Chapter 2, Problem 2.10P

The curve shown in Figure 2-1 is typical of a reaction carried out isothermally, and the curve shown in Figure P2-10_B (sec Example 11-3) is typical of a gas-solid catalytic exothermic reaction carried out adiabatically).

Figure P2-10_B Levenspiel plot for an adiabatic exothermic heterogeneous reaction.

1. (a) Assuming that you have a fluidized CSTR and a PBR containing equal weights of catalyst, how should they be arranged for this adiabatic reaction? Use the smallest amount of catalyst weight to achieve 80% conversion of A.
2. (b) What is the catalyst weight necessary to achieve 80% conversion in a fluidized CSTR?
3. (c) What fluidized CSTR weight is necessary to achieve 40% conversion?
4. (d) What PBR weight is necessary to achieve 80% conversion?
5. (e) What PBR weight is necessary to achieve 40% conversion?
6. (f) Plot the rate of reaction and conversion as a function of PBR catalyst weight, W.

Additional information: F_A0 = 2 mol/s.