3. A distillation column is initially designed to separate a mixture of toluene and xylene at around ambient temperature (say, 100C ) and pressure (say, 1 barg). The column has 20 stainless steel valve trays and is 2m in diameter and 14m tall. Determine the purchased cost and the bare module cost using a CEPCI=582 (10 points). Determine the purchased cost and the bare module cost for a similar tower that needs to operate at 20 barg (10 extra points)