Measurement and prediction of low-rank coal slag viscosity

Conference · Mon Aug 01 04:00:00 EDT 1983 · Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States)

OSTI ID:7089575

Streeter, R C; Diehl, E K; Schobert, M M

Since 1980, Bituminous Coal Research, Inc., (BCR) has been conducting measurements on the viscosity of western U.S. low-rank coal slags under a contract with the Grand Forks Energy Technology Center (GFETC), U.S. Department of Energy. This work has been motivated by the realization that very few data exist in the literature on the viscosity of low-rank-coal slags; published correlations relating slag viscosity to coal ash composition were derived from work with bituminous-coal slags, and attempts to apply them to data from low-rank coal slags generally have been unsuccessful; and, from a practical standpoint, data on slag rheology are of considerable interest in support of the operation of a slagging fixed-bed lignite gasifier at GFETC. As a matter of related interest, BCR's slag viscometer was originally put into operation in 1976 to obtain data on the slagging properties of coals intended for use in the BI-GAS coal gasification pilot plant at Homer City, Pennsylvania; the BI-GAS process incorporates an entrained-bed, slagging gasifier. Although the data obtained in these studies have been valuable in interpreting the slagging phenomena observed in the Grand Forks gasifier tests, a more fundamental objective of the current work is to develop correlations that can be used to predict a priori the viscosity behavior of low-rank-coal slags from a knowledge of the ash or slag composition.

• Research Organization: Bituminous Coal Research, Inc., Monroeville, PA
• OSTI ID: 7089575
• Report Number(s): CONF-830814-
• Conference Information: Journal Name: Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States) Journal Volume: 28:4
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
ASHES
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CHEMICAL COMPOSITION
COAL
COAL DEPOSITS
COAL RANK
CORRELATIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
MATERIALS
MATERIALS TESTING
MINERAL RESOURCES
NATIONAL ORGANIZATIONS
NORTH AMERICA
RESEARCH PROGRAMS
RESIDUES
RESOURCES
SLAGS
TEMPERATURE MEASUREMENT
TESTING
US DOE
US ORGANIZATIONS
USA
VISCOSITY