Process for desulfurization of petroleum feeds utilizing sodium metal
US6210564A · kind A · utility
76Cited by
11References
9Claims
0Family size
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Key dates
| Filing date | May 28, 1997 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | May 28, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G29/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Sulfur-containing petroleum feeds are desulfurized by contacting the feeds with staged addition of sodium metal at temperatures of at least about 250.degree. C. in the presence of excess hydrogen to sodium metal. The formation of Na.sub.2 S is substantially suppressed and the formation of NaSH is promoted in the desulfurization process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.