A liquid mixture containing 30 mol% Benzene (1), 34 mol% Toluene (2), and 36 mol% Ethylbenzene (3) is flashed at T = 105
Posted: Fri Jul 08, 2022 6:09 am
A liquid mixture containing 30 mol% Benzene (1), 34 mol% Toluene(2), and 36 mol%Ethylbenzene (3) is flashed at T = 105oC and P = 95kPa.The vapor pressure of the components is obtained by the followingequation:
ln Psat = A - B/(T+C)
where Psat is in kPa and T is in K. Thevalues of A, B, and C are given for all three components in Table1.
(a) Determine the equilibrium compositions of both gas andliquid phases.
(b) Obtain the molar fraction of the liquid phase (L/F) formedin the flash.
(c) How does the molar flow rate of the vapor phase change ifthe feed flow rate (F) becomes double, while the flashthermodynamic condition and feed composition remain unchanged?Justification required.
(d) State the assumptions that were made for thecalculations.
ln Psat = A - B/(T+C)
where Psat is in kPa and T is in K. Thevalues of A, B, and C are given for all three components in Table1.
(a) Determine the equilibrium compositions of both gas andliquid phases.
(b) Obtain the molar fraction of the liquid phase (L/F) formedin the flash.
(c) How does the molar flow rate of the vapor phase change ifthe feed flow rate (F) becomes double, while the flashthermodynamic condition and feed composition remain unchanged?Justification required.
(d) State the assumptions that were made for thecalculations.