Electrochemical oxidation of sulfur compounds in naphtha using ionic liquids
US6274026A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2000 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Mar 31, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B3/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The instant invention is directed to an electrochemical process for removing sulfur from a stream comprising hydrocarbon and polymerizable sulfur compounds comprising: (a) combining a hydrocarbon feed containing polymerizable sulfur compounds with a ionic liquid; (b) electrochemically oxidizing said combination of step (a) in an electrochemical reactor, under conditions capable of producing sulfur oligomers from said polymerizable sulfur compounds to obtain a first fraction comprising sulfur oligomers, ionic liquid, and entrained hydrocarbon, and a second fraction comprising desulfurized hydrocarbon feed; (c) recovering said first fraction and said second fraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.