Side Capacity Model of Stagnancy in a Continuous Stirred-Tank Reactor

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A Continuous Stirred-Tank Reactor (CSTR) has a well-mixed volume (main CSTR) of 7 , and a stagnant volume of 1
. Stagnancy behavior is taken into account using the side-capacity model. Flow rates in the main CSTR and the stagnant volume are 8 and 0.125, respectively (both expressed in
). In a washout experiment, the reactor is initially filled with a tracer (e.g.
. Then the inlet concentration of tracer versus time is set equal to zero. As expected, the concentration of the tracer in the reactor will tend to zero, because the tracer starts leaving the reactor at
.
Contributed by: Housam Binous (March 2011)
Open content licensed under CC BY-NC-SA
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E. B. Nauman, Chemical Reactor Design, Optimization, and Scaleup, 2nd. ed., Hoboken, NJ: Wiley, 2008.