Process for recovering upgraded products from coal
US3983027A · kind A · utility
18Cited by
2References
17Claims
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 an externally supplied catalyst and hydrogen or other reducing gas. 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.