Process for chromatographic separation of a C5-C8 feed or an intermediate feed into three effluents, respectively rich in straight chain, mono-branched and multi-branched paraffins
US6353144B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1999 |
| Grant date | Mar 5, 2002 |
| Priority date | — |
| Expiry date | Feb 4, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G25/03
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
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 paraffinic and possibly naphthenic and/or aromatic hydrocarbons, and in some cases olefinic hydrocarbons, a chromatographic separation process uses a separation zone operating by adsorption. The process of the invention is of particular application when coupled with a hydro-isomerization process, which selectively recycles straight chain and mono-branched paraffins, necessary for paraffins containing at least 7 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.