PLEASE SOLVE BOTH A & B

SUBJECT : CHEMICAL REACTION ENGINEERING
PLEASE SHOW THE FULL METHOD WITH EXPLANATION

THANKYOU

QUESTION 1 (25 Marks] It is desired to build a packed bed reactor filled with porous spherical catalyst particles of 1.2cm in diameter (pt is 2000 kg/m², effective diffusivity is 2 x 10-6 m-/s) to treat Imºst of feed gas at 336°C and 1 atm to achieve 80% of conversion. The bed porosity and the internal surface area of the catalyst is 0.35 and 327m².g-respectively. The rate constant is 1.35x10-7m².m’s-1 Assuming the reaction is first order reaction and the external diffusion resistances are negligible, a) Analyze whether the reaction is controlled by internal diffusion. (12 Marks) b) Determine the weight of catalyst and the length of reactor needed for the reactor to achieve the desired conversion. Given Ac = 5.0 x 10-?m (8 Marks)