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Automatic synthesis of distillation processes for the separation of heterogeneous azeotropic multi-component mixtures
Publikationstyp
Conference Paper
Date Issued
2020-08
Sprache
English
Author(s)
TORE-URI
First published in
Number in series
48
Start Page
1009
End Page
1014
Citation
Computer Aided Chemical Engineering 48: 1009-1014 (2020)
Contribution to Conference
Publisher DOI
Scopus ID
Publisher
Elsevier
ISBN
978-0-12-823377-1
The separation of azeotropic mixtures is a complex task that is frequently addressed by means of graphical analysis of residue curve maps and trial-and-error flowsheet simulations. While miscibility gaps in heterogeneous mixtures result in considerably more complex phase behaviour, the possible exploitation of a combination of decantation and distillation bears the potential for efficient separation processes. In order to enable an automatic generation of alternative separation sequences with closed recycle loops the current article presents an extension of a previously developed algorithmic framework for process synthesis of homogeneous distillation processes. This extension includes the computation and characterization of heterogeneous azeotropes and the analysis of the topology of the system, as well as an extended split feasibility algorithm, which also accounts for decantation at different temperature levels. The approach is fully algorithmic and includes a shortcut-based computation of the energy demand of the generated flowsheet variants.
Subjects
conceptual design
flowsheet optimization
heteroazeotropic distillation
DDC Class
500: Science