Question: Using the data in Problem P16-11B, a. Plot the internal-age distribution I(t) as a function of time. b. What is the mean internal age m?
Using the data in Problem P16-11B,
a. Plot the internal-age distribution I(t) as a function of time.
b. What is the mean internal age αm?
c. The activity of a “fluidized” CSTR is maintained constant by feeding fresh catalyst and removing spent catalyst at a constant rate. Using the preceding RTD data, what is the mean catalytic activity if the catalyst decays according to the rate law ![]()
d. What conversion would be achieved in an ideal PFR for a second-order reaction with kCA0 = 0.1 min–1 and CA0 = 1 mol/dm3?
e. Repeat (d) for a laminar-flow reactor.
f. Repeat (d) for an ideal CSTR.
g. What would be the conversion for a second-order reaction with kCA0 = 0.1 min–1 and CA0 = 1 mol/dm3 using the segregation model?
h. What would be the conversion for a second-order reaction with kCA0 = 0.1 min–1 and CA0 = 1 mol/dm3 using the maximum mixedness model?
Problem P16-11B
The volumetric flow rate through a reactor is 10 dm3/min. A pulse test gave the following concentration measurements at the outlet:

a. Plot the external-age distribution E(t) as a function of time.
b. Plot the external-age cumulative distribution F(t) as a function of time.
c. What are the mean residence time tm and the variance, σ2?
d. What fraction of the material spends between 2 and 4 minutes in the reactor?
e. What fraction of the material spends longer than 6 minutes in the reactor?
f. What fraction of the material spends less than 3 minutes in the reactor?
g. Plot the normalized distributions E(Θ) and F(Θ) as a function of Θ.
h. What is the reactor volume?
i Plot the internal-age distribution I(t) as a function of time.
j. What is the mean internal age αm?
-dix adxt-kDx a2x with KD=0.1[xs-1?
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