Liquefaction of coal with aqueous carbon monoxide pretreatment
US5336395A · kind A · utility
16Cited by
23References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1993 |
| Grant date | Aug 9, 1994 |
| Priority date | — |
| Expiry date | Mar 29, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/086
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention is directed to a staged process for producing liquids from coal or similar carbonaceous feeds combining a pretreatment stage and a liquefaction stage. In the process, the feed is reacted with carbon monoxide and water at an elevated temperature and pressure. The so pretreated coal is sent to a liquefaction reactor, wherein the coal is reacted at a somewhat higher temperature in the presence of hydrogen and catalyst to produce valuable liquid fuels or feedstocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.