ChE-403 Reaction ChE-403 Reaction Mohammad Faraj Prof.:Malik Al-Ahmad

What we will talk about ? o What Is CSTR? o The Experiment That Was Done: Theory. Theory. Experimental Procedure. Experimental Procedure. Results and Discussions. Results and Discussions. Conclusions and Recommendations. Conclusions and Recommendations. Introduction

o CSTR ( Continuous Stirred Tank ) is a type of reactor used commonly in industrial processing. o It is Used Primarily For: Liquid phase reactions. Liquid phase reactions. Steady state operation. Steady state operation. Perfectly mixed operation. Perfectly mixed operation. What is CSTR?

Advantages: Good temp. control is easily maintained. Good temp. control is easily maintained. Cheap to construct. Cheap to construct.Disadvantages:  Conversion of reactor to product per volume of reactor is small compared to other flow reactors. What is CSTR?

 The General Material Balance: Theory of The Experiment

 For CSTR: Theory of The Experiment

 To Convert The Conductivity To Concentration: Theory of The Experiment

 The reactor that used in this experiment was CSTR with T = 22C. and the following reaction was done: T = 22C. and the following reaction was done:  The objectives of the experiment to know the reaction constant in CSTR. Experimental Procedure

Results and Discussions

 The concentrations of A at Steady State: Results and Discussions CONCENTRATION OF A Feed CONCENTRATION OF A CSTR

 α = 5 (Batch Case).  k = X10-6 [ml^4/(s.mol^4)] (Batch Case).  CA = CAo ( 1 – X ) => X =  ν = 1 ml/s Results and Discussions

 The value of k is varying in the two cases, may be because of the steady state in two cases not reached.  The CSTR experiment not needed for finding the variables in this experiment (batch reactor is enough).  The Recording of results must taken by using computer to get accurate results. Conclusions and Recommendations

 H.Scott Fogler, "Element of Chemical Reaction Engineering", 4th ed. United States of America: Pearson,  Abo Kalaf A., "Chemical Engineering Laboratory ". References

Thank You Any Questions?