Surface and pore properties of ANL and PETC coals

Conference · Thu Dec 31 23:00:00 EST 1987 · Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States)

OSTI ID:5975095

Bartholomew, C H; White, W E; Thornock, D; Wells, W F; Hecker, W C; Smoot, L D; Smith, D M; Williams, F L

Surface areas, pore volumes, pore size distribution, and solid densities were measured for three ANL coals (Pittsburgh No. 8, Wyodak, and Beulah Zap Lignite), two PETC coals (Lower Wilcox, and Dietz) and a Utah Scofield coal and for chars derived from these coals. Surface areas were measured using nitrogen and carbon dioxide adsorptions; pore volumes were determined using nitrogen adsorption, mercury porosimetry, and NMR spin-lattice relaxation measurements of samples saturated with water. Solid densities were obtained using helium displacement. The results indicate that chars have larger surface areas and pores relative to coals; large fractions of the internal surfaces of coals are not penetrated by nitrogen molecules but are penetrated by carbon dioxide suggesting that the pores are mostly smaller than 1 nm.

• Research Organization: Brigham Young Univ., Provo, UT (USA)
• OSTI ID: 5975095
• Report Number(s): CONF-8809161-
• Journal Information: Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States), Journal Name: Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States) Vol. 33:3; ISSN ACFPA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
ADSORPTION
BITUMINOUS COAL
BLACK COAL
BROWN COAL
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHARS
COAL
CRYSTAL STRUCTURE
DATA
DENSITY
DISTRIBUTION
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
GASES
HELIUM
INFORMATION
LIGNITE
MAGNETIC RESONANCE
MATERIALS
MEASURING INSTRUMENTS
MICROSTRUCTURE
NITROGEN
NONMETALS
NUCLEAR MAGNETIC RESONANCE
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POROSIMETERS
POROSITY
PYROLYSIS PRODUCTS
RARE GASES
RESONANCE
SAMPLE PREPARATION
SIZE
SORPTION
SUBBITUMINOUS COAL
SURFACE AREA
SURFACE PROPERTIES