Interpreting design of an ideal heat-integrated distillation column through exergy analysis

Kejin Huang, Keigo Matsuda, Koichi Iwakabe, Takeichiro Takamatsu, Masaru Nakaiwa*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Exergy analysis of an ideal heat-integrated distillation column is conducted in this paper. It is found that the process is most favourable to the separation of binary close-boiling mixtures. Pressure elevation from stripping section to rectifying section appears to be a critical design variable that can affect the thermodynamic efficiency of the process. Feed composition presents almost no effect upon internal heat integration between the rectifying section and the stripping section. Although an implicit limitation has been imposed on the process throughput, it can be obviated through a careful trade-off between capital investment and operating cost during process development. Comparison against a conventional distillation column is also conducted, which shows the great potential of internal beat integration between the rectifying section and the stripping section.

Original languageEnglish
Pages (from-to)963-970
Number of pages8
JournalJOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Volume39
Issue number9
DOIs
Publication statusPublished - 2006 Sep 20
Externally publishedYes

Keywords

  • Distillation
  • Exergy
  • Heat integration
  • Parametric analysis
  • Process design

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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