TY - JOUR
T1 - Vapor-liquid equilibria for binary systems carbon dioxide + 1,1,1,2,3,3-hexafluoro-3-(2,2,2-trifluoroethoxy)propane or 1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane at 303.15–323.15 K
AU - Matsuda, Hiroyuki
AU - Suga, Toru
AU - Tsuji, Tomoya
AU - Tochigi, Katsumi
AU - Kurihara, Kiyofumi
AU - Nelson, Alyssa K.
AU - McCabe, Clare
N1 - Funding Information:
We thank Mr. TT, YN, and KS of the Department of Materials and Applied Chemistry, Nihon University, for assistance with VLE measurements. AKN and CMC also gratefully acknowledge financial support from the National Science Foundation under grant CBET-1805126 .
Funding Information:
We thank Mr. TT, YN, and KS of the Department of Materials and Applied Chemistry, Nihon University, for assistance with VLE measurements. AKN and CMC also gratefully acknowledge financial support from the National Science Foundation under grant CBET-1805126.
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/12/1
Y1 - 2020/12/1
N2 - The phase behavior of binary mixtures of carbon dioxide (CO2) and hydrofluoroethers (HFEs) has been studied. In particular, experimental vapor-liquid equilibrium (VLE) data for CO2 + 1,1,1,2,3,3-hexafluoro-3-(2,2,2-trifluoroethoxy)propane (HFE-449mec-f) and 1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane (HFE-7200) at temperatures of 303.15, 313.15, and 323.15 K are reported. The VLE data were measured using a static-type apparatus and then correlated using the Peng-Robinson equation of state with the van der Waals one fluid and Wong-Sandler-NRTL mixing rules. Reasonable correlation results were obtained from the Peng-Robinson equation of state with both the van der Waals one fluid and the Wong-Sandler-NRTL mixing rules. The GC-SAFT-VR equation also gave good predictions of the phase behavior. Additionally, the group contribution SAFT-VR (GC-SAFT-VR) equation was used to predict the experimental VLE in good agreement with the experimental data, as well as the full p,T phase diagram for both systems.
AB - The phase behavior of binary mixtures of carbon dioxide (CO2) and hydrofluoroethers (HFEs) has been studied. In particular, experimental vapor-liquid equilibrium (VLE) data for CO2 + 1,1,1,2,3,3-hexafluoro-3-(2,2,2-trifluoroethoxy)propane (HFE-449mec-f) and 1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane (HFE-7200) at temperatures of 303.15, 313.15, and 323.15 K are reported. The VLE data were measured using a static-type apparatus and then correlated using the Peng-Robinson equation of state with the van der Waals one fluid and Wong-Sandler-NRTL mixing rules. Reasonable correlation results were obtained from the Peng-Robinson equation of state with both the van der Waals one fluid and the Wong-Sandler-NRTL mixing rules. The GC-SAFT-VR equation also gave good predictions of the phase behavior. Additionally, the group contribution SAFT-VR (GC-SAFT-VR) equation was used to predict the experimental VLE in good agreement with the experimental data, as well as the full p,T phase diagram for both systems.
KW - Carbon dioxide
KW - Correlation
KW - GC-SAFT-VR
KW - Group contribution
KW - HFE-449mec-f
KW - HFE-7200
KW - Hydrofluoroether
KW - Vapor-liquid equilibria
UR - http://www.scopus.com/inward/record.url?scp=85091816613&partnerID=8YFLogxK
U2 - 10.1016/j.fluid.2020.112814
DO - 10.1016/j.fluid.2020.112814
M3 - Article
AN - SCOPUS:85091816613
SN - 0378-3812
VL - 524
JO - Fluid Phase Equilibria
JF - Fluid Phase Equilibria
M1 - 112814
ER -