Optimization of Batch Heteroazeotropic Distillation Operational Strategies with Entrainer Recycle

Laszlo Hegely, P. Láng

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Citations (Scopus)

Abstract

The batch heteroazeotropic distillation (BHAD) separation of a minimum boiling azeotropic mixture (isopropyl alcohol(A) – water(B)) with toluene as entrainer(E) is simulated and optimized with GA. The production cycle consists of processing three consecutive batches. Both BHAD operational modes (sequential (Mode I) and simultaneous (Mode II) distillation + decantation) are studied. The E-rich phase and (eventually) the off-cut can be recycled to the next batch to reduce the loss of both isopropyl alcohol and the entrainer. The optimization variables are the amount of E added to the charge and the reflux ratios of the steps. The effect of the recycling is discussed and the optimization results are compared with those of the non-optimized processes.

Original languageEnglish
Title of host publicationComputer Aided Chemical Engineering
PublisherElsevier B.V.
Pages1505-1511
Number of pages7
ISBN (Print)9780444642356
DOIs
Publication statusPublished - Jan 1 2018

Publication series

NameComputer Aided Chemical Engineering
Volume43
ISSN (Print)1570-7946

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Keywords

  • batch heteroazeotropic distillation
  • entrainer recycle
  • optimization

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Computer Science Applications

Cite this

Hegely, L., & Láng, P. (2018). Optimization of Batch Heteroazeotropic Distillation Operational Strategies with Entrainer Recycle. In Computer Aided Chemical Engineering (pp. 1505-1511). (Computer Aided Chemical Engineering; Vol. 43). Elsevier B.V.. https://doi.org/10.1016/B978-0-444-64235-6.50262-X