Ethylene oxide, C2H4O, may be made by passing ethylene, C2H4, and air over a catalyst at 2500C. When the resulting mixture is cooled and passed through water, the ethylene oxide combines with water to form ethylene glycol (CH2OH)2. In one experiment a 5% by volume ethylene – 95% by volume air mixture is passed over the catalyst. Some of the ethylene does not react, some forms ethylene oxide, and some is oxidized completely to form CO2 and water vapor. The entire gas mixture enters directly into an absorption system where it is contacted by water. The gases leaving the absorber contain all the N2, unreacted C2H4, unused O2, and the CO2 formed. They are saturated with water vapor at a partial pressure of 15.4 mm Hg. The total pressure is 730 mm Hg. An Orsat Analysis of the gases leaving the absorber shows 1.075% C2H4, 80.7 % N2 ad 4.30% CO2. One mole of liquid water is fed to the absorber per 100 moles of the gas fed to the catalyst chamber. What is the composition (%mole) of the ethylene glycol-water product formed?
*Stoichiometry
Ethylene oxide, C2H4O, may be made by passing ethylene, C2H4, and air over a catalyst at 2500C. When the resulting mixture is cooled and passed through water, the ethylene oxide combines with water to form ethylene glycol (CH2OH)2. In one experiment a 5% by volume ethylene – 95% by volume air mixture is passed over the catalyst. Some of the ethylene does not react, some forms ethylene oxide, and some is oxidized completely to form CO2 and water vapor. The entire gas mixture enters directly into an absorption system where it is contacted by water. The gases leaving the absorber contain all the N2, unreacted C2H4, unused O2, and the CO2 formed. They are saturated with water vapor at a partial pressure of 15.4 mm Hg. The total pressure is 730 mm Hg. An Orsat Analysis of the gases leaving the absorber shows 1.075% C2H4, 80.7 % N2 ad 4.30% CO2. One mole of liquid water is fed to the absorber per 100 moles of the gas fed to the catalyst chamber. What is the composition (%mole) of the ethylene glycol-water product formed?
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