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).

k₁₂ = k₂₁ = 1;750; k₁₃ = k₃₁ = 2;154; k₂₃ = k₃₂ = 2;503
The vapor rates are V_n = 1,200 lbmol/h and V_n+1 = 1,164 lbmol/h.
Determine: 

(a) Component molar diffusion rates; 

(b) Mass-transfer rates; 

(c) Murphree vapor-tray efficiencies.

Transcribed Image Text:

Component Уп 1 2 3 al 0.4913 0.4203 0.0884 Уn+1 кн 0.4106 0.5291 1.507 0.4389 0.4070 0.900 0.1505 0.0639 0.3247 0.3683 0.4487 0.1830