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 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 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 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 8
Due Friday, March 25, 2016
1. (30 points) Consider the following elementary, exothermic, liquid-phase reaction:
k
A
B
k (500 K) = 0.08 s-1
EA = 150 kJ/mol
For this reaction, HR (298K) = -5 kJ/mol and all species h
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 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 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
Purdue University CHE 348
Homework Set 5
Due Friday, February 26, 2016
1. (25 points) The chlorine-catalyzed decomposition of ozone (2O3 3O2), proceeds via the
following sequence of elementary steps:
Initiation:
Propagation:
Termination:
k1
Cl 2 + O3
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
2.5 - correct mass
balance with units
2.5 - correct final
equation with units
2.5
2.5
2.5 for Area
2.5 for Area
2.5
2.5
5 - Derivation for
PFR
10 - Constructing
stoichiometric table
5 - derivation of v(x)
10 - proper
substitutions
5 - calculating Vo
0.77
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
Purdue University CHE 348 Spring 2015
Homework Set 7
Due Friday, Mar. 27, 2015
Problem 1:
Given the following reaction:
(1)
A + B D
(2)
B+ D U
r 1 A =103 e
2500K
T
9
C A CB
r 2 B=10 e
7200 K
T
C 2B C D
a. Describe the reactor system and conditions to maxi
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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, 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
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ChE 348 Spring 2016
Chemical Reaction Engineering
MIDTERM EXAMINATION I
Thursday, February 18, 2016
The exam is I 10 points total and 22.5% of the course grade.
Please read through the questions carefully
before giving your response.
Only responses writte
ChE 348 Spring 2016
Chemical Reaction Engineering
MIDTERM EXAMINATION I
Thursday, February 18, 2016
The exam is 110 points total and 22.5% of the course grade.
Please read through the questions carefully
before giving your response.
Only responses written