Mitigation of refinery process unit fouling using high-solvency-dispersive-power (HSDP) resid fractions
US7901564B2 · kind B2 · utility
2Cited by
8References
17Claims
0Family size
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Key dates
| Filing date | Aug 15, 2008 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Aug 8, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/4075
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Atmospheric and/or vacuum resid fractions of a high solvency dispersive power (HSDP) crude oil are added to a blend of crude oil to prevent fouling of crude oil refinery equipment and to perform on-line cleaning of fouled refinery equipment. The HSDP resid fractions dissolve asphaltene precipitates and maintain suspension of inorganic particulates before coking affects heat exchange surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.