Hi everybody,
I'm studying to design a distillation column but with multifeed (3 feeds: 1 feed on top such as external reflux flow) and no condenser. In my references, only design a column with one feed and a condenser. Therefore, I don't know how to determine the minimum number of stages, the minimum reflux ratio and feed-point location of 3 feeds.
Pls give me some calculation method or references to solve this problem.
Thank a lot...



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