Ethanol is produced commercially by the hydration of ethylene: C,H.(g) + H2O(v) = C,HOH(V) Some of the product is conver

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Ethanol Is Produced Commercially By The Hydration Of Ethylene C H G H2o V C Hoh V Some Of The Product Is Conver 1 (26.65 KiB) Viewed 11 times

Ethanol is produced commercially by the hydration of ethylene: C,H.(g) + H2O(v) = C,HOH(V) Some of the product is converted to diethyl ether in the undesired side reaction 2 CH3OH(v) = (CH:):01 - H2O1v) The combined feed to the reactor contains 53.7 mole% CH. 36.7% H.O and the balance nitrogen which enters the reactor at 310°C. The reactor operates isothermally at 310'C. An cthylene conver- sion of 5% is achieved, and the yield of ethanol (moles ethanol produced mole ethylene consumed) is 0.900. Data for Diethyl Ether AH = -272.8 kJ/mol for the liquid AH. - 26.05 kJ/mol (assume independent of T) C [kJ/mol-°C)] = 0,08945 + 40.33 X 10-T(°C) -2.244 x 10-'T? (a) Calculate the reactor heating or cooling requirement in kJ/mol feed. (b) Why would the reactor be designed to yield such a low conversion of ethylene? What process- ing step (or steps) would probably follow the reactor in a commercial implementation of this process?