Process for demetallizing and desulfurizing heavy crude oil
US4885080A · kind A · utility
260Cited by
16References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 1988 |
| Grant date | Dec 5, 1989 |
| Priority date | — |
| Expiry date | May 25, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G65/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A heavy crude oil is fractionated into at least three liquid fractions which include a distillate fraction boiling in the 400.degree. F.-650.degree. F. range and a 650.degree. F.+ boiling range residuum. The distillate cut is hydrodesulfurized and the residuum is hydrodemetallized. The cuts thus hydrotreated, and at least a part of the third liquid fraction, are then combined to form an upgraded synthetic crude oil of relatively low sulfur content and relatively low vanadium and nickel content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.