Elements of
Chemical Reaction Engineering
6th Edition



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Essentials of
Chemical Reaction Engineering
Second Edition

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Chapter 18: Models for Nonideal Reactors

Additional Homework Problems

CDP18-DB

 

A packed-bed reactor is injected with a tracer. The pulse is injected into the bed about 4 particle diameters from the entrance, which is not perfect. The variance in the injection is14eq70.gif= 15 s 2. The variance at the measuring point 3 m downstream is14eq70.gif= 50 s 2. The superficial velocity is 0.01 m/s.
(a) Calculate the dispersion coefficient
(b) Calculate the conversion for a first-order reaction in which k = 0.02 s -1

[2nd Ed. P14-6]