Gasification of Chattanooga Oil Shale char in a continuous fluidized-bed

Conference · Fri Feb 01 04:00:00 EST 1985 · Proceedings, Eastern Oil Shale Symposium; (United States)

OSTI ID:6204957

Yoo, K T; McKinley, M D; Hanna, J

The University of Alabama is engaged in a multi-phase research program incorporating basic and applied studies to develop and evaluate innovative and advanced process technology for processing Eastern oil shale. The gasification of spent shale char using CO/sub 2/-steam is one aspect of the research which is discussed. A Madison County, Alabama oil shale sample, finely ground and sized to 150 x 200 mesh, was retorted under standard Fischer assay conditions. The spent shale was gasified at atmospheric pressure in a continuous 1-inch fluidized-bed unit using CO/sub 2/-steam as the fluidizing medium. A mathematical model, based on mass and carbon balances and the major chemical changes in the reactor, was developed to predict the product gas rate, composition, and carbon conversion rate of spent shale char in the fluidized-bed gasifier. The predicted data were in good agreement with the experimental results. The model predicted that operating conditions for the highest net energy production were 1260/sup 0/K, 75 minutes solid residence time, and 50% CO/sub 2/-steam fluidizing medium.

• Research Organization: Univ. of Alabama, Tuscaloosa
• OSTI ID: 6204957
• Report Number(s): CONF-8411130-
• Conference Information: Journal Name: Proceedings, Eastern Oil Shale Symposium; (United States) Journal Volume: IMMR84/124
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040402* -- Oil Shales & Tar Sands-- Surface Methods
BITUMINOUS MATERIALS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHATTANOOGA FORMATION
CHEMICAL REACTIONS
DECOMPOSITION
ENERGY SOURCES
FISCHER ASSAY
FLUIDIZED BED REFUSE GASIFICATION
FLUIDIZED BEDS
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
GEOLOGIC FORMATIONS
MANAGEMENT
MATERIALS
MATHEMATICAL MODELS
OIL SHALES
OPERATION
OXIDES
OXYGEN COMPOUNDS
PROCESSING
PRODUCTION
RETORTING
SPENT SHALES
STEAM
WASTE MANAGEMENT
WASTE PROCESSING