question archive a two stage process, acetic acid is extracted from water into hexanol in a liquid extraction vessel and the extract is subsequently separated by distillation
a two stage process, acetic acid is extracted from water into hexanol in a liquid extraction vessel and the extract is subsequently separated by distillation
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a two stage process, acetic acid is extracted from water into hexanol
in a liquid extraction vessel and the extract is subsequently separated by distillation. Assume that water is insoluble in hexanol. A mixture of 20% acetic acid, the balance being water is fed to the liquid-liquid extraction vessel. Pure hexanol flowing at the rate of 100kg/h is fed into the column to extract the acetic acid. The water-rich stream leaving the vessel containing 99.5wt% water the balance being acetic acid is taken out. The other hexanol-rich extract stream from the vessel is fed to a distillation column. The composition of the distillate is 96wt% acetic acid and the balance hexanol. The bottoms stream contains 97wt% hexanol and recovers 95% of the hexanol fed to the liquid-liquid extraction vessel.
Draw the flowchart of the process , labeling all the streams exhaustively and delineating all system boundaries (3 marks)
Conduct degree of analysis on all the system boundaries (4 marks)
Determine all the unknown compositions and stream flow rates
