Use the data and reaction in Problems P11-4A and P12-7B for the following reaction: A+B C+D

Question:

Use the data and reaction in Problems P11-4A and P12-7B for the following reaction: A+B → C+D
(a) Plot and then analyze the conversion, Qr, Qg, and temperature profiles up to a PFR reactor volume of 10 dm3 for the case when the reaction is reversible with KC = 10 m3/kmol at 450 K. Plot and then analyze the equilibrium conversion profile.
(b) Repeat (a) when a heat exchanger is added, Ua = 20 cal/m3/s/K, and the coolant temperature is constant at Ta = 450 K.
(c) Repeat (b) for both a co-current and a countercurrent heat exchanger. The coolant flow rate is 50 g/s, CPc = 1 cal/g · K, and the inlet coolant temperature is Ta0 = 450 K. Vary the coolant rate (10(d) Plot Qr and Ta as a function of V necessary to maintain isothermal operation.
(e) Compare your answers to (a) through (d) and describe what you find. What generalizations can you make?
(f) Repeat (c) and (d) when the reaction is irreversible but endothermic with ΔHRx°=6000⁢ cal/mol. Choose Ta0 = 450 K.

Data from Problems P11-4A

The elementary, irreversible, organic liquid-phase reaction A + B → C is carried out adiabatically in a flow reactor. An equal molar feed in A and B enters at 27°C, and the volumetric flow rate is 2 dm3/s and CA0 = 0.1 kmol/m3.
Additional information:HAO(273K)* =-20 kcal/mol, HBo(273xK)-15 kcal/mol,HCo(273K) =-41x kcal/mol CPA=CPB=15cal/mol Kix CPC=30x

PFR
a. Plot and then analyze the conversion and temperature as a function of PFR volume up to where X = 0.85. Describe the trends.
b. What is the maximum inlet temperature one could have so that the boiling point of the liquid (550 K) would not be exceeded even for complete conversion?
c. Plot the heat that must be removed along the reactor (Q˙ vs. V) to maintain isothermal operation.
d. Plot and then analyze the conversion and temperature profiles up to a PFR reactor volume of 10 dm3 for the case when the reaction is reversible with KC = 10  m3/kmol at 450 K. Plot the equilibrium conversion profile. How are the trends different than part (a)?

CSTR
e. What is the CSTR volume necessary to achieve 90% conversion?

BR
f. The reaction is next carried out in a 25 dm3 batch reactor charged with NA0 = 10 moles. Plot the number of moles of A, NA, the conversion, and the temperature as a function of time.

Data from Problems P12-7B

Use the data in Problem P11-4A for the following reaction. The elementary, irreversible, organic liquid-phase reaction
A + B → C is carried out in a flow reactor. An equal molar feed in A and B enters at 27°C, and the volumetric flow rate is 2 dm3/s and CA0 = 0.1 kmol/m3.
Additional information:
HA (273K)=-20kcal/mol,HB (273K)=-15kcal/mol, HC (273K)=-41kcal/molCPA=CPB-15 cal/mol KCPC-30 cal/mol(a) 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 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.
(d) Countercurrent heat exchanger Ta.
(e) Adiabatic operation
(f) Make a table comparing all your results (e.g., X, Xe, T, Ta). Write a paragraph describing what you find.
(g) Plot Qr and Ta as a function of V necessary to maintain isothermal operation.

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