Conversion of heavy petroleum oils to coke with a molten alkali metal hydroxide
US5954949A · kind A · utility
19Cited by
16References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1998 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Mar 25, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G55/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method is described for making a high purity coke fuel or anode grade coke from a heavy petroleum residuum by contacting a molten anhydrous alkali metal hydroxide with the heavy petroleum residuum at a temperature and for a time sufficient to extract substantially all sulfur and heavy metals contained in the petroleum residuum to the alkali metal hydroxide and recovering the coke product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.