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J Phys Chem B. 2007 Mar 29;111(12):3178-82. Epub 2007 Mar 7.

Optimal separation sequence for three-component mixtures.

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Pereaslavl-Zalesky, Program System Institute Russian Academy of Sciences, set Botik, Perejaslavl-Zalesky, Russia 152020.


In this paper, the problem of finding the optimal separation sequence for a three-component mixture in a cascade of two binary separation stages is considered. The minimal energy that is needed for a separation in a two-stage mechanical separation subject to a given flow rate of the input mixture is obtained. Optimization is achieved by selecting the optimal sequence of binary separations and by distributing mass-exchange surfaces between separation stages optimally. For a heat-driven two-stage separation system, it is shown that the rate of flow of the input mixture cannot be higher than some bound. This bound (the maximal possible rate of heat-driven separation) and the separation sequence when it is achieved are derived.


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