n-Heptane / Toluene Separation. A feed of 250 mol/hr containing 72 mole % n-heptane and 28 mole % toluene is to be fractionated at 101.325kPa (abs) in order to form a distillate containing 96 mole % n-heptane and a bottoms containing 10.0 mole % n-heptane. Equilibrium Data for the system at 101.325kPa are available. For each of the following feed conditions compare and contrast reflux ratios of 4.0:1.0 and 14:1.0. Assuming that the feed mixture is liquid at its boiling point (e.g. a saturated liquid) determine ... a) Calculate the flowrates (mol/hr) of the distillate and bottoms. b) Determine the theoretical number of trays and the feed tray number for the specified operation. c) Determine the minimum reflux ratio, Rmin and the minimum number of theoretical trays at total reflux. d) Based on the two reflux ratios how does the number of stages change for the saturated liquid? Assuming that the feed mixture is saturated vapor determine ... e) Determine the theoretical number of trays and the feed tray number for the specified operation. f) Determine the minimum reflux ratio, Rmin and the minimum number of theoretical trays at total reflux. g) Based on the two reflux ratios how does the number of stages change for the saturated vapor? Temperature T(F) T(K) 209.3 371.6 211.7 373.0 214.2 374.3 TC) 98.5 99.8 Vapor Pressure n-heptane kPa 101.400 105.5 109.7 114.1 Toluene kPa 70.745 73.732 y 1.000 1.000 0.871 0.906 101.2 76.818 0.747 0.808 ! 216.6 375.7 80.005 0.707 0.628 0.513 ! 118.6 0.600 102.5 103.9 105.2 106.6 83.297 86.694 0.403 219.0 221.5 223.9 226.4 228.8 0.490 0.297 0.374 377.0 378.4 379.7 381.1 382.4 383.8 107.9 123.2 127.9 132.8 137.9 143.1 0.255 90.200 93.817 97.548 101.394 109.3 110.7 0.194 0.095 0.000 0.130 0.000 231.2 1