scholarly journals Liquid-liquid Equilibria for Quaternary System of Eugenol (1) + β-Caryophyllene (2) + 1-Propanol (3) + Water (4) at Temperatures 303.15, 313.15, and 323.15 K

2018 ◽  
Vol 156 ◽  
pp. 02001
Author(s):  
Irwan Hidayatulloh ◽  
Nurcahyo Nugroho ◽  
Gede Wibawa ◽  
Kuswandi Kuswandi
Keyword(s):  
Atmospheric Pressure ◽  
Quaternary System ◽  
Capillary Column ◽  
Equilibrium Composition ◽  
Mean Square ◽  
Mean Square Deviation ◽  
Liquid Equilibrium ◽  
Equilibrium Data ◽  
Temperature Controlled ◽  
Lle Data

In this work, the experimental liquid–liquid equilibrium (LLE) data were measured for quaternary mixtures of eugenol(1) + β–caryophyllene(2) + 1-propanol(3) + water(4) at temperatures 303.15, 313.15, and 323.15 K and at atmospheric pressure. The equilibrium data ware determined by using an equilibrium cell with temperature controlled. Quantitive analysis was performed by using gas chromatography (GC) equipped with thermal conductivity detector and capillary column Rtx-5. The experimental data were then correlated by using the NRTL and the UNIQUAC models. The reliability of these models were tested by compared with the experimental results using a root mean square deviation (RMSD). Based on the RMSD, the NRTL and the UNIQUAC models suited really well and give satisfactory result for the system of eugenol, β–caryophyllene, 1-propanol, and water with the average RMSD of the UNIQUAC and the NRTL models were 0.417% and 0.502%, respectively. Furthermore there was no significant effect of temperatures on the equilibrium composition for the system.

Liquid–liquid equilibrium data for the systems {LTTM+benzene+hexane} and {LTTM+ethyl acetate+hexane} at different temperatures and atmospheric pressure

2013 ◽  
Vol 360 ◽  
pp. 54-62 ◽  
Author(s):  
Agustin S.B. Gonzalez ◽  
María Francisco ◽  
Guillermo Jimeno ◽  
Sara Lago García de Dios ◽  
Maaike C. Kroon
Keyword(s):  
Ethyl Acetate ◽  
Atmospheric Pressure ◽  
Liquid Equilibrium ◽  
Equilibrium Data ◽  
Different Temperatures

scholarly journals Parameter Interaksi Biner Kesetimbangan Uap-Cair Campuran yang Melibatkan Alkohol Rantai Bercabang atau Aseton untuk Optimasi Proses Pemurnian Bioetanol

2019 ◽  
Vol 3 (2) ◽  
pp. 53 ◽  
Author(s):  
Asalil Mustain ◽  
Khalimatus Sa'diyah ◽  
Agung Ari Wibowo ◽  
Dhoni Hartanto
Keyword(s):  
Root Mean Square ◽  
Root Mean Square Deviation ◽  
Interaction Parameters ◽  
Binary Interaction ◽  
Mean Square ◽  
Mean Square Deviation ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Binary Interaction Parameters ◽  
Vapor Liquid

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.

(Liquid + Liquid) Equilibrium for Ternary System of (Water + Phenol + Cyclohexane) at T = 298.2 K

2013 ◽  
Vol 3 (2) ◽  
pp. 75-84
Author(s):  
Hossein Ghanadzadeh ◽  
Milad Sangashekan ◽  
Shahin Asan
Keyword(s):  
Ternary System ◽  
Root Mean Square ◽  
Atmospheric Pressure ◽  
Distribution Coefficients ◽  
Mean Square ◽  
Liquid Equilibrium ◽  
Separation Factors ◽  
Experimental Solubility ◽  
Tie Line

Experimental solubility curves and tie-line data for the (water + phenol + 2-ethyl-1-hexanol) system was obtained at T = 298.2 K and atmospheric pressure. The tie-line data was determined by techniques karl-fischer and refractometry. This ternary system exhibits type-2 behavior of LLE. Distribution coefficients and separation factors were measured to evaluate the extracting ability of the solvent. The consistency of the experimental tie-line data was determined through the Othmer–Tobias and Bachman equations. The data were correlated with the NRTL (a = 0.25) and UNIQUAC models and the parameters estimated present root mean square deviations below 0.50%.

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