A stream of aqueous methanol having 45mol % methanol (CH3OH) is to be separated into atop product having 96mol% methanol and a bottom liquid with 4%methanol. The feed is at its boiling point and the operating pressure is 101.3kpa. a reflux ratio is 1.5. a- Determine the number of ideal trays. deb- Find the number of real trays if the overall tray efficiency is 40%. c- Find the minimum reflux ratio for this separation. Stufe d- Determine the number of ideal trays at the feed is partially vaporized (65% vapor). The equilibrum data for the methanol-water system are given below: X y 0 0 0.90 0 95 1.0 0.02 0.04 0.06 0.08 0.10 0 20 0 30 0.40 0.50 0 60 0 70 0 80 0.134 0.23 0 304 0.365 0 418 0.579 0.665 0 729 0 779 0 825 0.87 0.915 0.958 0979 1.0

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