Energy saving methods for the separation of a minimum boiling point azeotrope using an intermediate entrainer

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

In this work two energy saving methods are presented for the separation of a minimum boiling point azeotrope by using an intermediate entrainer. Extractive distillation column configurations with conventional, thermally integrated and dividing-wall columns are used for comparison. These configurations are designed, rigorously simulated and optimized to minimize the Total Annual Cost and to reduce the energy requirement. A novel simple method is proposed based on a Genetic Algorithm to determine the main design and operation parameters of the dividing-wall column. The optimization algorithm is written in Excel Macro interconnected with the ChemCad process flow-sheet simulator. In terms of total annual costs, the extractive dividing-wall column was found to be the most economical scheme, followed by the thermally integrated and conventional extractive distillation methods.

Original languageEnglish
Pages (from-to)103-109
Number of pages7
JournalEnergy
Volume50
Issue number1
DOIs
Publication statusPublished - Feb 1 2013

Fingerprint

Azeotropes
Boiling point
Energy conservation
Distillation columns
Distillation
Macros
Costs
Simulators
Genetic algorithms

Keywords

  • Dividing-wall column
  • Energy saving
  • Genetic algorithm
  • Optimization
  • Separation of azeotropes

ASJC Scopus subject areas

  • Energy(all)
  • Pollution

Cite this

Energy saving methods for the separation of a minimum boiling point azeotrope using an intermediate entrainer. / Modla, G.

In: Energy, Vol. 50, No. 1, 01.02.2013, p. 103-109.

Research output: Contribution to journalArticle

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