The liquid phase reaction:
A+B→C
Follows an elementary rate law and is carried out isothermally in a flow system. The concentrations of A and B in the feed streams are 2 mol/L before mixing. The volumetric flow rate of each stream is 5 dm3 min, and the entering temperature is 300 K. The streams are mixed immediately before entering. Two reactors are available. One is a gray 200 dm3 CSTR that can be heated to 77 °C or cooled to 0 °C. The other is a white 800 dm PFR operated at 300 K that cannot be heated or cooled but may be painted black or red. Note that k = 0.07 dm3/mol/min at 300 K and E-20 kcal/mol
A) Which reactor would and what conditions do you recommend? Explaining the reason for your choice. Back up your reasoning with calculations.
B) How long would it take to achieve 90% conversion in a 200 dm3 batch reactor with initial concentrations of A and B at 1 mol/L and operated at 77 °C?
C) What would be your answer to part (b) if at 0 °C?
D) What conversion would be obtained if the CSTR and PFR were operated at 300 K and connected in series? In parallel with 5 dm min of the mixture to each?
E) What can you say about the various reactor types based on the above?