Dehydration of a Dilute Acetic Acid-Water Mixture via Batch Heteroazeotropic Distillation

Hao Gao, Fei Zhao, Lingyan Zhu, Fan Yang, Yaqian Wang, Dongbing Li

Research output: Journal PublicationArticlepeer-review

3 Citations (Scopus)

Abstract

Dehydration via batch heteroazeotropic distillation emerges as a promising technology for the recovery of acetic acid (HAc) from dilute aqueous solutions. In this preliminary work, this process was studied with the aid of Aspen Batch Modeler®, using an acetic acid aqueous solution as the model feed instead of wood vinegar from biorefineries and n-butyl acetate as the azeotropic entrainer. The non-random two liquids (NRTL)-virial Hayden-O'Connell model (HOC) model was chosen to calculate the thermodynamic properties. The response surface methodology with Box-Behnken design was successfully applied to obtain optimum process conditions, providing a dehydrated HAc product from the pot with high purity and recovery.

Original languageEnglish
Pages (from-to)477-487
Number of pages11
JournalChemical Engineering and Technology
Volume44
Issue number3
DOIs
Publication statusPublished - Mar 2021
Externally publishedYes

Keywords

  • Batch heteroazeotropic distillation
  • Box-Behnken design
  • Dilute acetic acid
  • n-Butyl acetate
  • Process simulations

ASJC Scopus subject areas

  • Chemistry (all)
  • Chemical Engineering (all)
  • Industrial and Manufacturing Engineering

Fingerprint

Dive into the research topics of 'Dehydration of a Dilute Acetic Acid-Water Mixture via Batch Heteroazeotropic Distillation'. Together they form a unique fingerprint.

Cite this