For highly non-ideal vapor-liquid-liquid equilibrium separations, light and heavy liquid phase composition data may be used to improve the initial estimate where two liquid phases exist on the trays.
Usage
From the Column Main Window, push the Initial Estimate button.
From the Column Initial Estimates Window, push the Liquid Composition button.
From the Initial Liquid Composition Profile Window, push the Individual Phases button.
Enter the estimated component liquid mole fractions for desired trays in the table provided for each liquid phase. Tray numbers are entered in the top row of the table. Components are selected using the drop-down lists and liquid mole fractions are entered in horizontal rows, under the tray numbers. See Editing Tabular Data for further explanation of tabular data entry and editing.
Additional Information
If you wish you can override all or part of the estimate data provided by the initial estimate generation method. Liquid mole fraction data are determined by linear interpolation for trays that are bracketed by estimates.
It is good practice to supply compositions at several trays over the range of the column for highly non-ideal applications. Minimum suggested locations are the condenser, feed tray, and reboiler.
Related topics