5. A non-catalytic heterogeneous reaction 2NaCl+HO + SO3 Na2SO4+2HCI is occurring in an up-flow reactor. In a laboratory test, 85% conversion of 88-105 m particle has been observed to take 10 s. Solid hold-up is 0.01. Chemical reaction is controlling. The RTD data and size analysis data are as follows: Particle size (um) Weight fraction Residence time t/T 0.6 0.9 105-125 1.3 Determine the average conversion of NaCl to Na2SO4. Will there be any change in the conversion if a down- flow reactor is used? Justify your answer. Data: Solid feed rate: 450 kg/min; D-0.6m; H-9.1m and p=2100 kg/m. Show all derivations, wherever necessary. [10] 50-60 70-80 0.4 0.4 0.2