Process for isomerization of C5—C7 hydrocarbons in light naphtha range
US12398330B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2022 |
| Grant date | Aug 26, 2025 |
| Priority date | — |
| Expiry date | Jan 15, 2044 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G45/58
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is related to the isomerization process in which a light naphtha stream comprising of paraffinic (mono and single branched), naphthenic and aromatic hydrocarbons in the range of C5-C7 is contacted with the solid catalyst in multiple reaction zones and in presence of hydrogen to produce high octane gasoline predominantly comprising of paraffins (single and di-branched) and naphthenes. The process scheme comprises of more than one isomerization reaction section operating at different temperatures and other operating conditions. The catalyst employed in these reaction sections is a high coordination sulfated mixed metal oxide catalyst which contains at least one noble metal and sulfated zirconia in addition to the other components. The process of the present invention also comprises more than one fractionation section and recycling of a particular stream to the reaction zone for improving the isomerization of light naphtha.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.