Process for the isomerization of benzene containing feed streams
US5763713A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1996 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Nov 12, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for saturating benzene in a light paraffin isomerization process can accommodate varying quantities of benzene through the incorporation of progressive steps that control temperatures in the isomerization zone while performing a majority of the saturation within an immediately upstream benzene saturation zone. The process is suited for saturating benzene to very low levels while feedstream concentrations of benzenes may vary from 2 to 25 wt % throughout a given period of operation. The process can accommodate rapid swings in benzene concentration that may occur on a daily basis. The invention is particularly suited for the use of a sulfated zirconia catalyst that allows the utilization of existing reactor vessels in an isomerization process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.