1. August 26, 2010 1 Vapor / Liquid Equilibrium Using HYSYS Prepared by: A.N.Tabish Lab. Engineer / Lecturer Department of Chemical Engineering UET, City Campus, Lahore tabish288@yahoo.com
2. 2 Example # 10.3:* For the system methanol (1) / methyl acetate (2) , the following equations provide a reasonable correlation for the activity coefficient Where, In addition following equations provide vapor pressures: Where T is in kelvin and the vapor pressure are in kPa. * J.M.Smith, H.C.Van Ness and M.M.Abott (2005), “Introduction to Chemical Engineering Thermodynamics”, Ed. 7, pp. 359, McGraw Hill August 26, 2010 tabish288@yahoo.com
3. August 26, 2010 3 CALCULATE: P and {y1}, for T = 318.15 K and {x1}= 0.25 P and {x1}, for T = 318.15 K and {y1}= 0.60 T and {y1}, for P = 101.33kPa and {x1}= 0.85 T and {x1}, for P = 101.33kPa and {y1}= 0.40 tabish288@yahoo.com
35. August 26, 2010 22 Example # 10.4:* For a mixture of 10 mol-% methane, 20 mol-% ethane, and 70 mol-% propane at 50 (oF), determin: The dew point pressure The bubble point pressure * J.M.Smith, H.C.Van Ness and M.M.Abott (2005), “Introduction to Chemical Engineering Thermodynamics”, Ed. 7, pp. 364, McGraw Hill tabish288@yahoo.com
36. August 26, 2010 23 Home Work Task: Assuming the validity of Raoult's law, do the following calculations for the benzene (l)/toluene (2) system: For the system ethyl ethanoate (1) and n-heptane (2)at 343.15 K (70"C) BUBL P calculation for T = 343.15 K (70°C), x1 = 0.05. DEW P calculation for T = 343.15 K (70°C), y1 = 0.05. tabish288@yahoo.com
37. August 26, 2010 24 Home Work Task Contd…. Make the following VLE calculations for the methane (l) / ethylene (2) / ethane (3) system: tabish288@yahoo.com
