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please solve within 20 mins! A mixture of ethane, propane, n-butane, n-pentane, and n-hexane is to be separated to relatively pure components. If the first

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please solve within 20 mins!

A mixture of ethane, propane, n-butane, n-pentane, and n-hexane is to be separated to relatively pure components. If the first column used is to recover 97% of propane in distillate and 96% of n butane as bottoms, what is the total number of stages assuming N=2Nmin ? (Hint: Use Fenske equation to find Nmin )

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