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Liquid−Liquid Equilibria for the System Water + Ethanol + Ethyl tert-Butyl Ether

Mohamed S. Fandary, Adel S. Al-Jimaz, Jasem A. Al-Kandary, Mohamed A. Fahim

Open publisher page 22 citations

Abstract

The liquid−liquid equilibrium (LLE) for the system water + ethanol + ethyl tert -butyl ether (ETBE) has been studied in the temperature range of (288.15 to 308.15) K. The NRTL equation and UNIQUAC method were used to regress the experimental data. The UNIFAC method was used to predict the phase equilibrium in the system using the interaction parameters determined from experimental data between groups CH 2, CH 2 O, OH, and H 2 O. The UNIQUAC and NRTL equations fit the experimental data with a root mean square deviation of 0.36% for each, while the UNIFAC method predicted the results with a root mean square deviation of 0.65%.

About this research paper

What this paper is about

The liquid−liquid equilibrium (LLE) for the system water + ethanol + ethyl tert -butyl ether (ETBE) has been studied in the temperature range of (288.15 to 308.15) K. The NRTL equation and UNIQUAC method were used to regress the experimental data. The UNIFAC method was used to predict the phase equilibrium in the system using the interaction parameters determined from experimental data between groups CH 2, CH 2 O, OH, and H 2 O. The UNIQUAC and NRTL equations fit the experimental data with a root mean square deviation of 0.36% for each, while the UNIFAC method predicted the results with a root mean square deviation of 0.65%.

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OpenAlex reports 22 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

The liquid−liquid equilibrium (LLE) for the system water + ethanol + ethyl tert -butyl ether (ETBE) has been studied in the temperature range of (288.15 to 308.15) K. The NRTL equation and UNIQUAC method were used to regress the experimental data. The UNIFAC method was used to predict the phase equilibrium in the system using the interaction parameters determined from experimental data between groups CH 2, CH 2 O, OH, and H 2 O. The UNIQUAC and NRTL equations fit the experimental data with a root mean square deviation of 0.36% for each, while the UNIFAC method predicted the results with a root mean square deviation of 0.65%.

Key concepts: UNIQUAC, Non-random two-liquid model, UNIFAC, Chemistry, Root mean square, Thermodynamics, Group contribution method, Absolute deviation

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