Extraction of heavy polynuclear aromatics from heavy oil
US10934493B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2019 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Nov 25, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/1096
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is provided for removing a heavy polynuclear aromatic (HPNA) compound from a hydrocarbon oil. The process includes contacting the hydrocarbon oil containing the HPNA compound with a lean hydrocarbon-immiscible liquid stream to produce a mixture comprising the hydrocarbon oil and a rich hydrocarbon-immiscible liquid containing the HPNA compound; and separating the mixture to produce a hydrocarbon oil effluent having a reduced level of the HPNA compound and a hydrocarbon-immiscible liquid effluent containing the HPNA compound. The hydrocarbon-immiscible liquid can be a halometallate ionic liquid, a liquid coordination complex, or a combination thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.