Gasification system

Abstract

A coal gasification system includes a coal gasifier that allows, for example, coal, as carbonaceous solid fuel, to react in the furnace with a gasifying agent (for example, air or oxygen) to generate combustible gas from the coal, a pulverized coal supply device (solid fuel supply means) that pulverizes the coal into a fine powder form and charges the coal into the coal gasifier, and an ash supply device (ash supply means) that charges ash of the coal (pulverized coal) to an inside of the coal gasifier. The ash supply device is configured to recharge slag that is generated when the pulverized coal is gasified in the coal gasifier and is discharged, into the coal gasifier as the ash. The slag is melted in a combustor to be molten slag, and adheres to an inner wall of the combustor to function as a refractory material.

Dependencies are inferred from the claim text.