COVENANT UNIVERSITY
2012/2013 Academic Session
College:
Science & Techology
Department:
Chemical Engineering
Programme:
Chemical Engineering
Course Title:
Chemical Reaction engineering II
Course Code:
CHE 416
Units:
3
Course Lecturer :
HYMORE, F. K.
Semester:
Alpha
Time:
MON: 1-2 pm, THURS: 9-11 am
Location:
C37 Chemical Engineering Building
Brief Overview of Course
The underlying assumptions and reasons for the considerations of Ideal reactors are introduced.
The design equations of each of the ideal reactors-batch, plug flow and continuous stirred tank
reactor- are derived and used to design isothermal reactors and also compare the reactors.
Reactor systems-a combination of ideal reactors in series and parallel are compared with single
ideal reactors. Material and energy balance equations are combined to solve for the design and
assessment of reactors in non-isothermal operations. Real and ideal reactors are compared and
the reasons for deviations from ideal behaviour explained. Residence time distribution functions
are introduced and used to explain the deviations from ideal behaviour. Conversions for first
order reactions are predicted in real reactors. Combined reactor models are used to account for
other orders of reaction.
Course Objectives/Goals
Understand the assumptions for the ideal reactor models-batch, continuous stirred tank
reactors and plug flow reactors
Ability to use the design equations of the reactors to design and assess the performance of
ideal reactors in isothermal operation.
Use the energy balance equation, in combination with the design equations to design and
assess the performance of reactors in non-isothermal operations
Compare ideal with real reactors and explain deviations from ideal behaviour
Residence time distribution functions
Predictions of conversions in real reactors for first order reactions.
Use of combined reactor models to account for conversions in real reactors
Method of Lecture Delivery/Teaching Aids
Power point Slides
Multimedia
Interactive lecture sessions in Class rooms
Course Outlines
Module 1
Ideal reactors –assumptions and reasons for their considerations
Material balance and design equations for ideal reactors
Comparison of the performances of single ideal reactors for isothermal reactions
Comparison of the performances of single and combined ideal reactors for isothermal
reactions
Solving the design equations for isothermal multiple reactions
Module 2
Enthalpy, heat of reaction and equilibrium constant as a function of temperature
Energy balance equations for reactors
Combination of energy balance and design equations to solve non-isothermal operations
of reactors in steady state.
Optimum reaction temperature for single and multiple reactions
Adiabatic operations of ideal reactors
Non-adiabatic operation of ideal reactors
Inter-stage heating/cooling of reactors
Module 3
Real reactors and deviations from ideal reactors
Measurement of Residence time distribution in vessels.
Residence time distribution functions and their relationships
Residence time distribution functions of ideal and real reactors
Tutorials
One hour of tutorial for every two hours of interactive lectures
Structure of Programme/ method of grading
The final course grade will be weighted according to the following scheme:
Assignments & Quizzes
15%
Mid Semester Test
15%
Semester Exam
70%
Ground rules & regulations
Unannounced quizzes will be given (generally once each week) to reinforce important
principles and to encourage preparation for class.
Only official University/medical excuse will be tolerated for absence from quiz.
Some quizzes will be given during tutorials
Topic for Term paper/ Assignment /Student Activiteis
Investigations of the reactions of the airbag:
How does it work and what are the limitations?
Alignment With covenant University Vison/Goals
The course is in line with producing chemical engineers capable of facing the challenges of the
profession
Contemporary Issues/ Industry relevance
The reactor is the central feature of most chemical processes. Their performances determine to a
large extent, the cost of the overall process .The problems discussed are a combination of
theoretical and actual problems.
Recommended reading/Text
Coker, A. K. Modeling of Chemical Kinetics and Reactor Design, Gulf Publishing
Company, Houston, Texas, 2001
Levenspiel, O., Chemical Reaction Engineering, 3rd ed., John Wiley and Sons, New York
1999
Fogler, H. S., Elements Of Chemical Reaction Engineering,,2nd ed., Prentice-Hall ,
International,1995
Nauman, E.B., Chemical Reactor Design, Optimization, and Scaleup, McGraw-Hill,
NEW York 2002