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Unformatted text preview: 1 CHE 4151 Jennings Example: Gas Phase Reactors [ Problem 4 - 7, p.209 in Fogler. (3rd.Ed.) ] The elementary gas-phase reaction (CH 3 ) 3 COOC (CH 3 ) 3 S)) C 2 H 6 + 2 CH 3 COCH 3 is carried out 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 CSTR (b) a PFR (c) If this reaction is to be carried out at 10 atm and 127 C in a batch mode with 90% conversion, what reactor size would be required to process 3600 mol of di- tert-butyl peroxide per day ? (d) Assume the reaction is reversible with K eq = 0.025 mol 2 / L 2 and calculate the equilibrium conversion and then redo (a) through (c) to achieve a conversion that is 90% of the equilibrium conversion....
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