Paraffin isomerization process comprising fractionation having at least two draw-off levels associated with at least two isomerization zones
US5994607A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1998 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Aug 4, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G59/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention concerns a process for isomerising a feed containing essentially hydrocarbons, preferably paraffins containing principally 4 to 8, preferably princiapply to 6 and more principally 5 and/or 6 carbon atoms per molecule, comprising a fractionation zone and at least two isomersation reaction zones, said process comprising carrying out the following steps: PA1 (1) sending the feed to a fractionation zone; PA1 (2) drawing off at least a portion of the liquid circulating in said zone, via at least two draw-off levels; and PA1 (3) sending the major portion of the liquid drawn off in step (2) to at least two isomerisation zones, each isomerisation zone being associated with a draw-off level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.