2. CAT2 technology with non-porous catalyst You have invented a completely new catalyst for the CAT2...

  

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2. CAT2 technology with non-porous catalyst You have invented a completely new catalyst for the CAT2 technology. This is based on solid (not porous) catalyst pellets. For this catalyst, the reaction behaves as a reversible reaction (k1 and k2 are the reaction constants) and it is first order with respect to A for the forward reaction and first order with respect to R for the backwards reaction. The reaction stoichiometry (with forward reaction rate constant k and backward reaction rate constant k) is given by k1 A Z 3R K2 and has he reaction is so rapid that mass transfer between the catalyst surface and the bulk fluid is rate limiting. Pressure drop can be neglected. b) You are asked to increase the productivity of this packed bed reactor by doubling the inlet flowrate, but keeping the same conversion of reactant A. The conversion in this case is far from the equilibrium conversion, so the backwards reaction can be neglected. How much larger would the reactor have to be (compared to the case with the original flowrate), if all the other variables remain constant [6] c) For the case b, where the conversion is far from the equilibrium conversion, if you can change any parameter you wish, what parameters would you change to increase the conversion of reactant A? Discuss using equations as appropriate [4] 2. CAT2 technology with non-porous catalyst You have invented a completely new catalyst for the CAT2 technology. This is based on solid (not porous) catalyst pellets. For this catalyst, the reaction behaves as a reversible reaction (k1 and k2 are the reaction constants) and it is first order with respect to A for the forward reaction and first order with respect to R for the backwards reaction. The reaction stoichiometry (with forward reaction rate constant k and backward reaction rate constant k) is given by k1 A Z 3R K2 and has he reaction is so rapid that mass transfer between the catalyst surface and the bulk fluid is rate limiting. Pressure drop can be neglected. b) You are asked to increase the productivity of this packed bed reactor by doubling the inlet flowrate, but keeping the same conversion of reactant A. The conversion in this case is far from the equilibrium conversion, so the backwards reaction can be neglected. How much larger would the reactor have to be (compared to the case with the original flowrate), if all the other variables remain constant [6] c) For the case b, where the conversion is far from the equilibrium conversion, if you can change any parameter you wish, what parameters would you change to increase the conversion of reactant A? Discuss using equations as appropriate [4]