Naphtha desulfurization with selectively suppressed hydrogenation
US7576023B2 · kind B2 · utility
1Cited by
6References
6Claims
0Family size
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Key dates
| Filing date | Apr 11, 2005 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Aug 28, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J35/647
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Naphtha is selectively hydrodesulfurized in the presence of a sulfided, treated catalyst comprising at least a Group VIB metal catalytic component, to produce sulfur-reduced naphtha with reduced olefin loss due to saturation. The catalyst is treated with hydrogen, a selectively deactivating agent which deactivates its hydrogenation activity, and a protective agent which preserves its hydrodesulfurization activity during the treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.