Method for hydrogenating a solvent-refined coal
US4737266A · kind A · utility
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8References
12Claims
0Family size
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Key dates
| Filing date | Dec 22, 1983 |
| Grant date | Apr 12, 1988 |
| Priority date | — |
| Expiry date | Dec 22, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/002
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for hydrogenating a solvent-refined coal by heating it under hydrogen pressure in a fixed bed, characterized in that a solvent-refined coal fraction containing no substantial amount of preasphaltene is used as the solvent-refined coal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.