Separation of water - Acetic acid mixtures by cyclic distillation

Cătălin Pătruț, Elena Cătălina Udrea, Costin Sorin Bîldea

Research output: Contribution to journalArticlepeer-review

Abstract

Acetic acid is a carboxylic acid, industrially produced for a large range of applications. All the processes include a water – acetic acid separation step which, due to the presence of a tangent pinch on the pure water end, is performed in practice through heterogeneous azeotropic distillation. The current paper compares the separation of the water – acetic acid mixture through conventional distillation, cyclic distillation, and azeotropic distillation with i-butyl acetate as entrainer. Cyclic distillation is a better technique compared to the conventional distillation. However, for applications in which the contamination of acetic acid with i-butyl acetate is allowed, the azeotropic distillation is economically a better candidate.

Original languageEnglish
Pages (from-to)49-66
Number of pages18
JournalUPB Scientific Bulletin, Series B: Chemistry and Materials Science
Volume80
Issue number4
Publication statusPublished - 2018

Keywords

  • Cyclic distillation
  • Distillation
  • Economic evaluation
  • Heterogeneous azeotropic distillation
  • Water-acetic acid separation

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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