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1. The liquid phase reaction A4 B is to be carried out isothermally in a continuous flow reactor.The entering molar flow rate is 5 mol/min, and the volumetric flow rate is 10 L/min. The reaction rate is given by —rA —— kCA where k —— 0.01 1/min. It is desired to consume 99% of A. Calculate the volume of the plug flow reactor and CSTR necessary for this operation.

2. For the above reaction and conversion, what is the time required in a constant volume batch reactor of volume 1000 L and CA0 —— 0.5 mol/L.

3. Consider the following experimental data for A4 C. Assume that the molar flow rate of A is 0.4 mol/s for an isothermal steady state operation of reactors. Calculate the volume of plug flow reactor and CSTR needed foF 75% conversion.

4. For the above rate data, calculate the time required for conversion in batch reactor for a conversion of 75%. Assume Can —— 1 mol/L.

5. The liquid phase reaction A4 B is to be carried out isothermally in a continuous flow reactor.The entering molar flow rate is 5 mol/min, and the volumetric flow rate is 10 L/min. The reaction rate is given by A kCA where k 3 L/mol-min. It is desired to consume 99% of A. Calculate the volume.

of the plug flow reactor and CSTR necessary for this operation.

6.For the above reaction, what is the time required in a constant volume batch reactor of volume 1000 L and CA0 —— 0.5 mol/L. (Note: you can use MATLAB to integrate).

7. For cases 1 and 3, compute and plot the volume of PFR and CSTR necessary for a conversion of 25%, 50%, 75%, 90%, 99%, and 99.9%. What do you infer?

8. Consider a gas phase reaction carried out isothermally in a flow reactor. The specific reaction rate at 50 °C is 10-4 min-¹, the feed enters the reactor at 10 atm and 127 °C and a molar flow rate of 2.5 mol/min. Calculate the reactor volume and space time to achieve 90% conversion in a PFR. Plot A vs. 1/(-BA).

9. Estimate the volume of CSTR necessary to produce 200 million kg of Ethylene ethylene glycol per year by acid hydrolysis of ethylene oxide at 55 C. The (min) glycol (M) following experimental data on ethylene glycol production is available from a laboratory batch reactor where 500 mL of a 2 M solution of ethylene oxide 0.5 0.145 was mixed with 500 mL of water containing 1% sulfuric acid as catalyst at 1.0 0.270 55 C.1.5 0.375.

10. Write the balance equation for batch reactor. Modify to a usable form 2.0 0.467 with the data given by converting concentration data to conversion 3.0 0.610.

i. Find the rate law by using conversion (Ans: k —— 0.311 min-¹)4.0 0.715

ii. Plot Xvs. 1/(-rA) 6.0 0.848

iii. Estimate the flow rates necessary to produce the product 10.0 0.was

iv. Calculate the volume of CSTR.

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