Apparatus for cleaning fossil fuel, such as coal and crude oil
US4797137A · kind A · utility
2Cited by
14References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 6, 1987 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Jul 6, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L9/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Contaminants, such as sulphur, sulphur compounds and other pollutants are removed from fossil fuels. The fossil fuel in a liquid medium, such as crude oil or a coal slurry, is exposed to metallic copper to react the sulphur with copper ions and settle out the resulting copper sulphide. Additional additives are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.