Removal of sulfur from petroleum coke with lime
US4981667A · kind A · utility
8Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1990 |
| Grant date | Jan 1, 1991 |
| Priority date | — |
| Expiry date | Apr 13, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L10/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The sulfur in petroleum pitches and cokes can be converted to calcium sulfate instead of sulfur dioxide during combustion when calcium oxide or calcium carbonate is added to the molten pitch before burning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.