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Title: Density changes in supercritical solvent + hydrocarbon solute binary mixtures

Abstract

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.

Authors:
;  [1]
  1. Univ. of Calgary, Alberta (Canada). Dept. of Chemical and Petroleum Engineering
Publication Date:
OSTI Identifier:
697124
Resource Type:
Journal Article
Journal Name:
Journal of Chemical and Engineering Data
Additional Journal Information:
Journal Volume: 44; Journal Issue: 5; Other Information: PBD: Sep-Oct 1999
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; SUPERCRITICAL GAS EXTRACTION; CARBON DIOXIDE; DENSITY; ETHANE; NAPHTHALENE; SOLUBILITY; EQUATIONS OF STATE

Citation Formats

Kalaga, A., and Trebble, M. Density changes in supercritical solvent + hydrocarbon solute binary mixtures. United States: N. p., 1999. Web. doi:10.1021/je990029m.
Kalaga, A., & Trebble, M. Density changes in supercritical solvent + hydrocarbon solute binary mixtures. United States. doi:10.1021/je990029m.
Kalaga, A., and Trebble, M. Wed . "Density changes in supercritical solvent + hydrocarbon solute binary mixtures". United States. doi:10.1021/je990029m.
@article{osti_697124,
title = {Density changes in supercritical solvent + hydrocarbon solute binary mixtures},
author = {Kalaga, A. and Trebble, M.},
abstractNote = {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.},
doi = {10.1021/je990029m},
journal = {Journal of Chemical and Engineering Data},
number = 5,
volume = 44,
place = {United States},
year = {1999},
month = {9}
}