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Determination of metals in kerogens: A comparative analytical study

Conference · · American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA)
OSTI ID:6893147
; ;  [1]; ;  [2];  [3]
  1. Washington State Univ., Pullman (USA)
  2. UNOCAL Science and Technology Div., Brea, CA (USA)
  3. Univ. of Munich (West Germany)
+ Show Author Affiliations

Kerogens from bitumen-extracted New Albany, Green River, and Monterrey shales, a torbanite (Hartley Vale) and a brown coal (Gippsland coal) were isolated using different procedures in three laboratories. All samples were analyzed for metals using X-ray fluorescence (XRF, Munich), inductively coupled plasma spectrometry (ICP, UNOCAL) and neutron activation analysis (NAA, WSU). No systematic differences in analyses using NAA, XRF or ICP for identical samples were observed for the elements determined (Cr, Co, Fe, Mn, Ni, V, and Zn). Differences in elemental abundances were observed in kerogens isolated by different techniques, indicating the need for well-documented isolation procedures when comparing trace element data for kerogens. Methods designed to remove residual pyrite from kerogens appear to result in modification of the trace element species in the organic fraction.

OSTI ID:
6893147
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

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Related Subjects

01 COAL, LIGNITE, AND PEAT
010800 -- Coal
Lignite
& Peat-- Waste Management
04 OIL SHALES AND TAR SANDS
040500* -- Oil Shales & Tar Sands-- Properties & Composition
58 GEOSCIENCES
580000 -- Geosciences
ACTIVATION ANALYSIS
BITUMINOUS MATERIALS
BLACK SHALES
BROWN COAL
CARBONACEOUS MATERIALS
CHATTANOOGA FORMATION
CHEMICAL ANALYSIS
CHROMIUM
COAL
COBALT
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GEOLOGIC FORMATIONS
GREEN RIVER FORMATION
IRON
KEROGEN
MANGANESE
MATERIALS
METALS
NEUTRON ACTIVATION ANALYSIS
NICKEL
OIL SHALES
ORGANIC MATTER
QUALITATIVE CHEMICAL ANALYSIS
SPECTROSCOPY
TRACE AMOUNTS
TRANSITION ELEMENTS
VANADIUM
ZINC