1984 Volume 17 Issue 4 Pages 400-405
A theoretical approach to separation performance of ternary distillation by a wetted-wall column is taken with due consideration to the effect of simultaneous heat and mass transfer.
A new method for prediction of separation performance of ternary distillation is proposed by use of theoretical solutions of the Graetz-Nusselt problem. Predicted axial distributions of liquid concentrations, reflux flow rates and temperatures in the column show good agreement with experimental data.
Distillation paths are sensitive to the amount of vapor partially condensed in the column but less sensitive to vapor flow rates and column lengths.
Distillation paths predicted by the present method show good agreement with the data for various ternary systems over wide ranges of operating conditions.
