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QUESTION A stream of 1 0 0 kmol / h of ethanol ( 5 0 mol % ) and n - propanol ( 5 0
QUESTION
A stream of kmolh of ethanol mol and npropanol mol at room temperature K and atmospheric pressure
It is continuously fed to a distillation column. The pressure drop in the column is negligible and the rift rate for the column is
used. As a result of the separation process, mol ethanol and mol npropanol in the feed stream are
The distillate stream is required to leave the column.
a Set up a continuous distillation column simulation using Shortcut column in ChemCad simulation software.
Number of racks, minimum number of racks, location of feed rack, minimum and calculated reflux rate, distillate and base
Find the molar flow rates of the currents kmolhour and the thermal loads of the boiler and condenser kJh
b For the same process conditions feed current, reflux rate change the parameters of the column you designed above number of shelves,
Set up an SCDS distillation column design using the location of the feed rack. Find the compositions of distillate and base streams kmolhour Calculate the thermal loads kJh of the boiler and condenser. Assume the percentage recovery of ethanol is as in the question above and compare the percentage recovery of npropanol with the previously calculated value in the same case.
Select K:UNIFAC, H:PengRobinson as thermodynamic model.
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