A method for separating the C5-C8 feed or intermediate feed into three effluents, each of which is enriched in straight chain paraffins, single branch chain paraffins and multi-branched chain paraffins

摘要

The separation process of the present invention is a process for the separation of paraffinic hydrocarbons, preferably naphthenes, aromatic hydrocarbons and / or olefin hydrocarbons, C₅-C₈Classified or intermediate grade material (C₅-C₇, C₆-C₈, C₇-C₈, C₆-C₇, C₇Or C₈), That is to say, effluents in which the respective straight chain paraffins are concentrated, the effluents in which the single branched chain paraffins are concentrated and the double branched chain paraffins, the triple branched chain paraffins and possibly the naphthenic compounds and / Thereby producing a concentrated effluent. The separation method uses two or more separation units operated by adsorption or permeation. The process of the present invention is applied when coupled with a hydrogen isomerization process, which selectively recycles linear and branched paraffins essential for paraffins containing at least 7 carbon atoms.