Coal liquefaction process
US4437974A · kind A · utility
3Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1982 |
| Grant date | Mar 20, 1984 |
| Priority date | — |
| Expiry date | Jun 17, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/006
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A coal liquefaction process and apparatus therefor are disclosed. According to this invention, a finely divided coal and a solvent are contacted with molecular hydrogen in the presence of a catalyst to provide a slurry, the slurry is separated into a gaseous component, a liquid component and a solid residue, the solid residue which is the liquefaction residue is then supplied to a molten metal bath together with oxygen gas to generate a gas entraining fine powdery solids, and the thus recovered fine powdery solids are returned to the liquefaction process as a catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.