Calculate the conversion when the reaction is carried out adiabatically in one 500-dm3 CSTR and then compare the results with the two adiabatic 250-dm3 CSTRs in series. The reversible reaction (part (d) of P11-4A) is now carried out in a PFR with a heat exchanger. Plot and then analyze X, Xe, T, Ta, Qr, Qg, and the rate, –rA, for the following cases: (b) Constant heat-exchanger temperature Ta
(c) Co-current heat exchanger Ta (Ans.: At V = 10 m3 then X = 0.36 and T = 442 K)
(d) Countercurrent heat exchanger Ta (Ans.: At V = 10 m3 then X = 0.364 and T = 450 K)