| 摘要 |
PROBLEM TO BE SOLVED: To provide a new cooling and dust removing method which can attain the cooling and dust removal of a high temperature synthesis gas, obtained by gasification of combustible wastes through partial oxidation, more effectively than the cooling and dust removal by spraying cooling water from an auxiliary spray and in which there exist no dipping portions into the cooling medium (quenching bath) in the stream of the gas, and to provide its apparatus. SOLUTION: In cooling the synthesis gas and removing the dust in a tube-structured cooling chamber 5, the cooling medium d is supplied from the circumference of the top of the cooling chamber to form a wetted wall on the inner wall surface of the cooling chamber while introducing the synthesis gas from the upside of the cooling chamber. The cooling medium c is supplied into the inside of the cooling chamber from the axial center section of the upper part region of the cooling chamber also to form droplets of the cooling medium, and the synthesis gas is put into contact with the wetted wall and the droplets for the cooling and dust removal to be carried out. Its apparatus is also provided. COPYRIGHT: (C)2005,JPO&NCIPI
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