Thermal decomposition of Colorado and Kentucky reference oil shales
Technical Report
·
OSTI ID:6465262
Isothermal pyrolysis studies have been conducted on a Green River Formation oil shale from Colorado and a New Albany oil shale from Kentucky. The conversion of kerogen to bitumen, oil, gas, and residue products was obtained for different isothermal reaction times in the temperature range of 375/degree/C to 440/degree/C (707/degree/ to 824/degree/F) using a heated sand bath reactor system. Particular attention was paid to the formation of the bitumen intermediate during decomposition of the two shales. The maximum amount of extractable bitumen in the New Albany shale was 14% or less of the original kerogen at any given temperature, indicating that direct conversion of kerogen to oil, gas, and residue products is a major pathway of conversion of this shale during pyrolysis. In contrast, a significant fraction of the Colorado oil shale kerogen was converted to the intermediate bitumen during pyrolysis. The bitumen data imply that the formation of soluble intermediates may depend on original kerogen structure and may be necessary for producing high yields by pyrolysis. 24 refs., 14 figs., 8 tabs.
- Research Organization:
- Western Research Inst., Laramie, WY (USA)
- DOE Contract Number:
- FC21-86MC11076
- OSTI ID:
- 6465262
- Report Number(s):
- DOE/MC/11076-2625; ON: DE88010286
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
04 OIL SHALES AND TAR SANDS
040402* -- Oil Shales & Tar Sands-- Surface Methods
040500 -- Oil Shales & Tar Sands-- Properties & Composition
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COLORADO
DATA
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
EXPERIMENTAL DATA
FEDERAL REGION IV
FEDERAL REGION VIII
FOSSIL FUELS
FUELS
HYDROCARBONS
INFORMATION
KENTUCKY
KEROGEN
KINETICS
MATERIALS
MATHEMATICAL MODELS
NITROGEN
NONMETALS
NORTH AMERICA
NUMERICAL DATA
OIL SHALES
ORGANIC COMPOUNDS
ORGANIC MATTER
OTHER ORGANIC COMPOUNDS
PYROLYSIS
PYROLYSIS PRODUCTS
REACTION KINETICS
TAR
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
TIME DEPENDENCE
USA
040402* -- Oil Shales & Tar Sands-- Surface Methods
040500 -- Oil Shales & Tar Sands-- Properties & Composition
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COLORADO
DATA
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
EXPERIMENTAL DATA
FEDERAL REGION IV
FEDERAL REGION VIII
FOSSIL FUELS
FUELS
HYDROCARBONS
INFORMATION
KENTUCKY
KEROGEN
KINETICS
MATERIALS
MATHEMATICAL MODELS
NITROGEN
NONMETALS
NORTH AMERICA
NUMERICAL DATA
OIL SHALES
ORGANIC COMPOUNDS
ORGANIC MATTER
OTHER ORGANIC COMPOUNDS
PYROLYSIS
PYROLYSIS PRODUCTS
REACTION KINETICS
TAR
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
TIME DEPENDENCE
USA