Coal liquefaction
US3947346A · kind A · utility
5Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1974 |
| Grant date | Mar 30, 1976 |
| Priority date | — |
| Expiry date | Sep 20, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/045
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A coal liquefaction product is separated into an essentially solid free stream and a solid containing stream including the coal ash. The solid containing stream is hydrotreated, in the absence of added catalyst, and valuable clean fuel components stripped from the hydrotreated stream. The combustibles content of the stripped solid containing stream is reduced by hydrotreatment, prior to stripping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.