Colina et al. (1970) proposed the following rate expression for SO2 oxidation in the presence of vanadium-pentoxide catalyst.

where, 

Assume the following:

• Inlet rate of SO2 = 100 kmol/hr
• Inlet oxygen to SO2 mole ratio = 2
• Inlet temperature = 420 C
• Inlet pressure = 3 atm

Perform the following calculations

1. Estimate the mass of catalyst (derive an explicit expression, show the steps in the answer book) for a SO2 conversion of 0.4.
2. Solve any one

   of the following

   1. Include the above kinetics and numerically integrate the equations assuming an Ideal gas behaviour, to find the mass of the catalyst for a conversion of 0.4
      OR

   2. Simulate a single PFR in DWsim with the following bed parameters

      1. Catalyst loading: 330 kg/m^3
      2. Particle diameter: 5 mm
      3. Void fraction: 0.5
      4. Reactive volume 6 m^3
      5. Diameter of tube 2.5 m

3. Reaction rate expression: In the text box below

   1. Copy paste the python expression for the reaction_rate() function
      OR
   2. Copy paste the DWsim expressions for the reaction rate

4. Calculated values

   : Enter in the box below

   1. Estimated mass of catalyst (in kg):
   2. Numerically integrated mass of catalyst (in kg): 
      OR

   3. DWsim calculation of 

      1. Outlet conversion
      2. Outlet temperature

5. Complete script

   : In the file attachment below

   1. Upload the entire python script
      OR
   2. Upload the dwsim file (dwxmz)

Permitted resources

1. Python code template provided in the course
2. DWsim file of solved example problem

Resources not permitted, examples:

1. any local or online code editor or IDE that is linked with a AI based code generator
2. any chatbot or search engine that provides codes or steps of coding logic
3. codes written by other students

Check the following equation for any mistakes and comment on them.  Identification of all the variables and their units or dimensions is needed for any justification.

Write your answer on the Answer paper, with clearly identified question number and page number.

Write the page number in the box below.

If the pressure drop in a packed bed reactor increases then the overall rate would increase.

True or False? Justify your answer. No credits without justification. 

(write your answer in the text box below)

Multi-tubular reactor can be one of the options if reaction is reversible endothermic.

True or False? Justify your answer. No credits without justification. 

(write your answer in the text box below)

If catalyst deactivates, one should use fluidised, entrained or moving bed reactor.

True or False? Justify your answer. No credits without justification. 

(write your answer in the text box below)

Which of the following is true about the rate of reaction?

In reaction systems with multiple parallel reactions producing byproducts, what potential negative consequences are mentioned regarding catalysts?

When choosing a reaction path, besides economic potential and byproduct formation, what other factors should be considered?

Which of the following aspects are significantly impacted by good reactor performance in process design?

In an ideal-batch reactor, which of the following statements are true?