Theoretical Foundations of Chemical Engineering

, Volume 44, Issue 6, pp 869–876

Development of mixture composition maldistribution in a distillation column with structured packing

  • A. N. Pavlenko
  • V. E. Zhukov
  • N. I. Pecherkin
  • V. Yu. Chekhovich
  • S. Sunder
  • P. Houghton
Article

Abstract

The distribution of the composition of a mixture of Freons R-114 and R-21 over the cross section of a distillation column filled with structured packing is experimentally studied. Results on the efficiency of Freon mixture separation, the pressure drop in the packing, and the distribution of the local concentration of the low-boiling component throughout the cross section and height of the structured packing are presented. The vapor phase load factor was varied over a wide range up to hydraulic flooding. According to the experimental results, the large-scale maldistribution of the mixture composition occurs inside the packing over the column cross section, even though the overall separation performance of the column is excellent. Maldistribution is observed throughout the total height of the column. The location of the large zones of maldistribution significantly depends on the liquid and vapor flow rates.

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Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • A. N. Pavlenko
    • 1
  • V. E. Zhukov
    • 1
  • N. I. Pecherkin
    • 1
  • V. Yu. Chekhovich
    • 1
  • S. Sunder
    • 2
  • P. Houghton
    • 2
  1. 1.Kutateladze Institute of Thermophysics, Siberian BranchRussian Academy of SciencesNovosibirskRussia
  2. 2.Air Products, Inc.AllentownUSA

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