Experimental support for coal conversion demonstration projects at the Oak Ridge National Laboratory: preheater rheology, slurry mixing, and vacuum bottoms viscosity
The Oak Ridge National Laboratory has carried out a major support role in the area of thermophysical properties since 1978. From the outset, the emphasis has been on obtaining data on real coal liquids at process conditions of temperature and pressure. The results of rheology (viscosity and density) measurements of reacting mixtures under conditions similar to those of the SRC preheaters are presented, emphasizing the effects of the measured non-Newtonian behavior on design. Data obtained on mixing coal and process solvent up to 500/sup 0/K (450/sup 0/F) will be discussed, emphasizing its impact on thermal efficiency of the SRC processes. Finally, design and initial operation of a unique instrument to measure the viscosity on-line of streams containing up to 55% solids will be discussed.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5752319
- Report Number(s):
- CONF-811108-11; ON: DE82004106
- Resource Relation:
- Conference: Annual meeting of the Institute of Chemical Engineers, New Orleans, LA, USA, 8 Nov 1981
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COAL LIQUIDS
DENSITY
RHEOLOGY
VISCOSITY
SLURRIES
MIXING
COAL LIQUEFACTION
COAL LIQUEFACTION PLANTS
ON-LINE MEASUREMENT SYSTEMS
PILOT PLANTS
SOLVENTS
DISPERSIONS
FLUIDS
FUNCTIONAL MODELS
INDUSTRIAL PLANTS
LIQUEFACTION
LIQUIDS
MIXTURES
ON-LINE SYSTEMS
PHYSICAL PROPERTIES
SUSPENSIONS
THERMOCHEMICAL PROCESSES
010600* - Coal
Lignite
& Peat- Properties & Composition
010405 - Coal
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& Peat- Hydrogenation & Liquefaction