Solvent for use in aromatic extraction process
US10793782B2 · kind B2 · utility
19Cited by
5References
8Claims
0Family size
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Key dates
| Filing date | Dec 5, 2018 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Dec 5, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Oxidized disulfide oil (ODSO) compounds, derived from by-product disulfide oil (DSO) compounds produced as by-products from the generalized mercaptan oxidation (MEROX) in the practice of the process, are effective as aromatic extraction solvents. This use of ODSO compounds as an extraction solvent converts an otherwise DSO waste oil product into a valuable commodity that has utility in improving the extraction of aromatics from hydrocarbons derived from fossil fuels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.