Process for the isomerization of C.sub.5 /C.sub.6 normal paraffins with recycling of normal paraffins
US5233120A · kind A · utility
7Cited by
6References
17Claims
0Family size
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Key dates
| Filing date | Jul 17, 1992 |
| Grant date | Aug 3, 1993 |
| Priority date | — |
| Expiry date | Jul 17, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The isomerization of C.sub.5 /C.sub.6 n-paraffins to isoparaffins, comprises: PA0 a stage (1) of deisopentanizing a charge constituted by a light naphtha, PA0 a stage (2) of isomerizing the deisopentanization residue, an adsorption stage (3) carried out by passing the isomerization effluent onto an adsorbent retaining the n-paraffins and alternating with the adsorption stage (3), a desorption stage (4) carried out by lowering the pressure and stripping by means of an isopentane-rich gas flow from the deisopentanization stage. The isomerate freed from the n-paraffins in stage (3) is a product having a high octane number.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.