Binary mixture isothermal vapour-liquid equilibrium: Trifluoromethane (R23) + octafluoropropane (R218) at the temperature from 223.150 K to 263.150 K

Yunxiao Wang, Xian Wang, Yanxing Zhao*, Maoqiong Gong, Xiaoyu Yao, Xueqiang Dong

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The mixed-refrigerant Joule-Thomson refrigerator (MJTR) is simple in structure, safe and reliable, and is suitable for temperatures from 80 to 230 K. Trifluoromethane (R23) and octafluoropropane (R218) are satisfactory as non-flammable refrigerants in MJTR. In this paper, the gas-phase single-cycle method was used to conduct a vapor–liquid equilibrium (VLE) experiment on the R23 + R218 binary system in the temperature range from 223.150 K to 263.150 K. The VLE experimental data were correlated using the Peng-Robinson (PR) equation of state and the Huron-Vidal (HV) mixing rule combined with non-random two-liquid (NRTL) activity coefficient model. The maximum average absolute relative deviation of pressure (AARDp) and the maximum average absolute deviation of vapor phase composition (AADy) are 0.67% and 0.005, respectively.

Original languageEnglish
Article number106567
JournalJournal of Chemical Thermodynamics
Volume162
DOIs
Publication statusPublished - Nov 2021
Externally publishedYes

Keywords

  • Non-azeotropic
  • Non-flammable refrigerants
  • Octafluoropropane (R218)
  • Trifluoromethane (R23)
  • Vapor liquid equilibrium (VLE)

Fingerprint

Dive into the research topics of 'Binary mixture isothermal vapour-liquid equilibrium: Trifluoromethane (R23) + octafluoropropane (R218) at the temperature from 223.150 K to 263.150 K'. Together they form a unique fingerprint.

Cite this