Chapter 18, Problem 18.6P

Use the data in Example 16-2 to make the following determinations. (The volumetric feed rate to this reactor was 60 dm³/min.)

1. (a) Calculate the Peclet numbers for both open and closed systems.
2. (b) For an open system, determine the space time τ and then calculate the % dead volume in a reactor for which the manufacturer’s specifications give a volume of 420 dm³.
3. (c) Using the dispersion and tanks-in-series models, calculate the conversion for a closed vessel for the first-order isomerization

$\text{A}\stackrel{}{\to }\text{B}$

with k = 0.18 min⁻¹.

1. (d) Compare your results in part (c) with the conversion calculated from the tanks-in-series model, a PFR, and a CSTR.