Effective diffusivity in a structured packed column: Experimental and Sherwood number correlating study

Azizi, Zoha; Rezaeimanesh, Mohsen; Abolghasemi, Hossein; Bahmanyar, Hossein

doi:10.1016/j.cherd.2013.07.008

Cited by 8 publications

(1 citation statement)

References 18 publications

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“…In both these methods, acetic acid must be separated from dilute aqueous solutions. Because the separation of acetic acid by a distillation process is quite difficult and expensive, the liquid–liquid extraction process can be used by means of an appropriate organic solvent. − Toluene can be chosen as an appropriate solvent due to low vapor pressure, viscosity, and density, and its capability to form two distinct phases at ambient conditions. , Moreover, in recent years, there has been growing interest in the literature to use the ternary system of toluene–acetic acid–water (TAW). − Most of these studies have been conducted in the fields of transport and interfacial phenomena.…”

Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibrium Data, Density, Viscosity, and Interfacial Tension of Ternary System (Toluene–Acetic Acid–Water) at 298.15 K: Experiment and Correlation

2017

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Liquid−liquid equilibrium (LLE) data, density, viscosity, and interfacial tension for the ternary system of toluene−acetic acid− water were measured at 298.15 K and 101.7 kPa. The Othmer−Tobias and the Hand correlations were used to check the reliability of the experimental tie-lines. Moreover, the distribution coefficient and the separation factor were explored. It was found from the experimental results that a maximum separation factor value happens at an acetic acid mass fraction of 0.02 in the organic phase. Density, viscosity, and interfacial tension were correlated using the appropriate correlations such that the predicted results have excellent agreement with the experimental data. The experimental data in this work and the literature were correlated using both the nonrandom two-liquid (NRTL) and the universal quasi chemical (UNIQUAC) activity coefficient models at various temperatures (288.2, 298.15, 303.15, and 313.15 K). The experimental results were used to obtain binary interaction parameters in these models. The root-mean-square deviation (RMSD) values for both models were less than 3.58%, and the model predictions show acceptable agreement with the measured data particularly at the plait point.

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