Desulfurization process
US7144499B2 · kind B2 · utility
28Cited by
14References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2003 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Jan 31, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G53/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention is a method of purifying fuel streams containing organosulfur impurities. The fuel stream is oxidized with an organic hydroperoxide in the presence of an oxidation catalyst to form a sulfone product. The alcohol product of the organic hydroperoxide is then removed from the oxidized fuel stream, followed by extraction of the sulfone product by solid-liquid extraction using solid adsorbents. The alcohol removal step is found to improve the adsorption capacity of the solid adsorbents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.