Gasification process of solid carbonaceous material
US4389246A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1981 |
| Grant date | Jun 21, 1983 |
| Priority date | — |
| Expiry date | Aug 6, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S75/958
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In a process for the gasification of solid carbonaceous material such as coal, powdered coal is top-blown onto a molten iron bath stored in a furnace through a non-submerged lance toward a hot spot formed by means of a jet of oxygen and steam top-blown through a non-submerged lance, coal being blown by means of a carrier gas, and flux is optionally added into the furnace by the lump or blown toward the hot spot, thereby the coal being gasified. The ratio L/L.sub.o of the depression depth L of the molten iron bath to the molten iron bath depth L.sub.o is maintained from 0.05 to 0.15, and the blowing velocity of the solid carbonaceous material is maintained from 50 to 300 m/sec so as to suppress the forming of an adhered mass in the furnace. A stirring gas is blown through a bottom nozzle to stir the molten iron bath.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.