• Document: Saponification of Ethyl Acetate And Sodium Hydroxide in CSTR
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Faculty of Chemical Engineering FINAL REPORT SKF 3751 CHEMICAL REACTION ENGINEERING LABORATORY 2011/2012-SEM 02 EXPERIMENT 3 Saponification of Ethyl Acetate And Sodium Hydroxide in CSTR DATE OF EXPERIMENT 16 March 2012 DATE OF REPORT SUBMISSION 23 March 2012 LECTURER Dr. Dayang Nurul Fairuz Bt Abang Zaidel TECHNICIAN Mr. Zainor Abidin SECTION 02 GROUP NO TEAM MEMBERS MATRICS NUM. NRIC 1 Mohd Syamsul Fitri Bin Saad AK090144 890428-03-5843 2 Wan Nur'ain Nabila Binti Wan Nain AK090369 911231-03-5284 3 Nur Mizatul Hidayah Binti Ismail AK090224 900110-01-5814 4 Sarah Eleena Binti Mohd Usli AK090255 900707-14-6462 EXPERIMENT: 1| (SECTION 02) 1 TABLE OF CONTENT NUM CONTENTS PAGE 1.0 Abstract 2.0 Introduction 1.1 Experimental background 1.2 Objective 1.3 Experimental scope 3.0 Theory/Literature Study 4.0 Methodology 3.1 Equipment and Materials 3.2 Experimental procedure/methodology 5.0 Result and Discussion 4.1Experimental data 4.2 Data analysis and discussion 4.3 Answer to the question in the experimental module 6.0 Conclusion 7.0 References 8.0 Appendices EXPERIMENT: 1| (SECTION 02) 2 1.0 ABSTARCT This experiment is carried out to understand the CSTR system, study the use of a CSTR and the effects of flow changes. Other significance of doing this experiment is to determine rate constant from data and also to study the temperature effects for reaction. The real objective of conducting the experiment is to study the reaction process of saponification reaction between sodium hydroxide and ethyl acetate in CSTR. The first things before all the apparatus is set-up, the conductivity calibration curve is prepared using different molar concentration of sodium hydroxide and sodium acetate. This calibration curve can be used to determine the reaction kinetics and the rate law of the process. Then, both sodium hydroxide and ethyl acetate is prepared according to the given volume and molar concentration before it is transferred into the tank. When the process started, the conductivity and temperature of the reaction is recorded for every two minutes for over 30 minutes. The space time as well as the conductivity and the temperature of the reaction medium are recorded when the liquid level in the CSTR reach two litres. After flow the reaction into the buffer tank, the readings are recorded for another ten minutes. The process are repeated for different amount of feed flow rates. Based on methodology section in the report, it tells about the steps involved while conducting the experiment while the results section shows the recorded value of conductivity and medium reaction temperature. In addition, it also shows the calculated concentrations of the input and output chemicals, rate of reaction and theoretical space time of the CSTR. Instead of that, the discussion section shows the graph plotted using the result obtained and discussed it more detail based on chemical reaction engineering theory. The error and recommendation to avoid mistakes while doing the experiment is also shared in the discussion. The conclusion section concludes all the objectives and calculations of this experiment. EXPERIMENT: 1| (SECTION 02) 3 2.0 INTRODUCTION A common type of reactor used in industrial processing is the continuous-stirred tank reactor (CSTR) which is used primarily for liquid phase reaction. It is normally operated at steady state and assumed to be perfectly mixed. Usually there is no time dependence or position dependence of the temperature, the concentration or the reaction rate inside the tank. This means that every variable is the same inside the reactor. Because the compositions of mixtures leaving a CSTR are those within the reactor, the reaction driving forces, usually the reactant concentrations, are necessarily low. Therefore, except for reaction orders zero- and negative, a CSTR requires the largest volume of the reactor types to obtain desired conversions. However, the low driving force makes possible better control of rapid exothermic and endothermic reactions. When high conversions of reactants are needed, several CSTRs in series

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