Catalyst accessibility in high volatile bituminous coal: Quarterly report

Technical Report · Sat Oct 01 04:00:00 EDT 1988

OSTI ID:6811484

Kispert, L D

As reported previously we are making use of an EPR technique developed in this lab to determine the pore size and number distribution in high volatile bituminous coal using nitroxide spin probes of different sizes, shapes, and reactivity. This year we have been studying pore size and shape distribution in Pittsburgh No. 8, Blind Canyon and Illinois No. 6 coal from the Argonne Premium Coal Program as well as in PSOC-311 (No. 6 seam, Fruitland, New Mexico) and PSOC-1354 (Illinois No. 6, Douglas County, IL) coals. We have also reported a study of the acidic and phenolic site distribution in Black Creek (Alabama) and Illinois No. 6 (Argonne Premium Coal Sample Program) coal samples finding that these sites exceed the amine sites. It was also shown that the presence of hydrogen bonding did not aid the incorporation of spin probes in Mary Lee (Alabama) and Black Creek (Alabama) Coal. This quarter, a study was carried out to determine whether use of ethanol as a wash solvent significantly swelled the coal during the few minutes of contact time and thus enable spin probes to be removed from encapsulating pores. The study was carried out as a function of relative spin probe size, acid/base reactive site and swelling solvent. 1 fig., 3 tabs.

• Research Organization: Alabama Univ., University (USA). Dept. of Chemistry
• DOE Contract Number: FG22-86PC90502
• OSTI ID: 6811484
• Report Number(s): DOE/PC/90502-8; ON: TI89003393
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
ALCOHOLS
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CATALYSTS
COAL
DISTRIBUTION
DOCUMENT TYPES
ELECTRON SPIN RESONANCE
ENERGY SOURCES
ETHANOL
FOSSIL FUELS
FUELS
HYDROXY COMPOUNDS
MAGNETIC RESONANCE
MATERIALS
ORGANIC COMPOUNDS
POROSITY
PROBES
PROGRESS REPORT
RESONANCE
SOLVENT PROPERTIES
SOLVENTS
SWELLING