Review of supporting research at Oak Ridge National Laboratory for underground coal conversion

Conference · Mon Jan 01 04:00:00 EST 1979

OSTI ID:6028044

Westmoreland, P R; Dickerson, L S

Chemical and physical properties of lignite, subbituminous coal, bituminous coal, and overburden have been measured in research that began in 1974 at Oak Ridge National Laboratory. Generally, large, monolithic blocks of sample have been dried and pyrolyzed. Thermal data and product yields can be correlated to provide an extrapolation from powder pyrolysis to the pyrolysis steps in underground coal gasification. Significant results of the past year include correlation of block pyrolysis data for low-rank coals, interpretation of mechanisms, and comparison between low-rank and bituminous coals; heating tests of overburden cores from the Hoe Creek field gasification site; and measurement of physical properties, particularly thermal diffusivity and thermal conductivity of low-rank coals. Correlations, mechanisms, and property measurements are reviewed, and applications to underground coal gasification are discussed.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6028044
• Report Number(s): CONF-790630-9
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
010600 -- Coal
Lignite
& Peat-- Properties & Composition
CARBONACEOUS MATERIALS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COAL
COAL GASIFICATION
COAL RANK
COAL TAR
CRACKING
DATA
DATA FORMS
DECOMPOSITION
DENSITY
ENERGY SOURCES
ENERGY TRANSFER
ENTHALPY
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
GASIFICATION
HEAT TRANSFER
IN-SITU GASIFICATION
IN-SITU PROCESSING
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OVERBURDEN
PHYSICAL PROPERTIES
POROSITY
PROCESSING
PYROLYSIS
SPECIFIC HEAT
TABLES
TAR
THERMAL CONDUCTIVITY
THERMAL CRACKING
THERMAL DIFFUSIVITY
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES