Batch heteroazeotropic distillation with variable decanter hold-up

Feasibility studies

Laszlo Hegely, Vincent Gerbaud, P. Láng

Research output: Contribution to journalArticle

Abstract

A general model of batch heteroazeotropic distillation is proposed. Both liquid phases present in the decanter can be refluxed or withdrawn as distillate, their hold-up can be increased, decreased or kept constant, as well. In this feasibility study maximal separation is assumed, that is, that the composition of the condensate always equals to that of the heteroazeotrope. The model predicts the direction of the still path, and can be used to analyse the feasibility of batch heteroazeotropic processes. The still path directions are determined for all the 16 possible operation policies. It is possible to steer the still path in a desired direction by changing the operational parameters, which allows the recovery of a pure component in the still.

Original languageEnglish
Pages (from-to)527-531
Number of pages5
JournalComputer Aided Chemical Engineering
Volume30
DOIs
Publication statusPublished - 2012

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Distillation
Recovery
Liquids
Chemical analysis
Direction compound

Keywords

  • Batch distillation
  • Heteroazeotropic distillation
  • Operational policies

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Computer Science Applications

Cite this

Batch heteroazeotropic distillation with variable decanter hold-up : Feasibility studies. / Hegely, Laszlo; Gerbaud, Vincent; Láng, P.

In: Computer Aided Chemical Engineering, Vol. 30, 2012, p. 527-531.

Research output: Contribution to journalArticle

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