Effect of temperature, sample size and gas flow rate on drying of Beulah-Zap lignite and Wyodak subbituminous coal

Conference · Fri Jan 01 00:00:00 EST 1993

OSTI ID:6687119

Vorres, K S

Beulah-Zap lignite and Wyodak-Anderson ([minus]100 and [minus]20 mesh from the Argonne Premium Coal Sample Program) were dried in nitrogen under various conditions of temperature (20--80[degree]C), gas flow rates (20--160 cc/min), and sample sizes (20--160 mg). An equation relating the initial drying rate in the unimolecular mechanism was developed to relate the drying rate and these three variables over the initial 80--85% of the moisture loss for the lignite. The behavior of the Wyodak-Anderson subbituminous coal is very similar to that of the lignite. The nitrogen BET surface area of the subbituminous sample is much larger than the lignite.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6687119
• Report Number(s): ANL/CHM/CP-78106; CONF-930304-9; ON: DE93008663
• Resource Relation: Conference: 205. American Chemical Society national meeting, Denver, CO (United States), 28 Mar - 2 Apr 1993
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
LIGNITE
DRYING
SUBBITUMINOUS COAL
FLOW RATE
PARTICLE SIZE
SURFACE AREA
TEMPERATURE EFFECTS
BROWN COAL
CARBONACEOUS MATERIALS
COAL
ENERGY SOURCES
FOSSIL FUELS
FUELS
MATERIALS
SIZE
SURFACE PROPERTIES
010600* - Coal
Lignite
& Peat- Properties & Composition
010300 - Coal
Lignite
& Peat- Preparation- (1987-)