Study of Multicomponent Batch Distillation Calculation with Parameters Estimated using Simple Distillation

概要

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The compositions and the physical properties of mixtures are required to simulate multi-component batch distillation operations. In this study, temperature and accumulated distillate were measured in function of time by use of a simple distillation apparatus. Initial compositions and physical parameters were estimated from this measurement data by a dynamic mathematical model, to examine to what extent batch distillation operations can be predicted. For an ideal and a non-ideal solution system, the following three types of value estimation were examined: (I) the compositions only, (II) the parameters of one component, and (III) the compositions and parameters of one component. The compositions could be estimated with sufficient accuracy. As for the physical properties, after devising a method for reducing the number of parameters, it was found that the batch distillation operation can be industrially designed from the estimated results.