1993 Volume 19 Issue 1 Pages 69-75
To investigate the behavior of impurities in batch rectification of aqueous ethanol solution, a mathematical model was constructed by considering the conventional assumptions in distillation calculation and also in the characteristics of a trace component. The model includes some adjustable parameters that can be used for adaptation.
A set of equations were derived from the mass balances around a still, a typical plate and a distillate accumulator. It can be solved numerically by a personal computer. The distillation curves of ethanol and trace components can be obtained.
The results of a test calculation show that the present method is useful in analysing the batch rectification in the production of distilled spirit.
