Ethylene oxide (C2H4O) is produced by the catalytic oxidation of ethylene (C2H4). That is ethylene is...

Ethylene oxide (C2H4O) is produced by the catalytic oxidation of ethylene (C2H4). That is ethylene is reacted with O2. An undesired side reaction is the combustion of ethylene to CO2 and H2O. The fresh feed to the process consists of oxygen and ethylene. The fresh feed is mixed with a recycle stream, also containing oxygen and ethylene, and fed to the reactor. The feed to the reactor contains a 3:1 molar ratio of ethylene to oxygen. The single pass conversion of ethylene is 20%, and for every 100 moles ethylene consumed in the reactor, 90 moles of ethylene oxide emerge in the reactor products. A multi-unit process is used to separate the products; ethylene and oxygen are recycled to be mixed with the fresh feed; ethylene oxide is sold as a product; and carbon dioxide and water are discarded. Assume a basis of 100 mole of feed to the reactor (not fresh feed to the process).

(a) Determine the moles of fresh feed required and composition of the fresh feed. (b) Determine the moles of ethylene oxide produced and the overall conversion of

ethylene in the process.

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Expert Solution

Amanda K answered 1 month ago

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