Question

You have 2 CSTRs in series and 3 liquid reactions:

A -> R -> S

R -> T

A -> U

Both reactors have the same volume and are isobaric (no pressure drop) and isotherm (no change in T). The final concentration (CA0) is 1 mol/L and the space time is 100 seconds.

The constants are: k1 = 10^9 e^(-6/T); k2 = 10^7 e^4000/T; k3 = 10^8 e^-9000/T; k4 = 10^12 e^-12000/T

1). Which temperatures below will result in a higher conversion / yield of the desired component (S)?

a). T1 = 900 T2 = 500

b). T1 = 900 T2 = 900

2). What would happen if it was a PFR with S diffusing out?

Answer 1