise oxidation with Na/sub 2/Cr/sub 2/O/sub 7/-HOAc to yield five (Green River) and four (Monterey) fractions. Analyses of the oxidation products were carried out by capillary GC and GC-MS. Results from the studies of all the fractions suggest the following tentative conclusions: 1) porphyrin is not homogeneously distributed throughout kerogen matrix, 2) only etioporphyrin III is found for the porphyrin type in kerogen, 3) it is not likely that porphyrin is chemically bounded to kerogen.

• Research Organization: Faculty of Science, Alexandria Univ., Alexandria
• OSTI ID: 5543692
• Report Number(s): CONF-860425-
• Conference Information: Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Journal Volume: 31:2
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040500* -- Oil Shales & Tar Sands-- Properties & Composition
ASH CONTENT
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CARBOXYLIC ACIDS
CHEMICAL ANALYSIS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHROMATOGRAPHY
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
GAS CHROMATOGRAPHY
GEOLOGIC FORMATIONS
GREEN RIVER FORMATION
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
KEROGEN
MASS SPECTRA
MATERIALS
OIL SHALES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC MATTER
ORGANIC NITROGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
PORPHYRINS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SPECTRA
TAR
YIELDS