Process for the production of hydrocarbons from coal
US4075079A · kind A · utility
44Cited by
1References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1976 |
| Grant date | Feb 21, 1978 |
| Priority date | — |
| Expiry date | Jun 9, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10B55/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Coal is liquefied by treatment with a hydrogen-donor solvent and gaseous hydrogen, a heavy bottoms product boiling primarily in excess of about 1000.degree. F. is recovered, and this bottoms product is then pyrolyzed with fresh coal to produce surprisingly high yields of liquid product. The coke formed during the pyrolysis step may be gasified to generate hydrogen for use in the liquefaction operation and additional gas which can be employed as a fuel or upgraded for other uses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.