Question

1. The elementary gas-phase reaction (CH3)3COOC(CH3)3 →C2H6+2CH3COCH3 Is carried isothermally in a flow reactor. The specific reaction rate at 50 °C is 10-4 min-¹ and the activation energy is 85 kJ/mol.

Pure di-tert-butyl peroxide enters the reactor at 10 atm and 127 °C and a molar flow rate of 2.5 mol/min. Calculate the reactor volume and space time to achieve 90% conversion in: a) a PFR with no pressure drop. (970 dm³) b) a CSTR with no pressure drop. (4700 dm³) c) A PFR with pressure drop with a = 0.001 dm³. Plot conversion and P/Po (y) versus PFR volume. What are conversion and y when the PFR volume is 500 dm³? Note: part c) is a PFR with a pressure drop. Assume that the Ergun equation is valid for this system (but substitute dV for dW).

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