Thermodynamic and rheological properties of solid-liquid systems in coal processing. Quarterly technical report: March 1, 1993 to May 31, 1993
- North Carolina A and T State Univ., Greensboro, NC (United States). Dept. of Chemical Engineering
The viscosity of coal derived liquids is an important property that is required for the design of the coal liquefaction processes, as well as for understanding the flow characteristics of coal liquids. Coal liquids are complex undefined mixtures and boil over a wide range of temperatures. One method of characterizing coal liquids is to treat coal liquids as a continuous distribution of molecular weights. Upon review of the literature for viscosity correlations, the authors quickly concluded that there is no accurate method available that may be successfully applied to coal liquids. They generally believe that correlations based on molecular structure of materials are superior to those that use solely the characterization parameters such as refractive index, critical properties, density, boiling points etc. A few correlations in the literature do consider molecular structures in viscosity determinations. Using important features in these correlations, they set out to develop a new viscosity correlation that would apply to model coal aromatic compounds, their mixtures and finally to coal derived liquids themselves. The correlation for pure compounds and mixtures has been developed and is discussed below. Attempts are now being made to apply this to coal derived liquids.
- Research Organization:
- North Carolina Agricultural and Technical State Univ., Greensboro, NC (United States). Dept. of Chemical Engineering
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-91PC91300
- OSTI ID:
- 10194978
- Report Number(s):
- DOE/PC/91300-T6; ON: DE94003297; TRN: AHC29315%%10
- Resource Relation:
- Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
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