Exercise 7.9: A hollow-cylinder catalyst pellet in a fixed-bed reactor Estimate the mass of catalyst required in an isothermal fixed-bed reactor for the second-order reaction. Ak1Br=k1cA2k1=1.21105cm3/mols The f eed is pure A at a molar flowrate of 15mol/s, the total pressure.is 3.0atm and the temperature is 550K. The reactor achieves 90% conversion of A. The catalyst is a hollow cylinder with an outer diameter of 1.3cm, an inner diameter of 0.5cm, and a length of 0.7cm. The pellet density p=0.73g/cm3 and the bed density B=0.58g/cm3. The effective diffusivity of A is 0.008cm2/s and may be assumed constant. You may assume the bulk and pellet surface concentrations are equal. Exercise 7.9: A hollow-cylinder catalyst pellet in a fixed-bed reactor Estimate the mass of catalyst required in an isothermal fixed-bed reactor for the second-order reaction. Ak1Br=k1cA2k1=1.21105cm3/mols The f eed is pure A at a molar flowrate of 15mol/s, the total pressure.is 3.0atm and the temperature is 550K. The reactor achieves 90% conversion of A. The catalyst is a hollow cylinder with an outer diameter of 1.3cm, an inner diameter of 0.5cm, and a length of 0.7cm. The pellet density p=0.73g/cm3 and the bed density B=0.58g/cm3. The effective diffusivity of A is 0.008cm2/s and may be assumed constant. You may assume the bulk and pellet surface concentrations are equal