Work Prob. 13.49 for the NRTL equation. Prob. 13.49 For one of the binary systems listed in
Question:
Work Prob. 13.49 for the NRTL equation.
Prob. 13.49
For one of the binary systems listed in Table 13.10, based on Eq. (13.19) and the Wilson equation, make the following calculations:
(a) BUBL T : P = 101.33 kPa, x1 = 0.3.
(b) DEW T : P = 101.33 kPa, y1 = 0.3.
(c) P, T − flash: P = 101.33 kPa, T = ½ (Tbubble + Tdew), z1 = 0.3.
(d) If an azeotrope exists at P =101.33 kPa, find Taz and xaz1 = yaz1.
Problems 13.43 through 13.54 require parameter values for the Wilson or NRTL equation for liquid-phase activity coefficients. Table 13.10 gives parameter values for both equations. Antoine equations for vapor pressure are given in Table B.2, Appendix B.
Table 13.10
Table B.2, Appendix B.
Eq. (13.19)
Table 13.10: Parameter Values for the Wilson and NRTL Equations Parameters a12, a21, b12, and baj have units of cal-mol-1, and Vị and V2 have units of cm³-mol-!. Wilson Equation NRTL Equation b12 Vị System V2 a12 b21 a Acetone(1) Water(2) Methanol(1) Water(2) 1-Propanol(1) Water(2) 74.05 291.27 1448.01 631.05 1197.41 0.5343 18.07 40.73 107.38 469.55 -253.88 845.21 0.2994 18.07 75.14 775.48 1351.90 500.40 1636.57 0.5081 18.07 18.07 1696.98 -219.39 548.90 0.2920 Water(1) 1,4-Dioxane(2) 715.96 85.71 Methanol(1) 40.73 504.31 196.75 343.70 314.59 0.2981 Acetonitrile(2) 66.30 Acetone(1) 74.05 -161.88 583.11 184.70 222.64 0.3084 Methanol(2) 40.73 Methyl acetate(1) Methanol(2) 813.18 381.46 79.84 40.73 -31.19 346.54 0.2965 Methanol(1) 40.73 1734.42 183.04 730.09 1175.41 0.4743 Benzene(2) 89.41 1556.45 Ethanol(1) Toluene(2) 58.68 210.52 713.57 1147.86 0.5292 106.85
Step by Step Answer:
We must ascertain several characteristics of a binary system under various circumstances in order to solve Prob 1349 with the NRTL equation Well refer ...View the full answer
Introduction To Chemical Engineering Thermodynamics
ISBN: 9781259696527
8th Edition
Authors: J.M. Smith, Hendrick Van Ness, Michael Abbott, Mark Swihart
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