Viscosity reduction of crude oils and residuums
US6187172A · kind A · utility
11Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 24, 1999 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | May 24, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10C1/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Adverse effects of asphaltenes in liquid hydrocarbons are reduced by incorporating into the liquid hydrocarbon sufficient concentration, e.g., about 0.5 to 5 weight % of a dispersant to disassemble or break up agglomerates of the asphaltenes. The dispersant has a polarity of about 0.3 to about 3.2 Debye Units and is preferably selected from the group of toluene, o-xylene, m-xylene, tetralin, furan, phenol, ethyl benzoate, butraldehyde, acetophenone and cyclohexanone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.