RK1 - King Fahd University of Petroleum & Minerals Chemical...

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Chemical Engineering Department CHE - 409 : Chemical Engineering Laboratory II Section # : 09 Group # : B Experiment # : RK1 HOMOGENEOUS BATCH REACTOR Written by : JAAFAR ISA BU-SAAD ID # : 906098 Coworker : ABDULELAH SHARAF ID # : 898712 Date Experiment Performed : 05/5/1996 Date Report Submitted : 12/5/1996 Instructor : Mr. O. Al-Mubaiyedh ABSTRACT:
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A reaction of 0.1 M Caustic Soda and 0.1 M Ethyl Acetate, which is found to be a second-order reaction, is studied using a Homogeneous Batch Reactor. This report, also, explains how to determine both the order of a reaction and the value of the rate constant by using the Integral Method. The calculated reaction rate constant is 5.17 lit./mol.min . that have 22.4 % difference from the literature value of rate constant. INTRODUCTION Kinetics is the part which deals mainly with measuring reaction rate in the laboratory. This is done in two parts [-r A = k f(C)]: 1. finding f(C) 2. finding k = A e -E/RT
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that means measuring the reactor at different temperatures. The measurement of reaction rate can be in different reactors: Batch, CSTR, or Plug Flow, but the common one is the BATCH REACTOR since it can use small quantities of material. In this experiment, a Batch Reactor was used to test the liquid phase reaction between NaOH and CH 3 COOC 2 H 5 by determining the reaction order and the value of the reaction rate constant. THEORETICAL BACKGROUND In a Batch Reactor, the progress of a liquid phase reaction can be followed by the measurement of concentration as a function of time. The liquid phase reaction between caustic soda and ethyl acetate was performed to determine the reaction order and the reaction rate constant. The reaction is NaOH + CH 3 COOC 2 H 5 ====> C 2 H 5 OH + CH 3 COONa For a constant volume system, the reaction rate is given by: -r A = -(dC A /dt) = k f(C A ) (1) Equation (1) could be rearranged to have the form: -dC A /f(C A ) = k dt (2) Moreover, integration of Equation (2) gives: - [dC A /f(C A )] = k dt = k t (3) To study the kinetics of a reaction in a batch reactor, it is important to know the
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This note was uploaded on 12/28/2010 for the course CHEMICAL CHEM 409 taught by Professor Abdullahal-shammari during the Fall '08 term at King Fahd University of Petroleum & Minerals.

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RK1 - King Fahd University of Petroleum & Minerals Chemical...

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