3. G2 We are separating a mixture of methanol and water in a flash drum at 1 atm pressure. Equilibrium data are listed in Table 2-7. a. Feed is 60 mole % methanol, and 40 % of the feed is vaporized. What are the vapor and liquid mole fractions and flow rates? Feed rate is 100 kg moles/hr. Marip 64 5 . 517 373 11 b. If the feed is 30 mole % methanol and we desire a liquid product that is 20 mole % methanol, what V/F must be used? For a feed rate of 1,000 lb moles/hr, find product flow rates and compositions. c. We are operating the 27 de De flash drum so that weten times and the liquid mole fraction is 45 mole % methanol. L 1500 kg moles/hr, and V/F = 0.2. What must the flow rate and composition of the feed be? d. E. If z = 0.4, p = 1 atm, and Tdrum - 77 C, find V/F, Xm, and Ym 4. G2 :An equimolar mixture of ethane, propane, n- butane, and n-pentane is subjected to flash vaporization at 150_F and 205 psia. What are the expected amounts and compositions of the products? Is it possible to recover 70% of the ethane in the vapor by a single-stage flash at other conditions without losing more than 5% of nC4 to the vapour? 720 77 05 0 VES 979 MS