Q4 In The Stripping Section Of The Fractionation Distillation Column A Liquid Mixture Of Benzene Toluene Is To Be Disti 1 (49.91 KiB) Viewed 27 times
Q4 In The Stripping Section Of The Fractionation Distillation Column A Liquid Mixture Of Benzene Toluene Is To Be Disti 2 (22.42 KiB) Viewed 27 times
Q4)In the Stripping section of the fractionation distillation column; a liquid mixture of benzene-toluene is to be distilled in a flash distillation tower at 101.3 kPa pressure. The feed of 100 kg mol/h is liquid and it contains 45 mol % benzene and 55 mol % toluene and enters at 54 °C. A distillate containing 95 mol % benzene and 5 mol % toluene. The reflux ratio is 4: 1. The average heat capacity of the feed is 140 kJ/kg mol. K and the average latent heat 20000 kJ/kg mol. The slope of the q-line equation 8.3. The equilibrium data for this system is given in this Figure. The bottoms containing 10 mol % benzene and 58 kg mol/h are liquid ?Calculate the amount of the liquid before the boiler a Calculate the amount of the returned vapor to the distillation column from the b ?boiler Calculate the number of theoretical trays in the stripping section where these trays.c ?are equivalent to the packed bed height of column 1.95 ?Calculate the value of q for the q-line section.d ?Calculate the boiling point of the feed as a Celsius unit.e ?Calculate the height equivalent for the stripping section f A
Q3) A liquid mixture of benzene-toluene is to be distilled in a flash distillation tower at 101.3 kPa pressure. The feed of 100-kg mol/h is liquid and it contains 45 mol % benzene and 55 mol %, toluene and enters at 327.6 K (54.45 °C or 130°F). A distillate containing 95 mol % benzene and 5 mol % toluene and a bottom containing 10 mol % benzene and 90 mol % toluene is to be obtained. The reflux ratio is 4 1. The average heat capacity of the feed is 159 kJ/kg mol. K (38 BTU/Ib mol "F) and the average latent heat 32 099 kJ/kg mol (13800 BTU/lb mol). The equilibrium data for this system is given in this Figure Pa)Calculate the fraction of the feed liquid that is evaporated b) Calculated the fraction moles of the liquid phase and vapor phase from the equilibrium data 09 24 07 06 V DA 201 12 01
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