Applying the Algorithm to an Exothermic Reaction

When we checked the vapor pressure at the exit to the adiabatic reactor in Example 11-3 where the temperature is 360 K, we found the vapor pressure to be about I.S MPa for isobutene, which is greater than the rupture pressure of the glass vessel being used. Fortunately, there is a bank of 10 tubular reactor.s. each reactor is 5 m . The bank reactors are double pipe heat exchangers with the reactants flowing in the inner pipe and with Ua = 5.000 kJ/m h-K. The entering temperature of the reactants is 305 K and the entering coolant temperature is 310 K. The mass flow rate of the 

We shall first solve Pan (a), the co-current heat exchange case first and then make small changes in the Polymath program for Pans (b) through (d). 

The mole balance, rate law. and. stoichiometry are the same as in the adiabatic ca.se previously discussed in Example 11-3 that is. 

Steady State Nonisotherma) Reactor Design—Flow Reactors with Heat Exchange Chapter 12 

For co-current flow, the balance on the heat transfer lluid is 

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