Disruption of kerogen-mineral interactions in Rundle Ramsay Crossing oil shale

Journal Article · · Energy Fuel; (United States)

DOI:https://doi.org/10.1021/ef00013a019· OSTI ID:6019920

Siskin, M; Brons, G; Payack, Jr, J F

In an effort to obtain enriched samples of kerogens with minimal alteration to the organic structure, the authors have carried out studies to better understand the nature of the interactions between the kerogen and minerals in oil shales and used this understanding to learn how to disrupt these interactions. The techniques developed with Green River oil shale did not work with Rundle Ramsay Crossing oil shale because the toluene extractant does not wet the Rundle shale. Use of Rundle shale oil solved this problem and proved to be effective in the enrichment of the Rundle oil shale. The approach they used to study the interactions of representative organic model compounds with the major minerals present in oil shales by using TGA desorption and FTIR methods. The results identified acid-base interactions between the organics and clays as the principal chemical interaction responsible for binding the kerogen to the rock in oil shales. On the basis of this conclusion, a chemical approach was devised using ammonium sulfate to simultaneously create porosity, disrupt the clay-organic interactions in Green River oil shale, and produce an essentially unaltered enriched kerogen.

• Research Organization: Exxon Research and Engineering Co., Annandale, NJ (USA)
• OSTI ID: 6019920
• Journal Information: Energy Fuel; (United States), Journal Name: Energy Fuel; (United States) Vol. 3:1; ISSN ENFUE
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040500* -- Oil Shales & Tar Sands-- Properties & Composition
AMMONIUM COMPOUNDS
AMMONIUM SULFATES
BASES
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
DATA
DESORPTION
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FOURIER TRANSFORM SPECTROMETERS
FUELS
GRAVIMETRIC ANALYSIS
INFORMATION
INFRARED SPECTRA
KEROGEN
MATERIALS
MEASURING INSTRUMENTS
MINERALS
NUMERICAL DATA
OIL SHALES
ORGANIC MATTER
OXYGEN COMPOUNDS
PH VALUE
POROSITY
QUANTITATIVE CHEMICAL ANALYSIS
SPECTRA
SPECTROMETERS
SULFATES
SULFUR COMPOUNDS
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS