Point and Stage Efficiencies in Distillation

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The definition of Murphree point efficiency in distillation is critically examined. Characteristics of Standards stage efficiency definition are utilized to define a new point efficiency on a plate in a column. This new definition was shown to be consistent and symmetrical. for crossflow on a plate, the proposed point efficiency was found to be equal to Standart stage efficiency subject to only the assumption of a uniform value of the proposed point efficiency over the whole plate.

Original languageEnglish (US)
Pages (from-to)303-315
Number of pages13
JournalSeparation Science
Issue number4
StatePublished - Jan 1976
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Chemical Engineering
  • Process Chemistry and Technology
  • General Chemistry
  • Filtration and Separation
  • General Engineering


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