Process and apparatus for fractionating close boiling components

Details Process and apparatus for fractionating close boiling components Process and apparatus for fractionating close boiling components

1980-05-12

1982-02-16

Sever, Frank

Distillation: apparatus

Apparatus

Systems

196134, 203 24, 203 26, B01D 314

Patent

active

043158021

ABSTRACT:
There is disclosed a process and apparatus for the fractionation of close boiling components of a multi-component system and comprised of at least two fractionation columns having a plurality of equilibrium stages wherein the vapor from a downstream fractionation column is compressed and passed into a lower portion of a preceding fractionation column. In a particularly preferred embodiment, the compressed overhead vapor stream is passed in heat transfer relationship to a liquid stream withdrawn from the preceding fractionation column prior to introduction into the lower portion of such preceding fractionation column.

REFERENCES:
patent: 2530602 (1950-11-01), Dennis
patent: 3535887 (1970-10-01), Hoffman

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