Non-solvent asphaltene removal from crude oil using solid heteropoly compounds
US10308880B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2017 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Aug 21, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/208
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for removing asphaltenes from an oil feed comprising the steps of introducing the oil feed to a reactor, where the oil feed comprises a carbonaceous material and asphaltenes, introducing a heteropolyacid feed to the reactor, where the heteropolyacid feed comprises a heteropolyacid, operating the reactor at a reaction temperature and a reaction pressure for a reaction time such that the heteropolyacid is operable to catalyze an acid catalyzed polymerization reaction of the asphaltenes to produce polymerized asphaltenes, where a mixed product comprises the polymerized asphaltenes and a de-asphalted oil, introducing the mixed product to a separator at the end of the reaction time, and separating the mixed product in the separator to produce a de-asphalted oil and a waste stream, where the de-asphalted oil has a lower concentration of sulfur, a lower concentration of nitrogen, and a lower concentration of metals as compared to the oil feed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.