The zero-order exothermic liquid-phase reaction
A→B
is carried out at 85 °C in a jacketed 0.2-nv3 CSTR. The coolant temperature in the reactor is 32 °F. The heat-transfer coefficient is 120 W/m2-K. Determine the critical value of the heat-transfer area below which the reactor will run away and explode [Chem. Eng., 97(10), 54 (1984)].
Additional information:
k = 1.127 kmol/m3 • min at 40 °C
k = 1.421 kmol/m3 • min at 50 °C
The heat capacity of the solution is 4 J/°C/g. The solution density is 0.90 kg/dm3. The heat of reaction is −500 J/g. The feed temperature is 40 °C and the feed rate is 90 kg/min. MW of A = 90 g/mol.
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