Problem 2 The following liquid phase endothermic first order reaction AB+C with rate constant k is carried out at 300 F in a condensing steam jacketed CSTR. Usually, high pressure steam (600F) is used, making it unnecessary to preheat the feed. However, this steam will soon be replaced with medium pressure condensing steam at 450 F. In order to make up the deficit to maintain the desired CSTR temperature, you suggest that a feed preheater could be used. What is the volumetric flow rate entering the reactor? b) What is the conversion XA using high pressure steam? c) What is the flow rate of product B using high pressure steam? d) In order to maintain the same conversion and product flow rate using the medium pressure steam jacket, to what temperature must the feed be preheated? (Hint: find UA using high pressure steam) a) Data: k, hourl (where T in R) 10 exp(-3200/T) Cpa, Btu/mole-F 60 MWA 110 AH, Btu/mole A (Tref=70F) 13,209 Cp.B, Btu/mole-F 40 MWB 60 Feed Temperature, F (without preheat) 70 Cp.c, Btu/mole-F 35 MWC 50 Feed rate, mole/hour 40 Density A, lbm/ft? 64 CSTR Volume, ft? 25