Paper Title :Thermodynamic Equilibrium of Ethyl Acetate Synthesis: Validation of Obtained Data by Different Tackled Methodologies and Techniques

Author :Salah Alhajri, Sami H. Ali

Article Citation :Salah Alhajri ,Sami H. Ali , (2024 ) " Thermodynamic Equilibrium of Ethyl Acetate Synthesis: Validation of Obtained Data by Different Tackled Methodologies and Techniques " , International Journal of Advances in Science, Engineering and Technology(IJASEAT) , pp. 38-41, Volume-12,Issue-4

Abstract : The esterification reaction between acetic acid and ethyl alcohol was examined over a temperature range of 298.15 to 328.15 K, utilizing both homogeneous and heterogeneous catalysts. Experimental conditions included equimolar reactant ratios and catalyst loadings of 40 g/L. Equilibrium was achieved within two days across all systems, with minimal temperature-dependent variation in equilibrium conversions. Catalyst characteristics significantly impacted equilibrium conversion, alongside temperature effects. The Modified UNIFAC-Dortmund model accurately predicted the system's non-idealities, with activity coefficients following the sequence: acid < alcohol < ester < water. Equilibrium constants (Ka) demonstrated a slight decrease with rising temperature. The average Ka values for sulfuric acid and various heterogeneous catalysts (Amberlyst 15, Amberlite IR-120, Dowex 50wx8) were 13.92, 8.16, 10.60, and 9.31, respectively. The catalyst type influenced equilibrium conversion, with Ka values for sulfuric acid comparable to those reported for para-toluene sulfonic acid. Theoretical equilibrium constants, sensitive to ΔG0 values, aligned closely with experimental results, particularly for the Amberlyst 15-catalyzed system.

Type : Research paper

Published : Volume-12,Issue-4

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