Process for recovering upgraded products from coal
US3983028A · kind A · utility
33Cited by
8References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1974 |
| Grant date | Sep 28, 1976 |
| Priority date | — |
| Expiry date | Jul 1, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S208/952
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for recovering and upgrading products from solid coal by contacting the coal with a dense-water-containing fluid at a temperature in the range of from about 600.degree.F. to about 900.degree.F. in the absence of externally supplied hydrogen or other reducing gas and in the presence of a sulfur- and nitrogen-resistant catalyst. The density of water in the water-containing fluid is at least 0.10 grams per milliliter, and sufficient water is present to serve as an effective solvent for the recovered liquids and gases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.