The gas-phase elementary isomerization A → B is carried out at 20 atm in a fluidized CSTR (below) containing 100 kg of catalyst where 50% conversion is achieved. Po=20 atm FA 100kg P=20 atm X=0.5 Someone proposed to replace the CSTR with a packed bed reactor (PBR, below), the entering pressure was 20 atm and the exit pressure was found to be 10 atm. Po=20 atm P=10 atm FA X=? (100kg) T (1) What would be the conversion if No pressure drop for the PBR (10 points)? (2) What will be the conversion in the new PBR with pressure drop (P=10atm) (30 points)? (3) Someone wants to optimize the catalyst packing by understanding the size effect of catalyst particles. Plot the conversion (X) as a function of particle diameter (dp) assuming everything else is unchanged. Why does the X-dp curve look the way it does? (10 points) A pressure drop dominate Intemal diffusion inside catalysis dominate. Dp Dp, opt.