Molecular accessibility in solvent swelled coal

Technical Report · Wed Oct 31 23:00:00 EST 1990

DOI:https://doi.org/10.2172/6471016· OSTI ID:6471016

Kispert, L D

Research continued on the swelling of coal. Changes in the size and number distribution of the accessible regions in five Argonne Premium Coal Samples (APCS No.3, No.4, No.5, No.6, and No.8) upon swelling with the solvents, cyclohexane, toluene, nitrobenzene and pyridine were examined by an EPR spin probe method. It was found that as the basicity of the solvent increased the number and length of the cylindrical pores increased with decreasing rank. The number of cylindrical pores also increased with oxygen content (with decreasing rank) suggesting a destruction of the hydrogen-bond network upon swelling with pyridine. 6 refs.

• Research Organization: Alabama Univ., University, AL (USA). Dept. of Chemistry
• Sponsoring Organization: DOE/FE
• DOE Contract Number: FG22-90PC90284
• OSTI ID: 6471016
• Report Number(s): DOE/PC/90284-1; ON: DE91005554
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
ALKYLATED AROMATICS
AROMATICS
AZINES
CARBONACEOUS MATERIALS
COAL
COAL RANK
DOCUMENT TYPES
ENDOR
ENERGY SOURCES
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
MAGNETIC RESONANCE
MATERIALS
NITRO COMPOUNDS
NITROBENZENE
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
POROSITY
PROBES
PROGRESS REPORT
PYRIDINE
PYRIDINES
RESONANCE
SWELLING
TOLUENE