Demetallization of heavy oils
US4421638A · kind A · utility
14Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1983 |
| Grant date | Dec 20, 1983 |
| Priority date | — |
| Expiry date | Mar 31, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G29/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An improved process for removing metals from heavy oils and other hydrocarbon feed streams is disclosed. The process includes adding phosphorus sulfide to the hydrocarbon feed stream under suitable demetallizing conditions. It is believed that phosphorus sulfide reacts with the metals contained in the hydrocarbon containing feed stream to form oil insoluble compounds that can be removed from the hydrocarbon containing feed stream by any conventional method, such as filtration, centrifugation, or decantation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.