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

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Ethylene oxide (C2H4O) is made by the catalytic reaction betweenethylene (C2H4) and oxygen.Fresh ethylene, pure oxygen, andrecycled ethylene are mixed to give a reactor feed gas containing55%C2H4 which enters the reactor at 1 atm absolute and 300 oC. Fromtest experiments, the single-pass conversion of ethylene in thereactor is 54% and, of this, 72% goes to ethylene oxide and thebalance decomposes to CO2 and H2O. Most of the unreacted ethyleneis separated from the reactor exit stream and is recycled, a pureethylene oxide product stream is produced, and the remainingmaterials leave in a waste stream which analyses 9.0% ethylene. Theproduction rate of ethylene oxide is 26,430 kg/day.Determine: a)the molar flow rate of fresh ethylene feed; b) the flow rate of therecycle stream; c) the fraction of feed oxygen wasted; and d) thepercent excess oxygen

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4.1 Ratings (513 Votes)

Let F Fresh feed R Recycle C2H4 and M mixed feed molarmass of C2H4O 46 moles of C2H4O 2643046 5745 kg molesdayTHe reactions are C2H4 05O2 C2H4O andC2H43O22CO23H2OC2H4 in mixed feed M055 Single pass conversion M055054C2H4O produced See Answer

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