Question: 8. In the Keyes process for making absolute alcohol from a feed of alcohol containing 5% water and 95% alcohol, a third component benzene is

8. In the Keyes process for making absolute alcohol from a

8. In the Keyes process for making absolute alcohol from a feed of alcohol containing 5% water and 95% alcohol, a third component benzene is added to the alcohol feed. Benzene lowers the volatility of alcohol and takes the entire water impurity to the overhead product as a constant boiling mixture of composition 18.5% alcohol, 7.5% water and 74% benzene. The bottom product from the column is absolute alcohol ( 100% alcohol).Compute the amount of benzene and impure alcohol required for the production of 2500kg absolute alcohol. (8 Marks)[CO02]

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