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Efficient generalized shortcut distillation model with improved accuracy for superstructure‐based process synthesis
Author(s) -
Ryu Joonjae,
Maravelias Christos T.
Publication year - 2020
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.16994
Subject(s) - distillation , superstructure , flexibility (engineering) , process (computing) , computer science , fractionating column , flow (mathematics) , range (aeronautics) , key (lock) , column (typography) , mathematical optimization , algorithm , process engineering , mathematics , engineering , chemistry , telecommunications , statistics , geometry , computer security , structural engineering , organic chemistry , frame (networking) , aerospace engineering , operating system
Abstract We propose a general shortcut distillation column model that can address a wide range of types of separations including nonsharp/sloppy splits. The model can automatically identify key components and estimate the energy requirement of a desired separation in the presence, potentially, of components with zero flow rates. To obtain more practical column height and vapor flow rates, we augment the model with constraints inspired by the Fenske equation. We also propose valid constraints to enhance the computational performance of the proposed model. Due to its flexibility and computational efficiency, the proposed model can be readily used for superstructure‐based process synthesis.