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11. 发明授权

US4696678A Method and equipment for gasification of coal 失效
标题翻译：煤气化方法与设备
公开(公告)号：US4696678A
公开(公告)日：1987-09-29
申请号：US663813
申请日：1984-10-22
申请人： Shuntaro Koyama , Hiroshi Miyadera , Tomohiko Miyamoto
发明人： Shuntaro Koyama , Hiroshi Miyadera , Tomohiko Miyamoto
IPC分类号： C10J3/54
CPC分类号： C10J3/54 , C10J3/463 , C10J3/721 , C10J2300/1823
摘要： A method for the gasification of coal in a fluidized bed gasifier to improve gasification efficiency comprising the steps of introducing coal into the thermal cracking zone of a fluidized bed gasifier, thermally cracking and partially combusting the coal in said gasifier, recovering a fluid product gas containing fine particles therein from the fluidized bed gasifier, separating the fine particles as char from the first product gas, gasifying said recovered fine char particles at a temperature higher than its melting point in a high temperature gasifier to produce ash and a second product gas having H.sub.2 and CO as its main components, recovering the ash as a slag and feeding the second product gas containing H.sub.2 and CO to the coal feeding position of the fluidized bed gasifier in the thermal cracking zone.
摘要翻译：一种用于在流化床气化器中气化煤以提高气化效率的方法，包括以下步骤：将煤引入流化床气化器的热裂化区，在所述气化器中热裂解和部分燃烧煤，回收含有来自流化床气化器的细颗粒，将细颗粒与第一产物气体分离，在高温气化器中以高于其熔点的温度气化所述回收的细焦炭颗粒以产生灰分和具有H2的第二产物气体以CO为主要成分，回收灰渣作为炉渣，并将含H2和CO的第二产物气体送入热裂解区的流化床气化炉的送煤位置。

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