Vapor–Liquid Equilibrium Prediction of Refrigerant Mixtures with Peng–Robinson Equation of State and Binary Interaction Parameters Calculated Through Group Contribution Model

Parameter interaksi biner kesetimbangan uap-cair campuran yang melibatkan alkohol rantai bercabang atau aseton telah ditentukan pada penelitian ini. Data kesetimbangan uap-cair kondisi isobarik pada tekanan atmosferik telah dipilih total sebanyak 14 sistem. Data kesetimbangan tersebut kemudian dikorelasikan dengan model koefisien aktifitas Wilson, Non-Random Two-Liquid (NRTL) dan Universal Quasi-Chemical (UNIQUAC) untuk diperoleh parameter interaksi binernya. Parameter tersebut ditentukan sebagai fungsi suhu pada penelitian ini untuk meningkatkan kemampuannya dalam aplikasi pada kisaran suhu yang panjang. Korelasi menunjukkan hasil yang baik dikarenakan root mean square deviation (RMSD) antara data eksperimental dengan hasil perhitungan relatif kecil. Sebagai tambahan, perilaku masing-masing sistem biner tersebut juga diamati pada kesempatan ini. Parameter yang diperoleh dapat digunakan untuk optimasi desain kolom distilasi pada proses pemurnian produksi bioetanol.The binary interaction parameters of vapor-liquid equilibrium for the mixtures involving branched-chain higher alcohols or acetone have been determined in this study. Isobaric vapor-liquid equilibrium data at atmospheric pressure have been selected for a total of 14 systems. The VLE data were then correlated with the Wilson, Non-Random Two-Liquid (NRTL) and Universal Quasi-Chemical (UNIQUAC) activity coefficient models to obtain its binary interaction parameters. The parameters were determined as the temperature-dependent in this study to increase its ability in wide temperature range applications. The correlations showed good results because the root mean square deviation (RMSD) between the experimental data and calculation values were relatively low. In addition, the behavior of each binary systems were also observed in this study. The obtained parameters could be used to optimize the distillation column design in the purification process of bioethanol production.

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Binary interaction parameters of CO2−heavy-n-alkanes systems by using Peng–Robinson equation of state with modified alpha function

Fluid Phase Equilibria ◽

10.1016/j.fluid.2016.02.016 ◽

2016 ◽

Vol 417 ◽

pp. 77-86 ◽

Cited By ~ 17

Author(s):

Xiaoli Li ◽

Daoyong Yang ◽

Xuechao Zhang ◽

Guangqing Zhang ◽

Junmin Gao

Keyword(s):

Equation Of State ◽

Interaction Parameters ◽

Binary Interaction ◽

Binary Interaction Parameters ◽

Robinson Equation ◽

Alpha Function

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Generalization of binary interaction parameters of Peng-Robinson equation of state for systems containing hydrogen

Fluid Phase Equilibria ◽

10.1016/0378-3812(90)85094-q ◽

1990 ◽

Vol 56 ◽

pp. 81-88 ◽

Cited By ~ 6

Author(s):

Hideo Nishiumi ◽

Hironobu Gotoh

Keyword(s):

Equation Of State ◽

Interaction Parameters ◽

Binary Interaction ◽

Binary Interaction Parameters ◽

Robinson Equation

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PARAMETER INTERAKSI BINER KESETIMBANGAN UAP-CAIR CAMPURAN ALKOHOL UNTUK OPTIMASI PROSES PEMURNIAN BIOETANOL

Jurnal Bahan Alam Terbarukan ◽

10.15294/jbat.v4i2.5126 ◽

2017 ◽

Vol 5 (2) ◽

pp. 37-44 ◽

Cited By ~ 3

Author(s):

Asalil Mustain ◽

Anang Takwanto ◽

Dhoni Hartanto

Keyword(s):

Interaction Parameters ◽

Binary Interaction ◽

Primary Alcohols ◽

Liquid Equilibrium ◽

Vapor Liquid Equilibrium ◽

Temperature Function ◽

Wide Range ◽

Equilibrium Data ◽

Binary Interaction Parameters ◽

Vapor Liquid

In this work, the binary interaction parameters of vapor-liquid equilibrium for the mixtures of primary alcohols (methanol, ethanol, 1-propanol or 1-butanol) with C5 alcohols were obtained. A total of 15 systems that consisted of isobaric vapor-liquid equilibrium data at atmospheric pressure were selected. The binary interaction parameters were determined as temperature function by correlating the selected vapor-liquid equilibrium data using the Wilson, Non-Random Two-Liquid (NRTL) and Universal Quasi-Chemical (UNIQUAC) activity coefficient models. The binary interaction parameters were described as the temperature-dependent to increase the capability of the parameters for the application in wide range of temperature. The correlation showed good results because the root mean square deviation (RMSD) between the calculation values and experimental data were relatively low. The obtained parameters were very useful for optimizing the distillation column in the bio-ethanol purification process.

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