Liquefaction of coal
US4523986A · kind A · utility
10Cited by
9References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1983 |
| Grant date | Jun 18, 1985 |
| Priority date | — |
| Expiry date | Dec 16, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/002
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Coal or similar solid carbonaceous fuels are liquefied by catalytic hydrogenation of coal-liquid hydrocarbon oil slurries with a hydrogen-rich gas. Both the liquid hydrocarbon slurrying oil and the hydrogen-rich gas are derived in the process. Noxious hydrogen-containing purge and vent gases and optionally high ash-containing bottoms from a vacuum fractionator are used as feed to a partial oxidation gas generator to produce synthesis gas from which the hydrogen-rich gas is derived.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.