Rheology of coal slurries at process temperatures and pressures

Technical Report · Sat Jan 01 04:00:00 EST 1983

OSTI ID:6289915

Lee, D D; Gibson, M R; Sams, T L; Wilson, J H

In support of the SRC-I Demonstration Plant Project, rheological and density measurements have been made on recycle solvent and slurries made with Kentucky No. 9 coal at a 1.6 solvent-to-coal ratio. The measurements were made at temperatures of 300 to 758/sup 0/K and pressures of 0.1, 1.1, 7.0, and 17.3 MPa. Reaction-time effects were studied by changing the residence time in the preheater above a given temperature. Results show that the solvent behaved as a Newtonian fluid, while the slurry behaved in a non-Newtonian pseudoplastic manner dependent on temperature and reaction time. The viscosity of the slurry increased by over 100 times in the gel region at low reaction times. Also, the slurry density exhibited a more-rapid decrease with temperature in this gel region compared to the region before the reaction began.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6289915
• Report Number(s): CONF-830308-10; ON: DE83010141
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010600* -- Coal
Lignite
& Peat-- Properties & Composition
CARBONACEOUS MATERIALS
COAL
COAL LIQUEFACTION
DATA
DENSITY
DISPERSIONS
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUEL SLURRIES
FUELS
HIGH PRESSURE
HIGH TEMPERATURE
INFORMATION
LIQUEFACTION
MATERIALS
MEASURING INSTRUMENTS
MEDIUM PRESSURE
MEDIUM TEMPERATURE
MIXTURES
NUMERICAL DATA
ON-LINE MEASUREMENT SYSTEMS
ON-LINE SYSTEMS
ORGANIC SOLVENTS
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
RECYCLING
RHEOLOGY
SLURRIES
SOLVENTS
SRC PROCESS
SUSPENSIONS
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
VISCOSIMETERS