| 摘要 |
In a process for gasification of solid carbonaceous material such as coal powdered, coal is top-blown by a carrier gas onto a molten iron bath stored in a furnace through a non-submerged lance toward a hot spot formed by means of jet of oxygen and steam top-blown through a non-submerged lance and flux is optionally added into the furnace by the lump or blown toward the hot spot, thereby coal being gasified. The ratio L/L0 of the depression depth L of the molten iron bath to the molten iron depth L0 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 forming of adhered mass on the upper part of the furnace or hood. A mixing gas may be blown through bottom nozzles to stir the molten iron bath. <IMAGE> |
