Saturated liquid densities and bubble point pressures of the ternary HCFC-22/HFC-152a/HCFC-142b system

Yukishige Maezawa, Januarius V. Widiatmo, Haruki Sato, Koichi Watanabe

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Maezawa, Y., Widiatmo, J.V., Sato, H. and Watanabe, K., 1991. Saturated liquid densities and bubble point pressures of the ternary HCFC-22/HFC-152a/HCFC-142b system. Fluid Phase Equilibria, 67: 203-212. Seventy-one data points for the saturated liquid density and bubble point pressure of the ternary system HCFC-22/HFC-152a/HCFC-142b were measured by a magnetic densimeter coupled with a variable-volume cell. The results of six different compositions of 20/20/60, 20/40/40, 20/60/20, 40/20/40, 40/40/20 and 60/20/20 wt.% cover a range of temperatures from 280 to 390 K. The experimental uncertainties in temperature, pressure, density and composition were estimated to be not greater than ±15 mK, ±20 kPa, ±0.2%, and between -0.17 and +0.01 wt.% HCFC-22 (between -0.12 and +0.06 wt.% HFC-152a and between -0.01 and +0.11 wt.% HCFC-142b) respectively. The purity of the samples was 99.97 wt.% for HCFC-22, 99.9 wt.% for HFC-152a and 99.8 wt.% for HCFC-142b. The bubble point pressures were reproduced satisfactorily well by the Peng-Robinson equation of state with the optimum binary interaction parameters, i.e. temperature-dependent k13 and k23, and temperature-independent k12. The saturated liquid densities were reproduced reasonably well by the Hankinson-Brobst-Thomson equation with the optimum temperature-independent binary interaction parameters, k12, k13, k23, l12, l13 and l23.

Original languageEnglish
Pages (from-to)203-212
Number of pages10
JournalFluid Phase Equilibria
Volume67
Issue numberC
DOIs
Publication statusPublished - 1991 Nov 15

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Density of liquids
bubbles
liquids
Temperature
temperature
densimeters
Ternary systems
ternary systems
Chemical analysis
Equations of state
Phase equilibria
purity
equations of state
interactions
Fluids
fluids
cells

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Physical and Theoretical Chemistry

Cite this

Saturated liquid densities and bubble point pressures of the ternary HCFC-22/HFC-152a/HCFC-142b system. / Maezawa, Yukishige; Widiatmo, Januarius V.; Sato, Haruki; Watanabe, Koichi.

In: Fluid Phase Equilibria, Vol. 67, No. C, 15.11.1991, p. 203-212.

Research output: Contribution to journalArticle

Maezawa, Yukishige ; Widiatmo, Januarius V. ; Sato, Haruki ; Watanabe, Koichi. / Saturated liquid densities and bubble point pressures of the ternary HCFC-22/HFC-152a/HCFC-142b system. In: Fluid Phase Equilibria. 1991 ; Vol. 67, No. C. pp. 203-212.
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abstract = "Maezawa, Y., Widiatmo, J.V., Sato, H. and Watanabe, K., 1991. Saturated liquid densities and bubble point pressures of the ternary HCFC-22/HFC-152a/HCFC-142b system. Fluid Phase Equilibria, 67: 203-212. Seventy-one data points for the saturated liquid density and bubble point pressure of the ternary system HCFC-22/HFC-152a/HCFC-142b were measured by a magnetic densimeter coupled with a variable-volume cell. The results of six different compositions of 20/20/60, 20/40/40, 20/60/20, 40/20/40, 40/40/20 and 60/20/20 wt.{\%} cover a range of temperatures from 280 to 390 K. The experimental uncertainties in temperature, pressure, density and composition were estimated to be not greater than ±15 mK, ±20 kPa, ±0.2{\%}, and between -0.17 and +0.01 wt.{\%} HCFC-22 (between -0.12 and +0.06 wt.{\%} HFC-152a and between -0.01 and +0.11 wt.{\%} HCFC-142b) respectively. The purity of the samples was 99.97 wt.{\%} for HCFC-22, 99.9 wt.{\%} for HFC-152a and 99.8 wt.{\%} for HCFC-142b. The bubble point pressures were reproduced satisfactorily well by the Peng-Robinson equation of state with the optimum binary interaction parameters, i.e. temperature-dependent k13 and k23, and temperature-independent k12. The saturated liquid densities were reproduced reasonably well by the Hankinson-Brobst-Thomson equation with the optimum temperature-independent binary interaction parameters, k12, k13, k23, l12, l13 and l23.",
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