The following results were obtained at tray n from a rate based calculation at 14.7 psia, for a ternary mixture of acetone (1), methanol (2), and water (3) in a sieve-tray column assuming that both phases are perfectly mixed.

The products of the computed gas-phase, binary mass-transfer coefficients and interfacial area from the Chan-Fair correlations are as follows in units of lbmol/(h-unit mole fractions).

The computed vapor rates are V, = 1,200 lbmol/h and V_n+l = 1,164 lbmol/h. Determine:

(a) The component molar diffusion rates.

(b) The mass-transfer rates.

(c) The Murphree vapor-tray efficiencies.

Transcribed Image Text:

Ун 0.5291 Уп+1 K. Component Xn Уп 0.4913 0.3683 0.4106 0.4389 1.507 0.4203 0.4070 0.900 0.4487 0.0884 0.0639 0.1505 0.3247 0.1830 3.