Untersuchungen über das Dampf‐Flüssigkeits‐Phasengleichgewicht des Systems n‐Hexan/Methylcyclopentan/Benzol bei 60°C unter Verwendung einer gaschromatographischen Analysenmethode

Abstract

Es werden die Ergebnisse von Phasengleichgewichtsmessungen am genannten System bei einer Schnittemperatur von 60,0°C mitgeteilt. Unter Anwendung der von Schuberth in(2) dargelegten Vorausberechnung isothermer Phasengleichgewichtsdaten für spezielle ternäre Systeme vom Typ S1/S2/L0 auf das in Rede stehende System kann eine Überprüfung der Meßdaten auf thermodynamische Konsistenz vorgenommen werden. Wie sich zeigt, ist die Übereinstimmung von Messung und Vorausberechnung durchaus zufriedenstellend.

(Vapour+liquid) equilibria of ternary systems with ionic liquids using headspace gas chromatography

“…Plot of mole fraction vapour against mole fraction liquid to show the experimental and predicted VLE for the binary system of {hexane (1) + benzene (2)} at T = 333.2 K, the ternary system of {hexane (1) + benzene (2) + 80 mol%[HMIM][BTI]} at T = 322.8 K, (N) binary system[11]; (Ç) ternary system; ( ) modified UNIFAC (Dortmund) prediction.…”

SAFT-γ-Mie Cross-Interaction Parameters from Density Functional Theory-Predicted Multipoles of Molecular Fragments for Carbon Dioxide, Benzene, Alkanes, and Water

“…Pressure-dependent vapor–liquid equilibria curves for hexane and benzene at temperatures of either 298 K (red) or 333 K (blue), experimental data are represented as dots of the opposite color for clarity. , Lines represent data calculated from the EOS for the standard SAFT combining rules, our Analytical prediction of the energy parameter from our integrated combining rule, the Curve-Fit of the multipole moment, and a Scaled curve Fit of the multipole that is scaled by the shape factor. (a) Benzene and hexane are represented as the united-atom model.…”

A Practical Fitting Method Involving a Trade-Off Decision in the Parametrization Procedure of a Thermodynamic Model and Its Repercussion on Distillation Processes

“…In studies related to the thermodynamics of solutions, the experimental information generated by the binary benzene + hexane, for different properties, has been, and still is, used by researchers in that area as a reference of their investigations; therefore, the choice of this system is justified. Twenty-three useful VLE data series were found in the bibliography [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42], 16 iso-p and 7 iso-T. Figure 3 shows important errors in some of the series [29,31,37] at 101 kPa, with data missing the trend observed in the other series. These are propagated to the T vs x,y representations ( Figure 4(a)).…”

“…Available iso-T data series are represented in Figure 5. Data are found for the whole composition interval only at 333 and 345 K. Several series were measured at 333 K [40][41][42], allowing their comparison. From the representation of p,x,y ( Figure 5(a)) and related mixing quantities ( Figure 5(b)), an acceptable coincidence is observed.…”