The investigation on the vapor-liquid phase equilibrium of (trifluoromethane + difluoromethane) system at temperatures ranging from (223.150 to 273.150) K

Xian Wang; Yanxing Zhao; Xueqiang Dong; Xiaoyu Yao; Maoqiong Gong; Jun Shen

doi:10.1016/j.jct.2019.105996

The investigation on the vapor-liquid phase equilibrium of (trifluoromethane + difluoromethane) system at temperatures ranging from (223.150 to 273.150) K

Xian Wang, Yanxing Zhao^*, Xueqiang Dong, Xiaoyu Yao, Maoqiong Gong, Jun Shen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

The trifluoromethane (R23) and difluoromethane (R32) are widely used in refrigeration and chemical industry. The isothermal vapor plus liquid equilibrium (VLE) data for the R23 plus R32 system were determined experimentally at six temperatures from 223.150 K to 273.150 K. Two models were employed to regress the experimental VLE data: Peng–Robinson (PR) equation of state with the one-parameter van der Waals (vdW) mixing rule; Peng–Robinson equation of state combined non-random two-liquid (NRTL) activity coefficient model with the modified Huron-Vidal two-order (MHV2) mixing rule. The maximum average absolute relative deviation of pressure (AARDp) and average absolute deviation of vapor phase mole fraction (AADy) for PR-vdW are 2.71% and 0.0175, respectively, while the maximum AARDp and AADy for PR-MHV2-NRTL are 1.53% and 0.0148, respectively.

Original language	English
Article number	105996
Journal	Journal of Chemical Thermodynamics
Volume	142
DOIs	https://doi.org/10.1016/j.jct.2019.105996
Publication status	Published - Jan 2020
Externally published	Yes

Keywords

Non-azeotropic
Refrigerants
Vapor liquid equilibrium (VLE)
difluoromethane (R32)
trifluoromethane (R23)

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10.1016/j.jct.2019.105996

Cite this

@article{e9bd8211e3f342bca86b84c06b933d8a,

title = "The investigation on the vapor-liquid phase equilibrium of (trifluoromethane + difluoromethane) system at temperatures ranging from (223.150 to 273.150) K",

abstract = "The trifluoromethane (R23) and difluoromethane (R32) are widely used in refrigeration and chemical industry. The isothermal vapor plus liquid equilibrium (VLE) data for the R23 plus R32 system were determined experimentally at six temperatures from 223.150 K to 273.150 K. Two models were employed to regress the experimental VLE data: Peng–Robinson (PR) equation of state with the one-parameter van der Waals (vdW) mixing rule; Peng–Robinson equation of state combined non-random two-liquid (NRTL) activity coefficient model with the modified Huron-Vidal two-order (MHV2) mixing rule. The maximum average absolute relative deviation of pressure (AARDp) and average absolute deviation of vapor phase mole fraction (AADy) for PR-vdW are 2.71% and 0.0175, respectively, while the maximum AARDp and AADy for PR-MHV2-NRTL are 1.53% and 0.0148, respectively.",

keywords = "Non-azeotropic, Refrigerants, Vapor liquid equilibrium (VLE), difluoromethane (R32), trifluoromethane (R23)",

author = "Xian Wang and Yanxing Zhao and Xueqiang Dong and Xiaoyu Yao and Maoqiong Gong and Jun Shen",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2020",

month = jan,

doi = "10.1016/j.jct.2019.105996",

language = "English",

volume = "142",

journal = "Journal of Chemical Thermodynamics",

issn = "0021-9614",

publisher = "Academic Press",

}

TY - JOUR

T1 - The investigation on the vapor-liquid phase equilibrium of (trifluoromethane + difluoromethane) system at temperatures ranging from (223.150 to 273.150) K

AU - Wang, Xian

AU - Zhao, Yanxing

AU - Dong, Xueqiang

AU - Yao, Xiaoyu

AU - Gong, Maoqiong

AU - Shen, Jun

PY - 2020/1

Y1 - 2020/1

N2 - The trifluoromethane (R23) and difluoromethane (R32) are widely used in refrigeration and chemical industry. The isothermal vapor plus liquid equilibrium (VLE) data for the R23 plus R32 system were determined experimentally at six temperatures from 223.150 K to 273.150 K. Two models were employed to regress the experimental VLE data: Peng–Robinson (PR) equation of state with the one-parameter van der Waals (vdW) mixing rule; Peng–Robinson equation of state combined non-random two-liquid (NRTL) activity coefficient model with the modified Huron-Vidal two-order (MHV2) mixing rule. The maximum average absolute relative deviation of pressure (AARDp) and average absolute deviation of vapor phase mole fraction (AADy) for PR-vdW are 2.71% and 0.0175, respectively, while the maximum AARDp and AADy for PR-MHV2-NRTL are 1.53% and 0.0148, respectively.

AB - The trifluoromethane (R23) and difluoromethane (R32) are widely used in refrigeration and chemical industry. The isothermal vapor plus liquid equilibrium (VLE) data for the R23 plus R32 system were determined experimentally at six temperatures from 223.150 K to 273.150 K. Two models were employed to regress the experimental VLE data: Peng–Robinson (PR) equation of state with the one-parameter van der Waals (vdW) mixing rule; Peng–Robinson equation of state combined non-random two-liquid (NRTL) activity coefficient model with the modified Huron-Vidal two-order (MHV2) mixing rule. The maximum average absolute relative deviation of pressure (AARDp) and average absolute deviation of vapor phase mole fraction (AADy) for PR-vdW are 2.71% and 0.0175, respectively, while the maximum AARDp and AADy for PR-MHV2-NRTL are 1.53% and 0.0148, respectively.

KW - Non-azeotropic

KW - Refrigerants

KW - Vapor liquid equilibrium (VLE)

KW - difluoromethane (R32)

KW - trifluoromethane (R23)

UR - http://www.scopus.com/inward/record.url?scp=85074468747&partnerID=8YFLogxK

U2 - 10.1016/j.jct.2019.105996

DO - 10.1016/j.jct.2019.105996

M3 - Article

AN - SCOPUS:85074468747

SN - 0021-9614

VL - 142

JO - Journal of Chemical Thermodynamics

JF - Journal of Chemical Thermodynamics

M1 - 105996

ER -

The investigation on the vapor-liquid phase equilibrium of (trifluoromethane + difluoromethane) system at temperatures ranging from (223.150 to 273.150) K

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The investigation on the vapor-liquid phase equilibrium of (trifluoromethane + difluoromethane) system at temperatures ranging from (223.150 to 273.150) K

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The investigation on the vapor-liquid phase equilibrium of (trifluoromethane + difluoromethane) system at temperatures ranging from (223.150 to 273.150) K