Batch distillation

Batch distillation has always been an important part of the production of seasonal, or low capacity and high-purity chemicals.

The head and feints may be thrown out, refluxed, or added to the next batch of mash/juice, according to the practice of the distiller.

Generally, the feasibility studies of batch distillation are based on analyses of the following maps: During the feasibility studies, the following basic simplifying assumptions are made: Bernot et al.[2] used the batch distillation regions to determine the sequence of the fractions.

According to Ewell and Welch,[3] a batch distillation region gives the same fractions upon rectification of any mixture lying within it.

Pham and Doherty in pioneering work[4] described the structure and properties of residue curve maps for ternary heterogeneous azeotropic mixtures.

Lang and Modla[10] extended the method of Pham and Doherty and suggested a new, general method for the calculation of residue curves and for the determination of batch distillation regions of heteroazeotropic distillation.

Lelkes et al.[11] published a feasibility method for the separation of minimum boiling point azeotropes by continuously entrainer feeding batch distillation.