Evaluate the effectiveness of the new catalyst at \(350^{\circ} \mathrm{C}\) that results from increasing the reactor volume.

a. Plot cumene production versus reactor volume.

b. Plot selectivity (defined as cumene generated/DIPB generated) versus volume.

Problems 23. 17-23.20 investigate the performance of the cumene reactor (fluidized bed), described in Section 23. 5.2, that results from replacing the catalyst. The replacement catalyst kinetics are given in Table 23. 2. The base case selected is the currently operating reactor (with an active volume of \(\left.7.49 \mathrm{~m}^{3}ight)\). Process output for the base case is given in the flow table in Figure 23. 6. 20.

Figure 23.6

Table 23.2

Transcribed Image Text:

350 3025 Fluidized Bed (PFR with 5% bypass) Flowrates (kmol/h) Stream 1 4 11 7 8 350 Benzene 110.5 103.1 213.6 119.6 3075 Propylene 110.5 110.5 13.9 Propane 5.5 Cumene 5.5 5.5 91.4 Temperature (C) DIPB 2.6 Pressure (kPa)