Integrated catalytic coal devolatilization and steam gasification process
US4292048A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1979 |
| Grant date | Sep 29, 1981 |
| Priority date | — |
| Expiry date | Dec 21, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S208/951
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Hydrocarbon liquids and a methane-containing gas are produced from carbonaceous feed solids by contacting the solids with a mixture of gases containing carbon monoxide and hydrogen in a devolatilization zone at a relatively low temperature in the presence of a carbon-alkali metal catalyst. The devolatilization zone effluent is treated to condense out hydrocarbon liquids and at least a portion of the remaining methane-rich gas is steam reformed to produce the carbon monoxide and hydrogen with which the carbonaceous feed solids are contacted in the devolatilization zone. The char produced in the devolatilization zone is reacted with steam in a gasification zone under gasification conditions in the presence of a carbon-alkali metal catalyst and the resultant raw product gas is treated to recover a methane-containing gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.