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Efficiency estimation of tray columns based on flow profiles and vapor-liquid equilibrium characteristics of binary mixtures
Vishwakarma, V.ORC; Rigos, N.; Schubert, M.ORC; Hampel, U.

A systematic approach for estimating the column efficiency based on tray flow profiles and vapor-liquid equilibrium (VLE) characteristics of binary mixtures exclusively for each tray is proposed. A novel iterative technique for approximating the slope of the VLE curve and the tray efficiency is also developed. For demonstrating the predictive capabilities of the new approach, two case studies are formulated in this work - one with a theoretical column processing selected binary mixtures at total reflux, and the other involving an industrial column whose performance data is acquired from the literature. An in-depth analysis of these studies reveals the superiority of the new approach over the most applied method. Such an approach would allow a priori calculation of the column efficiency in the tray’s design phase.

Keywords: Column efficiency; Murphree tray efficiency; flow maldistribution; vapor-liquid equilibrium; residence time distribution.
  • Reseach data in the HZDR data repository RODARE
    Publication date: 2019-09-02
    DOI: 10.14278/rodare.148
    License: CC-BY-4.0

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Publ.-Id: 29624 - Permalink