Journal
COMPUTERS & CHEMICAL ENGINEERING
Volume 33, Issue 11, Pages 1841-1850Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compchemeng.2009.04.011
Keywords
Energy savings; Distillation; Intensified systems; Stochastic optimization
Funding
- Universidad de Guanajuato
- CONACyT
- CONCyTEG (Mexico)
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The design and optimization of a coupled multicomponent distillation system is a non-linear and multivariable problem. The complexity of this kind of problem results in high solving difficulty. This paper addresses the application of genetic algorithms to the optimization of intensified distillation systems for quaternary distillations. We used a multiobjective genetic algorithm with restrictions coupled to the Aspen Plus (TM) process simulator for the evaluation of the objective function. Several mixtures to test the effect of relative volatilities of feed mixtures on energy consumption, second law efficiency, total annual cost and theoretical control properties have been studied. Numerical performance shows that this design tool is robust and suitable for the design of coupled multicomponent distillation sequences. (C) 2009 Elsevier Ltd. All rights reserved.
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