Method for reducing oil fouling in heat transfer equipment
US8062504B2 · kind B2 · utility
3Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2008 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Apr 23, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G75/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of reducing asphaltene and particulate induced fouling during the thermal processing of petroleum oils utilizes resin extracts from HSDP crude oils to disperse and solubilize asphaltenes and disperse inorganic particulate contaminants such as salts and iron oxide. The extracts are essentially maltene fractions which may be separated from the HSDP crude by a process of extraction from a precipitated asphalt fraction using light paraffinic solvents such as n-heptane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.