Disjunctive optimization design models for complex liquid-liquid multistage extractors

A new method for the optimal design of multicomponent liquid–liquid extraction processes using multistage countercurrent extractor systems is proposed. The method determines the optimum number of equilibrium stages and flow rates needed to obtain a specified product separation and recovery, and acco...

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Veröffentlicht in:AIChE journal Jg. 47; H. 10; S. 2243 - 2252
Hauptverfasser: Reyes-Labarta, Juan A., Grossmann, Ignacio E.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.10.2001
Wiley Subscription Services
American Institute of Chemical Engineers
Schlagworte:
Applied sciences
Chemical engineering
Exact sciences and technology
Liquid-liquid extraction
Water
Chloroform
Liquid liquid extraction
Multicomponent mixture
Multistage process
Countercurrent flow
Quaternary system
Optimization
Optimal design
Disjunction
Non linear model
Superstructure
Numerical simulation
Acetic acid
In series
Computer aided design
Acetone
ISSN:0001-1541, 1547-5905
Online-Zugang:Volltext
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Zusammenfassung:A new method for the optimal design of multicomponent liquid–liquid extraction processes using multistage countercurrent extractor systems is proposed. The method determines the optimum number of equilibrium stages and flow rates needed to obtain a specified product separation and recovery, and accounts for the possibility of side feed streams and product extractions. A superstructure is proposed that has embedded all potential configurations and interconnections. Based on this superstructure representation, the problem is formulated as an optimization problem using generalized disjunctive programming (GDP) to minimize the total cost of the process, subject to design specifications. The robustness and computational efficiency of the model is illustrated with different cases involving single and complex countercurrent cascades in a quaternary liquid–liquid system.
Bibliographie:ark:/67375/WNG-TFQF3GBN-4
istex:C7513C97E0CA8EDA01FE25B0B4DF1979568FBD9F
ArticleID:AIC690471011
ObjectType-Article-1
SourceType-Scholarly Journals-1
content type line 14
ISSN:0001-1541
1547-5905
DOI:10.1002/aic.690471011