Design and Control of a Two-Column Azeotropic Distillation System

Samir I. Abu-Eishah, William L. Luyben

Research output: Contribution to journalArticlepeer-review

77 Citations (Scopus)


The steady-state design of a two-column azeotropic distillation system operating at two different pressures was studied with the objective of reducing energy consumption. The minimum-boiling, homogeneous binary azeotropic system tetrahydrofuran-water was used as a specific example. Energy consumption was reduced by a factor of 2 from conventional designs by using heat integration and feed preheat and by optimizing column pressures and overhead purities. The dynamics and control of the two-column, heat-integrated system was also explored. A control system was developed that effectively handled a variety of disturbances without any severe interactions between columns.

Original languageEnglish
Pages (from-to)132-140
Number of pages9
JournalIndustrial and Engineering Chemistry Process Design and Development
Issue number1
Publication statusPublished - Feb 1 1985
Externally publishedYes

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • General Engineering
  • Industrial and Manufacturing Engineering


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