Compounds containing amide and carboxyl groups as asphaltene dispersants in crude oil
US7122112B2 · kind B2 · utility
9Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 2003 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Oct 27, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G9/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition containing: (a) 0.001% to 20% of at least one compound represented by formula (II),wherein R5 is C1–C70 difunctional alkyl or C6–C14 difunctional aryl, and R3and R4 independently are hydrogen, alkyl, heterocyclic, aryl or aralkyl groups; and (b) crude oil. In addition to dispersing asphaltenes, the composition of the present invention typically also increases demulsibility, reduces viscosity, reduces sediment formation, reduces surface fouling and reduces corrosion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.