Page 365 - Elements of Chemical Reaction Engineering Ebook

336 Multiple Reactions Chap. 6

JOURNAL CRITIQUE PROBLEMS

P6C-1 Is it possible to extrapolate the curves on Figure 2 [AIChE J., 17,856 (1971)l
to obtain the initial rate of reaction? Use the Wiesz-Prater criterion to deter-
mine if there are any diffusion limitations in this reaction. Determine the par-
tial pressure of the products on the surface based on a selectivity for ethylene
oxide ranging between 51 and 65% with conversions between 2.3 and 3.5%.
P6C-2 Equation 5 [Chem Eng. Sci., 35,619 (1980)l is written to express the forma-
tion rate of C (olefins). As described in equation 2, there is no change in the
concentration of C in the third reaction of the series:

A B)
A+B -% C
B+C k3 j c. equation 2
c A DJ

(a) Determine if the rate law given in equation 5 is correct.
(b) Can equations 8.9, and 12 be derived from equation 5?
(c) Is equation 14 correct?
(d) Are the adsorption coefficients bi and bj calculated correctly?
CD - ROM MATERIAL
Learning Resources
1. Summary Notes for Lectures 11, 12, and 13
2. Web Modules
A. Cobra Bites
B. Oscillating Reactions
I w 4. Solved Problems
A. cDp6-B~ All You Wanted to Know About Making Malic
Anhydride and More.
t 5. Clarification: PFR with feed streams along the length of the reactor:
Living Example Problems
I. Example 6-6 Hydrodealkylation of Mesitylene in a PFR
2. Example 6-7 Hydrodealkylation of Mesitylene in a CSTR
3. Example 6-8 Calculating Concentrations as a Function of Position
for NH3 Oxidation in a PFR
4. Cobra Bite Problem
5. Oscillating Reactions Problem
0 FAQ [Frequently Asked Questions]- In UpdatesEAQ icon section
Additional Homework Problems

CDP6-AB Suggest a reaction system and conditions to minimize X and Y for the
parallel reactions A + X, A + B, and A + Y.
[2nd Ed. P9-51.
CDP6-BB Rework maleic anhydride problem, P6-14, for the case when reaction
1 is second order. [2nd Ed. P9-81
B,
D
CDP6-CB The reaction sequence A + B ___) C, B + is
carried out in a batch reactor and in a CSTR. [2nd Ed. P9-121
CDP6-DB Isobutylene is oxidized to methacrolum, CO, and COz. [lst Ed. P9-161