Process for fractionating close boiling components of a multi-co

Details Process for fractionating close boiling components of a multi-co Process for fractionating close boiling components of a multi-co

1981-07-08

1982-11-23

Sever, Frank

Distillation: processes, separatory

And recovering heat by indirect heat exchange

Utilizing recovered heat for heating feed

203 26, 203 88, B01D 306

Patent

active

043604056

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 down-stream 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preferred embodiment, the compressed overhead vapor stream is passed in heat transfer relationship to a liquid stream withdrawn from the preceding fractionation column prior to introduction into the lower portion of such preceding fractionation column.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

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