Optimum design of Petlyuk and divided-wall distillation systems using a shortcut model

An optimization approach for fully thermally coupled distillation systems for the separation of ternary mixtures is presented. The thermally coupled schemes considered here can be implemented in the form of the original Petlyuk arrangement (with an external prefractionator) or the modified Kaibel ar...

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Bibliographic Details
Published in:Chemical engineering research & design 2010-10, Vol.88 (10), p.1405-1418
Main Authors: Ramírez-Corona, Nelly, Jiménez-Gutiérrez, Arturo, Castro-Agüero, Angel, Rico-Ramírez, Vicente
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Chemical engineers
Columnar structure
Design engineering
Distillation
Divided-wall column
Exact sciences and technology
Mathematical models
Nonlinear programming
Optimization
Petlyuk system
Thermally coupled distillation
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Summary:An optimization approach for fully thermally coupled distillation systems for the separation of ternary mixtures is presented. The thermally coupled schemes considered here can be implemented in the form of the original Petlyuk arrangement (with an external prefractionator) or the modified Kaibel arrangement (in the form of a divided-wall column). The approach uses a shortcut design method that allows the system to be modeled as a nonlinear programming problem. Given the practical interest in divided-wall column arrangements, special attention is given in this work to this type of structure. Several cases of study are presented to show the applicability of the proposed approach.
ISSN:0263-8762
DOI:10.1016/j.cherd.2010.02.020