Answer to Question #154963 in Organic Chemistry for Daniel

Question #154963

Equation 1:       C8H18    →    C4H10    +    2C2H4

Equation 2:        C2H4    +    H2O    →    C2H5OH



(ii)     Describe, as fully as you can, the conditions used for the two reactions to produce ethanol from octane.

Use Equation 1 and Equation 2 to help you with your answer.


1
Expert's answer
2021-01-12T07:03:21-0500

Ethylene and iso-butane react isothermally in a stoichiometric isothermal reactor at 93°C to produce n octane. The key component that limits the reaction conversion is taken as ethylene, with an overall conversion of 98%. The pressure drop across the reactor is specified at 5 psi. The reaction is


2CH + C H2O → C8H18


flash column is added to the reactor effluent to separate the unconverted raw materials from the A desired product. A pressure drop of 2 psi is introduced while the operating temperature is maintained the same as that of the reactor. The more-volatile compounds (ethylene, isobutane, and other impurities) are flashed to the top product stream together with a small portion of the heavier product, n-octane, while the remaining n-octane leaves at the bottom.


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