Enthalpy and phase behavior of coal derived liquid mixtures: Technical progress report for the period January-March 1987. [M-cresol/quinoline/tetralin ternary mixture]
On July 15, 1984, work was initiated on a program to study the enthalpy and phase behavior of coal derived liquid model compound mixtures. The objectives of this program are to study the enthalpy and phase behavior of a selected ternary model compound system, representative of interactions present in coal derived liquids. Measurements will be made in a Freon 11 reference fluid boil-off calorimeter, and an equilibrium flash vaporization apparatus. These experimental systems have already been developed. Previous studies have indicated that existing data and correlations developed for petroleum fluids are not applicable to coal derived liquids. This is due to the presence of significant concentrations of polar associating heteroatomics in the predominantly aromatic coal liquids. Thus, the ternary system will include an aromatic, a basic nitrogen compound, and a cresol. It is presently planned to study the m-cresol/quinoline/tetralin ternary mixture. Measurements will be made over a wide range of temperature (200 to 750/sup 0/F) and pressure (20 to 1500 psia), for the three pure compounds, the three binary mixtures and selected compositions of the ternary. Both enthalpy and phase behavior measurements will be made. This set of data will be useful as a standard for fitting and evaluating thermodynamic correlations and equations of state that are applicable to associating fluid mixtures, and thus to coal derived liquids. In particular we will attempt to fit both the enthalpy and phase behavior data with a single equation of state using local composition mixing rules and common interaction parameters. During the eleventh quarter, enthalpy measurements have been obtained for the ternary mixtures of m-cresol/quinoline/tetralin with molar ratios 2/3:1/6:1/6 and 1/6:2/3:1/6 m-cresol:quinoline:tetralin. The results are presented in Appendix A. The project has progressed very will during this quarter, and the enthalpy measurements have been completed. 2 refs., 2 figs., 2 tabs.
- Research Organization:
- Colorado School of Mines, Golden (USA). Dept. of Chemical Engineering and Petroleum Refining
- DOE Contract Number:
- FG22-84PC70006
- OSTI ID:
- 6625010
- Report Number(s):
- DOE/PC/70006-9-4/87; ON: DE87008694
- Country of Publication:
- United States
- Language:
- English
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Enthalpy and phase behavior of coal derived liquid mixtures: Technical progress report for the period July-September 1987
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010600* -- Coal
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
AROMATICS
AZAARENES
AZINES
COAL LIQUIDS
CORRELATIONS
CRESOLS
DATA
DISPERSIONS
ENTHALPY
EQUATIONS
EQUATIONS OF STATE
EQUILIBRIUM
EXPERIMENTAL DATA
FLUIDS
GASES
HETEROCYCLIC COMPOUNDS
HIGH PRESSURE
HIGH TEMPERATURE
HYDROCARBONS
HYDROXY COMPOUNDS
INFORMATION
LIQUIDS
MEDIUM PRESSURE
MEDIUM TEMPERATURE
MIXTURES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHASE STUDIES
PHENOLS
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
PYRIDINES
QUINOLINES
RESEARCH PROGRAMS
STRUCTURAL MODELS
TEMPERATURE DEPENDENCE
TETRALIN
THERMODYNAMIC PROPERTIES
VAPORS