Density changes in supercritical solvent + hydrocarbon solute binary mixtures
- Univ. of Calgary, Alberta (Canada). Dept. of Chemical and Petroleum Engineering
In this work, densities of supercritical carbon dioxide and ethane containing naphthalene and octacosane were measured with a high-pressure vibrating tube densitometer. The measurements were carried out at temperatures of 308.2 and 318.2 K and pressures up to 20 MPa. A single-pass flow system is used in which the solid solute is continuously extracted with the supercritical fluid. The concentration of the extracted solute in the mixture is determined by depressurizing the solution and dissolving the solute in toluene. Densities were obtained for both saturated and unsaturated mixtures. Solubility and density data were obtained for the system carbon dioxide + naphthalene and compared to literature data. In addition, data were obtained for the systems carbon dioxide + octacosane and ethane + octacosane. The densities obtained were correlated using the Peng-Robinson equation of state to within 5% standard error.
- OSTI ID:
- 6086323
- Journal Information:
- Journal of Chemical and Engineering Data, Vol. 44:5; ISSN 0021-9568
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CARBON DIOXIDE
DENSITY
EQUATIONS OF STATE
ETHANE
NAPHTHALENE
SOLUBILITY
SUPERCRITICAL GAS EXTRACTION
ALKANES
AROMATICS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CONDENSED AROMATICS
EQUATIONS
EXTRACTION
HYDROCARBONS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SEPARATION PROCESSES
SOLVENT EXTRACTION
320303* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Equipment & Processes