Tray Efficiency versus Stripping Factor

Estimation of the tray (plate) efficiency is the basis of trayed column design. A newly introduced parameter “normalized efficiency” (η) is compared to the stripping factor (λ) in order to derive a correlation which can be useful in engineering practice. The proposed correlation is based on the nume...

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Bibliographic Details
Published inIndustrial & engineering chemistry research Vol. 50; no. 12; pp. 7445 - 7451
Main Authors JACIMOVIC, Branislav M, GENIC, Srbislav B
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 15.06.2011
Subjects
Applied sciences
Chemical engineering
Exact sciences and technology
Separations
Stripping
Plate efficiency
Plate column
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Summary:Estimation of the tray (plate) efficiency is the basis of trayed column design. A newly introduced parameter “normalized efficiency” (η) is compared to the stripping factor (λ) in order to derive a correlation which can be useful in engineering practice. The proposed correlation is based on the numerous data gathered from various literature sources describing distillation, absorption, and stripping (desorption) columns and covering sieve, tunnel, bubble-cup, uniflux, and jet trays, in the range λ = 0.0391–2196. The final form of this correlation is η c = { 1 1 + 1.5 λ 0.9 for λ ≤ 1 λ 0.3 1.5 + λ 0.3 for λ ≥ 1 with correlation ratio Θ = 0.883 and standard deviation Δav = 13.1%.
ISSN:0888-5885
1520-5045
DOI:10.1021/ie101052f