Low temperature swelling of Argonne Premium Coal Samples: Effect on pore structure

Conference · Tue Jan 01 04:00:00 EST 1991

OSTI ID:6034098

Spears, D R; Kispert, L D; Piekara-Sady, L

Changes in the pore structure of Argonne Premium Coal Samples (APCS) upon slurrying at different temperatures with the solvents toluene, nitrobenzene and pyridine were followed using an EPR spin probe method. At room temperature, spherical shaped pores in coal slurried with nitrobenzene become elongated and cylindrical at 60{degree}C. Coal slurried with pyridine exhibits few detectable spherical shaped pores at room temperature but exhibits significant concentrations of elongated pores at 60{degree}C. This change in pore structure was attributed to the break-up of the hydrogen bonding network by the pyridine solvent. 21 refs., 5 figs., 1 tab.

• Research Organization: Alabama Univ., University, AL (USA). Dept. of Chemistry
• Sponsoring Organization: DOE; USDOE, Washington, DC (USA)
• DOE Contract Number: FG22-90PC90284
• OSTI ID: 6034098
• Report Number(s): CONF-910402-11; ON: DE91010609
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010600* -- Coal
Lignite
& Peat-- Properties & Composition
ALKYLATED AROMATICS
AMBIENT TEMPERATURE
AROMATICS
AZINES
BITUMINOUS COAL
BLACK COAL
BROWN COAL
CARBONACEOUS MATERIALS
CHEMICAL BONDS
CHEMICAL COMPOSITION
COAL
CRYSTAL STRUCTURE
DATA
DEFORMATION
DISSOLUTION
ELECTRON SPIN RESONANCE
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROGEN
INFORMATION
LIGNITE
MAGNETIC RESONANCE
MATERIALS
MICROSTRUCTURE
MORPHOLOGICAL CHANGES
NITRO COMPOUNDS
NITROBENZENE
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
POROSITY
PYRIDINE
PYRIDINES
RESONANCE
SUBBITUMINOUS COAL
SWELLING
TOLUENE