Methods of designing green demulsifiers
US11981871B1 · kind B1 · utility
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2References
12Claims
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Assignee
Inventors
Key dates
| Filing date | Mar 13, 2023 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Mar 13, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/1033
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Green demulsifiers useful for demulsifying emulsions of water and crude oil are made by reacting together an alcohol, a multifunctional acid and/or anhydride, and a fatty acid, and optionally a polyol that is polyethylene glycol and/or polypropylene glycol. The green demulsifier has ester bonds between the reactant moieties. These ester bonds can hydrolyze which results in relatively high biodegradation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.