Aromatic sulfonic acid demulsifier for crude oils
US6599949B2 · kind B2 · utility
7Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2002 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Oct 1, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G33/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention is directed towards a chemical demulsifier formulation comprising an alkyl aromatic sulfonic acid additive with at least 16 carbon atom alkyl group and at least two 6 carbon-ring aromatic group and a co-additive selected from the group consisting of dipropylene monobutyl ether, aromatic naphtha, isoparaffinic solvent, cycloparaffinic solvent, aromatic solvent, diethylene glycol monobutyl ether, benzyl alcohol and mixtures thereof and a process for demulsification and desalting crude oil using the demulsifier formulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.