Process for removing sulfur from naphtha
US7799210B2 · kind B2 · utility
4Cited by
32References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 6, 2005 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Feb 7, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A three-step process of removing sulfur from naphtha feeds. The steps include a first hydrotreating step, a mercaptan removal agent and an adsorbent containing a reactive metal on an inorganic support. Step one removes at least 95 wt. % of the sulfur compounds while preserving at least 50 wt. % of the olefins. Treatment with the mercaptan removal agent lowers the sulfur content to 30 wppm total sulfur and final naphtha product contains leas than 10 wppm total sulfur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.