Additional Homework Problems

CDP2-A_B

For the irreversible gas-phase reaction:

the following correlation was determined from laboratory data (the initial concentration of A is 0.2 g mol/L):

The volumetric flow rate is 5 m³/s.

1. Over what range of conversions are the plug-flow reactor and CSTR volumes identical?

2. What conversion will be achieved in a CSTR that has a volume of 90 L?

3. What plug-flow reactor volume is necessary to achieve 70% conversion?

4. What CSTR reactor volume is required if effluent from the plug-flow reactor in part (c) is fed to a CSTR to raise the conversion to 90%?

5. If the reaction is carried out in a constant-pressure batch reactor in which pure A is fed to the reactor, what length of time is necessary to achieve 40 % conversion?

6. Plot the rate of reaction and conversion as a function of PFR volume.

7. Critique the answers to this problem.

Solution