Methods of demulsifying emulsions using carbon dioxide
US6566410B1 · kind B1 · utility
25Cited by
18References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2000 |
| Grant date | May 20, 2003 |
| Priority date | — |
| Expiry date | Oct 31, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/921
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of demulsifying a water-in-oil emulsion comprising an oil phase comprising asphaltenes and an aqueous phase is disclosed. The method comprises contacting a carbon dioxide containing fluid with the emulsion such that the carbon dioxide containing fluid enters the oil phase of the emulsion. The asphaltenes precipitate out of the emulsion and the emulsion destabilizes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.