Vapor-liquid equilibria for the binary system of 1,1-difluoroethane (HFC-152a) + n-butane (R-600) at various temperatures

Lim, Jong Sung; Seong, Gimyeong; Byun, Hun-Soo

doi:10.1016/j.fluid.2007.07.010

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Vapor-liquid equilibria for the binary system of 1,1-difluoroethane (HFC-152a) + n-butane (R-600) at various temperatures

Lim, Jong Sung;
Seong, Gimyeong;
Byun, Hun-Soo

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26

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27

초록

Isothermal vapor-liquid equilibrium data for the binary systems of 1,1-difluoroethane (HFC-152a) + n-butane were measured at 273.15, 283.15, 293.15, 303.15, 313.15 and 323.15 K, respectively. The experiments were carried out using a circulation-type equilibrium apparatus to measure temperature, pressure, and the compositions of the liquid and vapor phases. The experimental data were correlated with the Peng-Robinson equation of state (EOS) using the Wong-Sandler mixing rules and the Camahan-Starling-De Santis equation of state (CSD EOS). Calculated results showed good agreement with experimental data. It was found that this system has very strong positive azeotropes for all the temperature ranges studied here. (C) 2007 Elsevier B.V. All rights reserved.

키워드

n-Butane (R-600); HFC-152a; vapor-liquid equilibria (VLE); carnahan-Staring-De Santis equation of state (CSD EOS); Peng-Robinson equation of state (PR EOS); ALTERNATIVE REFRIGERANT MIXTURES; 1,1,1-TRIFLUOROETHANE (HFC-143A)+1,1,1,2-TETRAFLUOROETHANE HFC-134A; PHASE-EQUILIBRIA; PENTAFLUOROETHANE HFC-125; MIXING RULE; STATE; EQUATION; ISOBUTANE; HFC-227EA; PRESSURE

제목: Vapor-liquid equilibria for the binary system of 1,1-difluoroethane (HFC-152a) + n-butane (R-600) at various temperatures

저자: Lim, Jong Sung; Seong, Gimyeong; Byun, Hun-Soo

DOI: 10.1016/j.fluid.2007.07.010

발행일: 2007-10-15

유형: Article

저널명: Fluid Phase Equilibria

권: 259

호: 2

페이지: 165 ~ 172