Purdue University CHE 348
Homework Set 2
Due Friday, January 29, 2016
1. (20 points) A liquid phase reaction, A + B C, proceeds according to the following rate
expression:
0.5* k * K * C A
1 + K * CA
k = 5 mol dm-3 s-1
K = 10 dm3 mol-1
rA =
This reaction
Purdue University CHE 348
Homework Set 2
Due Friday, September 11, 2015
1. (25 points) Your company has decided to increase the manufacturing capacity of hydrocarbon
C, starting from conventional feedstock A. This is a gas-phase reaction that occurs on a
Purdue University CHE 348
Homework Set 3
Due Friday, September 18, 2015
1. (25 points) Consider the following irreversible, gas-phase reaction:
aA+bB !k! pP
This reaction occurs in an isothermal, constant volume batch reactor. The reaction rate
expression
Purdue University CHE 348
Homework Set 1
Due Friday, September 4, 2015
1. (30 points) Many of the problems that we will be working on will require a numerical solution
for a system of ordinary differential equations or a set of algebraic equations. You ca
Purdue University CHE 348
Homework Set 2
Due Wednesday, September 4, 2013
Problem 1 (20 points)
A liquid phase reaction, A 2B + C, is to be carried out isothermally in a continuous
flow reactor running at steady-state. The volumetric flow rate is constant
Purdue University CHE 348
Homework Set 8
Due Friday, October 30, 2015
1. (20 points) The elementary liquid-phase reaction
A+BC
is carried out in a CSTR with a heat exchanger. The feed is equimolar in A and B at a total molar
flow rate of 20 mol s-1. The i
Purdue University CHE 348
Homework Set 4
Due Friday, September 25, 2015
1. (25 points) Consider a gas-phase reaction that occurs via the following sequence of elementary
steps (Ij are reactive intermediates):
2 + 1
k1 = 2.5*10-2 s-1
+ 1 2 2 +
k2 = 1*10
Purdue University CHE 348
Homework Set 5
Due Friday, October 9, 2015
1. (25 points) The following elementary, gas-phase reaction
2 A 2B
is carried out in an isothermal PFR with a recycle stream. The feed stream is pure A. The overall
conversion, XAf, is 0
Purdue University CHE 348
Homework Set 10
Due Friday, November 13, 2015
1. (25 points) Species A and B react in the following elementary, liquid-phase reactions:
1
A+2B k 2R+ S
2
A+ B k T +U
An equimolar mixture of A and B is introduced into an infinitely
Purdue University CHE 348
Homework Set 6
Due Monday, October 19, 2015
1. (30 points) The reversible, gas-phase, elementary step reaction
A B + 2C
takes place in a cylindrical, plug-flow, membrane reactor. Pure A enters the reactor, and A and B
can diffuse
Purdue University CHE 348
Homework Set 7
Due Friday, October 23, 2015
1. (40 points) The elementary, irreversible, gas-phase reaction:
A BC
is carried out in an adiabatic PFR packed with catalyst. Pure A enters the reactor at a volumetric
flow rate of 20
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Purdue University Department of Chemical Engineering
Final Examination CHE 348 Name:
Closed book and notes Friday, May 2, 2008
goiwiri OAS
1. (15 points) Decomposition of ozone catalyzed by atomic chlorine
The following two-step cycle is believed to occ
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Purdue University CHE 348 Spring 2015
Homework Set 11
Due Friday, May 1, 2015
Problem 1 (40 points)
The following heterogeneous, second-order reaction:
A B
-rA = kCA2
k = 50 m4 mol-1 s-1
occurs in an isothermal tubular reactor packed with spherical cataly
Problem 1 (30 points) - Include all computer work (e.g. Polymath or
Matlab code)
This reaction on a nickel-silica catalyst is zero-order in o-cresol (A) and first
order in hydrogen (B) with a rate constant (at 170C) of 0.05 mol o-cresol/
(kg-cat min atm).
Purdue University CHE 348 Spring 2015
Homework Set 11
Due Friday, April 24, 2015
Problem 1 (25 points)
(a) Write the rate of consumption of I1 for the set of elementary reactions shown below in terms
of the rate of each step
k1
I1
A
k1
2
I2
23I
I1
k
1
Purdue University CHE 348
Homework Set 11
Due Friday, December 4, 2015
1. (35 Points) Species A is present in dilute concentration in the bulk liquid phase, and diffuses
at steady-state through a thin ( < R) boundary layer to react at the external surface
Purdue University CHE 348
Homework Set 3
Due Friday, September 18, 2015
1. (30 points) Consider the following irreversible, gas-phase reaction:
aA+bB !k!
pP
This reaction occurs in an isothermal, constant volume batch reactor. The reaction rate
expressio
Purdue University CHE 348
Homework Set 12
Due Friday, December 11, 2015
1. (10 points)
Dear Class,
We would really appreciate your feedback and time to fill out your online evaluation for ChE 348
this semester. By now, you should have received an e-mail l
Chapter 1
CHE 348 Spring 2017
Lecture 1
Chemical Reaction Engineering (CRE) is the
field that studies the rates and mechanisms of
chemical reactions and the design of the
reactors in which they take place.
1
Lecture 1
Introduction
Definitions
General M
ChE 34800 Homework 2:
Due Wednesday, January 16, 2017 by 1:30p in FRNY G140
Instructions: Please complete the following problems on separate, numbered pages. Start each problem on a new page
and write only on one side of a piece of paper. Only one side of