Vapor−Liquid Equilibria of the Difluoromethane + Dimethyl Ether and 1,1,1,2-Tetrafluoroethane + Dimethyl Ether Systems
- Jihoon Im
- ,
- Gangwon Lee
- , and
- Hwayong Kim
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School of Chemical & Biological Engineering & Institute of Chemical Processes, Seoul National University, Shinlim-dong, Gwanak-gu, Seoul 151-744, Korea
Abstract
Binary vapor−liquid equilibrium data were measured for the difluoromethane (HFC-32) + dimethyl ether (DME) and 1,1,1,2-tetrafluoroethane (HFC-134a) + dimethyl ether (DME) systems at temperature from (313.15 to 343.15) K. These experiments were carried out with a circulating-type apparatus with on-line gas chromatography. The experimental data were correlated well by Peng−Robinson equation of state using the Wong−Sandler mixing rules.
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Corresponding author. Fax: +82-2-888-6695. E-mail: hwayongk@ snu.ac.kr.
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