Process for separating a C5-C8 feed or an intermediate feed into

Details Process for separating a C5-C8 feed or an intermediate feed into Process for separating a C5-C8 feed or an intermediate feed into

1998-11-25

2000-12-05

Griffin, Walter D.

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By plural serial diverse separations

585818, 585820, 585822, 585826, 585737, 585738, 208351, 208310Z, 208310R, C07C 700, C07C 7144, C07C 712, C07C 513, C10G 2500

Patent

active

06156950&

ABSTRACT:
For producing three effluents which are respectively rich in straight chain paraffins, in mono-branched paraffins, and in di-branched and tri-branched paraffins possibly with naphthenic and/or aromatic compounds, from C5-C8 cuts or intermediate cuts (C5-C7, C6-C8, C7-C8, C6-C7, C7 or C8), comprising paraffic and possibly naphthenic, aromatic and olefinic hydrocarbons, the separation process of the invention uses at least two separation units operating either by adsorption or by permeation. It is of particular application when coupled with a hydro-isomerization process, which selectively recycles straight chain and mono-branched paraffins, necessary with paraffins containing more than 7 carbon atoms.

REFERENCES:
patent: 4717784 (1988-01-01), Stem et al.
patent: 5055633 (1991-10-01), Volles
patent: 5107259 (1992-04-01), Chen et al.

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