Integrated process for deasphalting heavy oils using a gaseous antisolvent
US4536283A · kind A · utility
14Cited by
17References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 20, 1984 |
| Grant date | Aug 20, 1985 |
| Priority date | — |
| Expiry date | Aug 20, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G21/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the recovery of hydrocarbon oils from other heavier oils such as vacuum residua and, more particularly, to an improved process for deasphalting petroleum oils containing those asphalts. In one aspect of the invention, the process treats a solvent which has contacted the heavy oil with a gaseous antisolvent to separate effectively and usually without distillation, the solvent from the extracted oil. The deasphalted oil product typically will have low metals contaminants and enhanced MCR. Utilities or energy requirements for the process may be improved over prior art processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.