Chapter 2, Problem 2.3P

You have two CSTRs and two PFRs, each with a volume of 1.6 m³. Use Figure 2-2B on page 41 to calculate the conversion for each of the reactors in the following arrangements.

1. (a) Two CSTRs in series.
2. (b) Two PFRs in series.
3. (c) Two CSTRs in parallel with the feed, F_A0, divided equally between the two reactors.
4. (d) Two PFRs in parallel with the feed divided equally between the two reactors.
5. (e) Caution: Part (e) is a C level problem. A CSTR and a PFR in parallel with the flow equally divided. Calculate the overall conversion, X_ov

$X_{\text{ov}}=\frac{F_{\text{A}0}-F_{\text{ACSTR}}-F_{\text{APER}}}{F_{\text{A}0}},\text{with}{F}_{\text{ACSTR}}=\frac{F_{\text{A}0}}{2}-\frac{F_{\text{A}0}}{2}{X}_{\text{CSTR}},\text{and}{F}_{\text{APER}}=\frac{F_{\text{A}0}}{2}(1-X_{\text{PER}})$

1. (f) A PFR followed by a CSTR.
2. (g) A CSTR followed by a PFR.
3. (h) A PFR followed by two CSTRs. Is this arrangement a good arrangement or is there a better one?