On the Calculation of the Multi-component Distillation

Abstract

A new iterative method is developed for solving problems of the product distribution and the composition and temperature profile in the column for multi-component distillation by the plate-to-plate calculation. In the proposed method, it is assumed only that the distillate and the bottoms composition are equal to the feed composition at the start of the calculation. This method employs Thiele-Geddes equations for plate-to-plate calculation from the top and bottom of the column to feed plate, and the θ-method for the convergence. Various cases were computed by this method.
This method is simple and insures rapid convergence to solve problems of multi-component distillation.