Multicomponent Distillation 1 A distillation column is separating ethane, propane, and n-butane at 5 atm. Operation...

Multicomponent Distillation 1

A distillation column is separating ethane, propane, and n-butane at 5 atm. Operation is at total reflux. We want a 98.9% recovery of ethane in the distillate and a 99.8% recovery of n-butane in the bottoms. Propane is a sandwich component (e.g., in between light and heavy keys). The feed is a saturated liquid at 100 kmol/h composed of 30.0 mol% ethane, 33.0 mol% propane and 37.0 mol% n-butane. You may assume relative volatilities are constant, α_EB = 13.14, and α_PB = 3.91.

a) At total reflux find NMIN.

b) At total reflux find the fractional recovery of propane in the distillate.

c) At total reflux find distillate flowrate D.

Expert Solution

Amanda K answered 7 months ago

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