Determination of organic inorganic associations of trace elements in New Albany shale kerogen

Conference · Tue Feb 28 23:00:00 EST 1989 · American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA)

OSTI ID:6821713

Mercer, G E; Filby, R H ^[1]

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1. Washington State Univ., Pullman (USA)

The inorganic and organic trace element associations in the kerogen isolated from the New Albany shale were studied by analysis of kerogen fractions and a mineral residue obtained using density separations. Elemental mass balance data from these fractions indicate a predominantly inorganic association with pyrite and marcasite for several elements (As, Co, Ga, Mn, Ni, Sb and Se). The degree of inorganic association of these elements was determined by treatment of the mineral residue ({approximately}85% FeS{sub 2}) with dilute HNO{sub 3} to remove pyrite and marcasite. The association of several other elements in minerals which are insoluble in dilute HNO{sub 3} (rutile, zircon, etc.) were also determined. The results of these studies indicate an essentially total organic association for V and approximately 95% organic association for Ni in New Albany kerogen. The determination of organically combined elements is very difficult for those elements which are predominantly concentrated in the mineral fraction. Correction methods based on low temperature ashing, chemical removal of pyrite, and physical methods of separation are compared.

• OSTI ID: 6821713
• Report Number(s): CONF-8904127--
• Journal Information: American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA), Journal Name: American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA) Vol. 34:1; ISSN 0569-3799; ISSN ACPCA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
04 OIL SHALES AND TAR SANDS
040500 -- Oil Shales & Tar Sands-- Properties & Composition
58 GEOSCIENCES
580000 -- Geosciences
ARSENIC
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMISTRY
COBALT
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GALLIUM
GEOCHEMISTRY
IRON COMPOUNDS
IRON SULFIDES
KEROGEN
MANGANESE
MATERIALS
METALS
MINERALS
NICKEL
OIL SHALES
ORGANIC MATTER
PYRITE
SELENIUM
SEMIMETALS
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
TIN
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VANADIUM