Problem 6: Elements of Chemical Reaction Engineering 6h Ed P2-2 (b), (c) and (e) For part (b) do not attempt for the doubled flow rate P2-2 a. Revisit the data in Table 2.1 Raw Data and calculate the batch reactor (BR) times to achieve 10% 50% and 80% conversion when 100 moles of A are charged to a 400 dm reactor b. Revisit Examples 2.1 through 2-3. How would your answers change if the flow rate. Fi were cut in half? if it were doubled? What conversion can be achieved in a 4.5 m PFR and in a 4.5 m CSTR? c. Revisit Example 2-2. Being a company about to go bankrupt, you can only afford a 2.5 m CSTR. What conversion can you achieve? d. Revisit Example 2-3. What conversion could you achieve if you could convince your boss, Dr. Pennypincher to spend more money to buy a 16 m PER to attach to a 240 m CSTR? & Revisit Example 2-4. How would your answets change if the two CSTRs (one 0.82 mand the other 3.2 mwere placed in parallel with the flow. Fes divided equally between the reactors! f. Revisit Escample 2.5. (1) What is the worst possible way to arrange the two CSTRs and one PER??? What would be the reactor volumes if the two intermediate conversions were changed to 20% and 50%, respectively (3) What would be the conversions. XX, and X. If all the reactors had the same solume 100 de and were placed in the same order? dx 9. Revist Example 2-6, 1 meter Cro seconds for 8096 conversion how much fluid (m/min) can you process in sm reactor? TABLE 2-2 PROCESSED DATA dX g. Revisit Example 2-6. If the term is 2 seconds for 80% conversion, how much fluid OTA (m/min) can you process in a 3 m' reactor? Cae). TABLE 2-2 PROCESSED DATA X 0.0 0.1 0.2 0.4 0.6 0.7 08 mol -TA 0445 0.37 0.30 ms 0.195 0.113 0.079 0.05 m mol 2.22 12.70 3.33 5.13 8.85 12.7 20 Farm 0.89 1.08 1513 2.05 3.54 5.06 9 Example 2-1 Sizing a CSTR The reaction described by the data in stile 2-21 Example 2-1 Sizing a CSTR The reaction described by the data in Table 2-2 AB mol s is to be carried out in a CSTR. Species A enters the reactor at a molar flow rate of Frp04 which is the flow rate used to construct the Levenspiel plot in Figure 2-2(b). a. Using the data in either Table 2-2 or Figure 2-2(b), calculate the volume necessary to achieve 80% conversion in a CSR b. Shade the area in Figure 2-2(b) that would give the CSTR volume necessary to achieve 80% conversion 9 MB CHE 442 Introduction to Chemical Reactor Design Taylor Spring 2022 Example 2-2 Sixing a PFR The reaction described by the data in Tables 2-1 and 2-2 is to be carried out in a PFR. The entering molar flow rate of Ais again. Fro - 04 mol/s. a First use one of the integration formulas given in Appendix A4 to determine the PER reactor volume necessary to achieve 80% conversion b. Next shade the area in figure 2-2(6) that would give the PFR volume necessary to achieve 8095 conversion c. Finally, make a qualitative sketch of the conversion X, and the rate of reaction - down the length (volume) of the reactor. vork 1 Updated.pdf Page
