Coal liquefaction process
US4253937A · kind A · utility
2Cited by
11References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 21, 1978 |
| Grant date | Mar 3, 1981 |
| Priority date | — |
| Expiry date | Aug 21, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Particulate coal is contacted with a hydrogen donor solvent, preferably a vapor phase hydrogen donor solvent, to swell the coal particles and, thereafter, the swollen coal particles are subjected to coal liquefaction conditions in the absence of liquid phase solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.