Characteristics of a rotating packed bed

Hwai Shen Liu*, Chia Chang Lin, Sheng Chi Wu, Hsien Wen Hsu

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

171 Scopus citations

Abstract

The mass transfer (stripping of ethanol) and pressure drop (water-air) of a rotating packed bed were investigated under 13-273 equiv of gravitational force with two packings. The results indicated that the mass-transfer coefficient (KGa) was enhanced due to the centrifugal force as compared to a conventional packed bed. An empirical correlation was also proposed, suggesting that the KGa value depends on the GrG number to the power of 0.25. As to pressure drop, the gas rate seems to be a more important factor than the liquid rate because of less liquid holdup under centrifugal force. A semiempirical equation was also developed to correlate the pressure drop data with good agreement.

Original languageEnglish
Pages (from-to)3590-3596
Number of pages7
JournalIndustrial and Engineering Chemistry Research
Volume35
Issue number10
DOIs
StatePublished - 10 1996
Externally publishedYes

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