Separation regions and processes of zeotropic and azeotropic ternary distillation

Thermodynamic optimisation of distillation columns

“…In a multicomponent reversible column, only the lightest component can be completely removed from the bottom product, while only the heaviest is removed from the top product. Moreover, distillate and bottom compositions must be located on the line of preferred separation; i.e., a line defined from the feed and its vapour in equilibrium (Stichlmair and Herguijuela, 1992). For most practical multicomponent separation tasks it is therefore impossible to devise a reversible separation scheme based on a single distillation column.…”

Conceptual Design of Azeotropic Distillation Processes

“…Candidate compounds can be selected from established databases based on their selectivity [12]. Further restrictions on their applicability, like the boiling or melting point or the formation of additional azeotropes or even miscibility gaps, can be used for the evaluation of entrainer candidates [13,14]. Alternatively, computer-aided molecular design (CAMD) methods [15] can be employed to systematically identify compounds with desirable properties.…”

Dividing wall columns in chemical process industry: A review on current activities

“…17), a separation of an azeotropic mixture A-B can be realised. A detailed description of this process can be found in [62].…”