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In relation to this article, we declare that there is no conflict of interest.
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Received February 26, 2010
Accepted March 10, 2010
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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High pressure isothermal vapor-liquid equilibria for the binary system of carbon dioxide (CO2)+1,1,1-trifluoroethane (R-143a)

Department of Chemical and Biomolecular Engineering, Sogang University, C.P.O. Box 1142, Seoul 100-611, Korea
limjs@sogang.ac.kr
Korean Journal of Chemical Engineering, November 2010, 27(6), 1887-1891(5), 10.1007/s11814-010-0293-5
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Abstract

Isothermal vapor-liquid equilibrium data for the binary mixture of carbon dioxide (CO2)+1,1,1-trifluoroethane (HFC-143a) were measured within the temperature range of 273.15-333.15 K. The data in the two-phase region were measured by using a circulation-type equilibrium apparatus in which both vapor and liquid phases are continuously recirculated. The experimental data were correlated with the Peng-Robinson equation of state (PR-EOS) using the Wong-Sandler mixing rules combined with the NRTL excess Gibbs free energy model. The values calculated by the PR EOS with the W-S mixing rules show good agreement with our experimental data.

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