| 摘要 |
PROBLEM TO BE SOLVED: To hold a refractory material of an oven wall and the thickness of slag attachment while performing the discharge of the slag stably in a gasification oven of carbonaceous raw materials such as coal, etc. SOLUTION: This method for gasifying the carbonaceous raw material by using a gasification oven of which at least inner wall surface is formed with the refractory material and equipped with an oven wall porous part for putting-in a cooling medium from its outside, while putting-in the cooling medium, gasifying fed materials including the carbonaceous raw materials to fuel by using oxygen-containing gas is provided by increasing the putting-in amount of the cooling medium in the case that at least one content of a component among components constituting molten slag is higher in the molten slag by comparing the ash composition of the fed materials before the gasification with the ash composition of discharged molten slag. COPYRIGHT: (C)2007,JPO&INPIT
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