You have two CSTRs and two PFRs, each with a volume of 1.6 m3. Use Figure 2-2(b)  to calculate the conversion for each of the reactors in the following arrangements.
1. Two CSTRs in series.
2. Two PFRs in series.
3. Two CSTRs in parallel with the feed, FA0, divided equally between the two reactors.
4. Two PFRs in parallel with the feed divided equally between the two reactors.
5. A PFR followed by a CSTR.
6. (f) A CSTR followed by a PFR. (Ans: XCSTR = 0.435, XPFR = 0.71)
7. A PFR followed by two CSTRs. Is this a good arrangement or is there a better one?
8. Caution: Part (h) is a C level problem. A CSTR and a PFR in parallel with the flow equally divided. Calculate the overall conversion, Xov
Xov=FA0-FACSTR-FAPFRFA0,with FACSTR=FA02-FA02XCSTR, and FAPFR=FA02(1-XPFR)

Figure 2-2(b)

FAO -YA (m3) 12 10 8 6 4 2 O 0.0 0.2 0.4 0.6 Conversion, X 0.8 1.0