Effect of reduced pressure on oil shale retorting. 1. Kinetics of oil generation
The rate of oil generation in oil shale retorting under reduced pressure was determined by a nonisothermal technique. First-order kinetics adequately approximated the overall retorting rate of Colorado oil shale regardless of the type and pressure of the sweep gas. The activation energy remained relatively constant with pressure fo each sweep gas, while the preexponential factor increased as pressure decreased. The rate expressions for retorting with nitrogen and carbon dioxide were substantially the same, while retorting with water vapor produced a higher rate constant than that with nitrogen or carbon dioxide. The kinetics expression for oil generation remained relatively unchanged for different grades of oil shale containing organic matter of similar compositions.
- Research Organization:
- Departments of Fuels Engineering and of Metallurgy and Metallurgical Engineering, University of Utah, Salt Lake City, Utah
- OSTI ID:
- 5423669
- Journal Information:
- Ind. Eng. Chem. Process Des. Dev.; (United States), Journal Name: Ind. Eng. Chem. Process Des. Dev.; (United States) Vol. 24:2; ISSN IEPDA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effect of Reduced Pressure on Oil Shale Retorting. 2. Oil Yield
Oil shale retorting: kinetics of the decomposition of carbonate minerals and subsequent reaction of CO/sub 2/ with char
Related Subjects
040402* -- Oil Shales & Tar Sands-- Surface Methods
ACTIVATION ENERGY
BITUMINOUS MATERIALS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COLORADO
DECOMPOSITION
ELEMENTS
ENERGY
ENERGY SOURCES
FEDERAL REGION VIII
FLUIDS
FOSSIL FUELS
FUELS
GASES
GEOLOGIC DEPOSITS
MATERIALS
MINERAL RESOURCES
NITROGEN
NONMETALS
NORTH AMERICA
OIL SHALE DEPOSITS
OIL SHALES
OIL YIELDS
OXIDES
OXYGEN COMPOUNDS
PRESSURE DROP
PRESSURE EFFECTS
RESOURCES
RETORTING
USA
VAPORS
WATER VAPOR
YIELDS