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

G. Modla

Energy, 2013, vol. 50, issue C, 103-109

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.

Keywords: Energy saving; Dividing-wall column; Genetic algorithm; Separation of azeotropes; Optimization (search for similar items in EconPapers)
Date: 2013
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Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:50:y:2013:i:c:p:103-109

DOI: 10.1016/j.energy.2012.12.011

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