Vapor compression for batch distillation: Comparison of different working fluids

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Application of a heat pump system is a possibility for decreasing the high energy demand of distillation. The use of different working fluids for a vapor compression system for batch distillation is investigated. In this study working fluids are classified as "wet" and "dry" based on their behavior during the compression. The separation of a low relative volatility mixture (n-heptane-toluene) is investigated by rigorous simulation performed with a professional flow-sheet simulator. Standard reactor-reboiler is applied and simulated in a rigorous way (including the conditions of heat transfer). The basic criteria for the selection of the possible working fluids are determined. Based on these criteria n-hexane, n-pentane, ethanol, and isopropyl alcohol are studied as working fluids. The effectiveness of different working fluids is compared. The effect of the main operational parameters on the length of the payback period is examined. The minimal payback time is determined for the different working fluids. The best results are obtained for n-hexane.

Original languageEnglish
Pages (from-to)1081-1092
Number of pages12
JournalIndustrial and Engineering Chemistry Research
Volume54
Issue number3
DOIs
Publication statusPublished - Jan 28 2015

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Distillation
Vapors
Fluids
Hexane
Reboilers
Heat pump systems
2-Propanol
Toluene
Heptane
Compaction
Alcohols
Ethanol
Simulators
Heat transfer
n-hexane

ASJC Scopus subject areas

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

Cite this

Vapor compression for batch distillation : Comparison of different working fluids. / Modla, G.; Láng, P.

In: Industrial and Engineering Chemistry Research, Vol. 54, No. 3, 28.01.2015, p. 1081-1092.

Research output: Contribution to journalArticle

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