THE EFFECT OF REACTANTS' INITIAL TEMPERATURES ON THE RATE CONSTANT AND CONVERSION OF SAPONIFICATION REACTION TAKING PLACE IN A NON-ISOTHERMAL AND NON-ADIABATIC BATCH REACTOR

  • Nader Kamal Nasar Department of Chemical Engineering, Faculty of Engineering, Sabratha University, Libya
  • Adli Omar Alznati Department of Chemical Engineering, Faculty of Engineering, Sabratha University, Libya
  • Abdulozez Arzoga Department of Chemical Engineering, Faculty of Engineering, Sabratha University, Libya
Keywords: Saponification reaction, Batch reactor, Rate constant, conversion

Abstract

This experimental research studied the saponification reaction of ethyl acetate with sodium hydroxide, which was carried out in a well-agitated non-isothermal and non-adiabatic batch reactor. As no isolation system was provided in this experiment, this study investigated other routes for boosting the reactants conversion. Subsequently, the effect of initial feed temperatures on the reaction rate constant and reaction conversion was assessed. For this purposes, the reaction rates of equimolar reactants were measured when they were heated from 20°C (ambient temperature) to 30°C, 40°C and 50°C. The decrease in the reactants concentrations throughout the reaction durationwas determined at equal time intervals by recording the electrical conductivity data of the reaction mixture. The results were represented graphically for time-conversion, temperature-conversion and temperature-rate constants profiles. They had shown that the reaction rate constant increased with rising of the initial feed temperatures. Even though, the conversion was boosted when the reactants were initially heated above 20°C, no significant change in conversion was achieved between 30, 40, and 50°C. The resulted value of activation energy was about 50 % less than the most accurate published values.

Author Biographies

Nader Kamal Nasar, Department of Chemical Engineering, Faculty of Engineering, Sabratha University, Libya

Department of Chemical Engineering, Faculty of Engineering, Sabratha University, Libya

Adli Omar Alznati, Department of Chemical Engineering, Faculty of Engineering, Sabratha University, Libya

Department of Chemical Engineering, Faculty of Engineering, Sabratha University, Libya

Abdulozez Arzoga, Department of Chemical Engineering, Faculty of Engineering, Sabratha University, Libya

Department of Chemical Engineering, Faculty of Engineering, Sabratha University, Libya

Published
2020-09-27
How to Cite
Nasar, N., Alznati, A., & Arzoga, A. (2020). THE EFFECT OF REACTANTS’ INITIAL TEMPERATURES ON THE RATE CONSTANT AND CONVERSION OF SAPONIFICATION REACTION TAKING PLACE IN A NON-ISOTHERMAL AND NON-ADIABATIC BATCH REACTOR. Scientific Journal of Applied Sciences of Sabratha University, (issue 5), 25-33. Retrieved from https://jas.sabu.edu.ly/index.php/asjsu/article/view/97