Minimum reflux conditions, part I: Theory

K. Nandakumar*, R. P. Andres

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


This paper presents a new formulation of the infinite plate or minimum reflux limit of a multicomponent distillation column. Based on this model, two new calculation methods are developed. The first is a short‐cut method which extends Underwood's classic minimum reflux treatment to variable molar overflow situations. The second is a rigorous method which is similar to a multicomponent flash calculation and represents a significant computational advance over other rigorous methods.

Original languageEnglish
Pages (from-to)450-460
Number of pages11
JournalAICHE Journal
Issue number3
StatePublished - May 1981
Externally publishedYes


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