The following liquid-phase reaction is carried out in a CSTR with heat exchange: A + B , c The feed stream contains A and B in equimolar ratio. The total molar flow rate is 20 mol/s. The inlet temperature is 325 K, the inlet concentration of A is 1.5 molar, and the ambient temperature in the heat exchanger is 300 K. Calculate the reactor volume necessary to achieve 80% conversion. Additional information U= 80 J/m? s K A=2 m? CPc = 150 J/mol K E=25,000 J/mol k298 =0.014 L/mol-s %3D AHRxn(298)= -10,000 J/mol CPA = CPB= 100 J/mol K

When an exothermic reaction proceeds adiabatically in a mixed flow reactor (MFR), outline and explain the characteristic graph of the energy balance and material balance to show that multiple steady states may exist. Also, explain that among multiple steady states, there is an unstable steady state.

Q1// The elementary liquid-phase reaction A+B C, r=k CA CB is carried out in a batch reactor with a cooling coil to keep the reactor isothermal at 27 °C. The reactor is initially charged with equal concentrations of A and B and no C, CAO = CB0 = 2.0 mol/L. How long does it take to reach 95% conversion? Rate constant 0.01725 L/mol.min =

Follows an elementary rate law and is carried out isothermally in a flow system. Theconcentrations of the A and B streams are 2M before mixing. The volumetric flow rate ofeach stream is 5 dm3/min and the entering temperature is 300K. The streams are mixedimmediately before entering. Two reactors are available. One is a 200 dm3 CSTR that canbe heated to 77 °C or cooled to 0 °C, the other is a 800 dm3 PFR operated at 300 K thatcannot be heated or cooled. Note that k = 0.07 dm3/mol min at 300 K and E = 83.7 kJ/mola) Which reactor and what conditions do you recommend? Explain the reason of yourchoice (space available, operational complexity). Back up your reasoning with theappropriate calculations b) How long would it take to achieve 90% conversion in a 200 dm3 batch reactor withinitial concentrations CA0 = CB0 = 1M after mixing at a temperature of 77 °C?