Distillation columns with vertical partitions can separate a feed mixture into 3 or 4 pure fractions.Compared to other column arrangements, their investment costs and energy consumption are lower. Production columns show good results and are easily controlled. Conventional distillation columns produce only 2 pure product streams at the top and at the bottom of the column. Side
Design of distillative separation with due consideration of thermodynamic aspects. This article presents a method for development of advantageous distillative separation equipment by starting from the ideal case of a thermodynamically loss free separation and applying simplifications. Process engineering boundary conditions can serve for clear divisions into individual areas. Possibilities of process integration by a direct thermal and mass linkage are indicated, and promising thermal networking measures are mentioned. The procedure is illustrated by examples.
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