Hydrogen-donor coal liquefaction process
US4210518A · kind A · utility
11Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1978 |
| Grant date | Jul 1, 1980 |
| Priority date | — |
| Expiry date | Oct 12, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/083
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Improved liquid yields are obtained during the hydrogen-donor solvent liquefaction of coal and similar carbonaceous solids by maintaining a higher concentration of material having hydrogenation catalytic activity in the downstream section of the liquefaction reactor system than in the upstream section of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.