Follows an elementary rate law and is carried out isothermally in a flow system. The concentrations of the A and B streams are 2M before mixing. The volumetric flow rate of each stream is 5 dm3 /min and the entering temperature is 300K. The streams are mixed immediately before entering. Two reactors are available. One is a 200 dm3 CSTR that can be heated to 77 °C or cooled to 0 °C, the other is a 800 dm3 PFR operated at 300 K that cannot be heated or cooled. Note that k = 0.07 dm3 /mol min at 300 K and E = 83.7 kJ/mol a) Which reactor and what conditions do you recommend? Explain the reason of your choice (space available, operational complexity). Back up your reasoning with the appropriate calculations b) How long would it take to achieve 90% conversion in a 200 dm3 batch reactor with initial concentrations CA0 = CB0 = 1M after mixing at a temperature of 77 °C?
Follows an elementary rate law and is carried out isothermally in a flow system. The
concentrations of the A and B streams are 2M before mixing. The volumetric flow rate of
each stream is 5 dm3
/min and the entering temperature is 300K. The streams are mixed
immediately before entering. Two reactors are available. One is a 200 dm3 CSTR that can
be heated to 77 °C or cooled to 0 °C, the other is a 800 dm3 PFR operated at 300 K that
cannot be heated or cooled. Note that k = 0.07 dm3
/mol min at 300 K and E = 83.7 kJ/mol
a) Which reactor and what conditions do you recommend? Explain the reason of your
choice (space available, operational complexity). Back up your reasoning with the
appropriate calculations
b) How long would it take to achieve 90% conversion in a 200 dm3 batch reactor with
initial concentrations CA0 = CB0 = 1M after mixing at a temperature of 77 °C?
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