Kerogen decomposition kinetics of selected Green River and eastern US oil shales from thermal solution experiments

Conference · Wed Apr 01 04:00:00 EST 1987 · American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA)

OSTI ID:5338812

Leavitt, D R; Tyler, A L; Kafesjian, A S

In the thermal solution of kerogen, soluble decomposition products are removed from the oil shale matrix into a solvent--usually present in excess. This provides a favorable method for studying the reaction kinetics of the first steps in the decomposition of kerogen, i.e., the steps in the conversion of insoluble kerogen to a soluble bitumen intermediate. In the work discussed here, thermal solution was used to study kerogen-to-bitumen decomposition kinetics of a Green River oil shale from an outcrop in Hell's Hole Canyon, Uintah County, Utah and a Sunbury oil shale from Montgomery County, Kentucky. The success of thermal solution in removing over 95% of the organic material in the Green River oil shale, including approximately 95% of the aromatic carbon, prompted interest in using this technique to study the recovery of the organic fraction from the more highly aromatic Sunbury oil shale. Kinetic studies using the thermal solution technique were conducted by established non-isothermal procedures at constant heating rates using 1,2,3,4-tetrahydronaphthalene (tetralin) as the solvent. The thermal solution yields and the kinetic mechanisms and rate parameters of kerogen-to-bitumen decomposition are presented for the two oil shales studied in this work.

• OSTI ID: 5338812
• Report Number(s): CONF-8704343--
• Conference Information: Journal Name: American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA) Journal Volume: 32:1
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040500* -- Oil Shales & Tar Sands-- Properties & Composition
AROMATICS
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DATA
DECOMPOSITION
DISPERSIONS
ENERGY SOURCES
EXPERIMENTAL DATA
EXTRACTION
FOSSIL FUELS
FUELS
GEOLOGIC FORMATIONS
GREEN RIVER FORMATION
HYDROCARBONS
INFORMATION
KEROGEN
KINETICS
MATERIALS
MIXTURES
NUMERICAL DATA
OIL SHALES
ORGANIC COMPOUNDS
ORGANIC MATTER
OTHER ORGANIC COMPOUNDS
REACTION KINETICS
SEPARATION PROCESSES
SOLUBILITY
SOLUTIONS
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SYNTHESIS
TAR
TETRALIN