Reaction Engineering

Solutions Manual for Elements of Chemical Reaction Engineering Sixth Edition

• Scott Fogler

Ame and Catherine Vennema, The Arthur F. Thurnau, An n Arbor, Michigan 1 / 4

Table of Contents Screen Shot of Web Home Page ....................................................................................... i Screen Shot of Interactive Computer Games (ICGs) ........................................................ ii Screen Shot of Polymath Living Example Problems (LEPs) ........................................... iv Algorithm to Decode ICGs .............................................................................................. v Sample Course Syllabus ................................................................................................. ix Solutions to Chapter 1 – Mole Balances Questions Q1- 1 through Q1-12 Problems P1- 1 through P1- 8 Solutions to Chapter 2 – Conversion and Reactor Sizing Questions Q2- 1 through Q2-6 Problems P2- 1 through P2- 11 Solutions to Chapter 3 – Rate Laws Questions Q3-1 through Q3-7 Problems P3- 1 through P3- 16 Solutions to Chapter 4 – Stoichiometry Questions Q4- 1 through Q4-9 Problems P4- 1 through P4- 13

Solutions to Chapter 5 – Isothermal Reactor Design: Conversion

Questions Q5- 1 through Q5-13 Problems P5- 1 through P5- 26 Solutions to Chapter 6 – Isothermal Reactor Design: Moles and Molar Flow Rates Questions Q6- 1 through Q6-7 Problems P6- 1 through P6- 13 Solutions to Chapter 7 – Collection and Analysis of Rate Data Questions Q7- 1 through Q7-7 Problems P7- 1 through P7- 12 Solutions to Chapter 8 – Multiple Reactions Questions Q8- 1 through Q8-5 Problems P8- 1 through P8- 18 Solutions to Chapter 9 – Reaction Mechanisms, Pathways, Bioreactions and Bioreactors Questions Q9- 1 through Q9-4 Problems P9-1 through P9-23 Solutions to Chapter 10 – Catalysis and Catalytic Reactors Questions Q10- 1 through Q10-9 Problems P10- 1 through P10- 23 2 / 4

Solutions to Chapter 11 – Nonisothermal Reactor Design: The Steady-State Energy Balance and Adiabatic PFR Applications Questions Q11-1 through Q11-14 Problems P11-1 through P11-10 Solutions to Chapter 12 – Steady-State Nonisothermal Reactor Design: Flow Reactors with Heat Exchange Questions Q12-1 through Q12-6 Problems P12-1 through P12-27 Solutions to Chapter 13 – Unsteady State Nonisothermal Reactor Design Questions Q13-1 through Q13-5 Problems P13-1 through P13-11 Solutions to Chapter 14 – Mass Transfer Limitations in Reacting Systems Questions Q14-1 through Q14-8 Problems P14-1 through P14-17 Solutions to Chapter 15 – Diffusion and Reaction Questions Q15-1 through Q15-8 Problems P15-1 through P15-17 Solutions to Chapter 16 – Residence Time Distributions of Chemical Reactors Questions Q16-1 through Q16-5 Problems P16-1 through P16-13 Solutions to Chapter 17 – Predicting Conversion Directly from the Residence Time Distribution Questions Q17-1 through Q17-4 Problems P17-1 through P17-18 Solutions to Chapter 18 – Models for Nonideal Reactors Questions Q18-1 through Q18-6 Problems P18-1 through P18-20

• / 4

S1-1 Synopsis for Chapter 1 – Mole Balances

Mole balances are the first building block of the chemical reaction engineering algorithm.General: The goal of these problems are to reinforce the definitions and provide an understanding of the mole balances of the different types of reactors. It lays the foundation for step 1 of the algorithm in Chapter 5.

Key to Nomenclature l = Always assigned AA = Always assign one from the group of alternates O = Often assigned I = Infrequently assigned S = Seldom assigned G = Graduate level N = Never assigned E.g., means problem l P1-3B will be assigned every time I teach the course, problem AA P1-8 means that this problem or one of the other problems with the prefix AA is always assigned for this chapter, Problem l P1-2 will be infrequently assigned, Problem O P1-6B will often be assigned, and Problem S P3-16B is seldom assigned.

Alternates: In problems that have a dot in conjunction with AA means that one of the problems, either the problem with a dot or any one of the alternates are always assigned.

Time: Approximate time in minutes it would take a B student to solve the problem.

l Q1-1A (9 seconds) Questions Before Reading (QBR).(a) John Falconer at the University of Colorado gives workshops on Teaching in which he points out that students have a better comprehension if they ask themselves a question before reading the text. The first question of each chapter, Q1, is just such a question.(b) The students are asked, at a minimum read through the Questions to help put the chapter and their studies in perspective.(c) I encourage using the i>Clicker questions.l Q1-2A (8-10 min) i>Clicker l Q1-5A (5-75 min) through Q1-12A. To get a “feel” of the resources available, the students should spend a total of about 50-75 minutes on these questions.

Computer Simulations and Experiments (5-15 minutes per simulation) These problems are interactive and are a minor paradigm shift in the way we use homework problems.Here the students are asked to explore the reaction and the reactor in which they occur to get an intuitive feel and understanding of the reactor system. This procedure is called Inquiry Based Learning

(IBL).

l P1-1A (10-15 min) Good introduction to the use of Wolfram and Python.

Problems I P1-2B (60 min) Problem reinforces wide range of applications of CRE and problem is given in the web module which can be accessed from the Web Home Page (www.umich.edu/~elements). Many students like this straight forward problem because they see how CRE principles can be applied to

• / 4