3. The catalytic cracking of gas oil A follows 2nd order reaction in a conveyer moving bed reactor. Due to formation of coke independent deactivation occurs. rA=0.6(gcat.)mol.mindm3CA2;kd= 0.72min1. The reactor contains 20kg of catalyst moving at a rate of 10kg/min. The gas oil is fed at a rate of 50mol/min at a concentration of 0.1mol/dm3. Determine the conversion that can be achieved in this reactor. [15]