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Ethylene oxide (C2H4O) is made by the catalytic reaction between ethylene (C2H4) and oxygen.

Ethylene oxide (C2H4O) is made by the catalytic reaction between ethylene (C2H4) and oxygen.Fresh ethylene, pure oxygen, and recycled ethylene are mixed to give a reactor feed gas containing 55%C2H4 which enters the reactor at 1 atm absolute and 300 oC. From test experiments, the single-pass conversion of ethylene in the reactor is 54% and, of this, 72% goes to ethylene oxide and the balance decomposes to CO2 and H2O. Most of the unreacted ethylene is separated from the reactor exit stream and is recycled, a pure ethylene oxide product stream is produced, and the remaining materials leave in a waste stream which analyses 9.0% ethylene. The production rate of ethylene oxide is 26,430 kg/day.Determine: a) the molar flow rate of fresh ethylene feed; b) the flow rate of the recycle stream; c) the fraction of feed oxygen wasted; and d) the percent excess oxygen

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