TY - JOUR
T1 - VLE property measurements and PC-SAFT/ CP- PC-SAFT/ E-PPR78 modeling of the CO2 + n-tetradecane mixture
AU - Khairutdinov, Vener F.
AU - Gumerov, Farid M.
AU - Khabriev, Ilnar Sh
AU - Akhmetzyanov, Talgat R.
AU - Salikhov, Ilfat Z.
AU - Polishuk, Ilya
AU - Abdulagatov, Ilmutdin M.
N1 - Publisher Copyright:
© 2022
PY - 2023/1
Y1 - 2023/1
N2 - This paper presents a new experimental VLE property data in the binary system of carbon dioxide – n-tetradecane at three selected isotherms of 313.15 K, 333.15 K, and 353.15 K in the pressure range from (3.8 to 19.0) MPa. The measurements were made using a high-temperature and high-pressure optical cell. The standard absolute u and relativeur uncertainties of temperature, pressure, concentration measurements are: u(T)=7.5 mK; ur(P)=0.00025; ur(x)=0.015; and ur(y)=0.015. The measured VLE data were used to determine the criticalPC-TC curve data. Based on the derived values of the critical parameters of CO2+n-tetradecane mixture the value (-67.58 MPa) of the Krichevskii parameter has been determined. The predictive capabilities of the perturbed chain-statistical associating fluid theory (PC-SAFT), the critical point-based modification of PC-SAFT (CP-PC-SAFT), and the Enhanced-Predictive-Peng-Robinson-78 (E-PPR78) models were examined.
AB - This paper presents a new experimental VLE property data in the binary system of carbon dioxide – n-tetradecane at three selected isotherms of 313.15 K, 333.15 K, and 353.15 K in the pressure range from (3.8 to 19.0) MPa. The measurements were made using a high-temperature and high-pressure optical cell. The standard absolute u and relativeur uncertainties of temperature, pressure, concentration measurements are: u(T)=7.5 mK; ur(P)=0.00025; ur(x)=0.015; and ur(y)=0.015. The measured VLE data were used to determine the criticalPC-TC curve data. Based on the derived values of the critical parameters of CO2+n-tetradecane mixture the value (-67.58 MPa) of the Krichevskii parameter has been determined. The predictive capabilities of the perturbed chain-statistical associating fluid theory (PC-SAFT), the critical point-based modification of PC-SAFT (CP-PC-SAFT), and the Enhanced-Predictive-Peng-Robinson-78 (E-PPR78) models were examined.
KW - CO+n-tetradecane mixture
KW - Critical curve
KW - Equation of state
KW - Krichevskii parameter
KW - Phase diagram
KW - Supercritical solvent
KW - VLE measurements
UR - http://www.scopus.com/inward/record.url?scp=85138450169&partnerID=8YFLogxK
U2 - 10.1016/j.fluid.2022.113615
DO - 10.1016/j.fluid.2022.113615
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AN - SCOPUS:85138450169
SN - 0378-3812
VL - 564
JO - Fluid Phase Equilibria
JF - Fluid Phase Equilibria
M1 - 113615
ER -