Process of treating the gasification residue formed by the gasification
of solid fuels in a fluidized bed
    11.
    发明授权
    Process of treating the gasification residue formed by the gasification of solid fuels in a fluidized bed 失效
    在流化床中处理由固体燃料气化形成的气化残渣的方法

    公开(公告)号:US5635147A

    公开(公告)日:1997-06-03

    申请号:US409254

    申请日:1995-03-23

    IPC分类号: C10J3/54 C01B17/16 C10B57/00

    摘要: In addition to ash and coke, the gasification residue contains alkaline earth metal sulfide and alkaline earth metal oxide because desulfuring agents have been supplied to the gasifier. At temperatures from 5.degree. to 80.degree. C. the gasification residue is mixed with an acid-containing aqueous solution so that a gas which is rich in H.sub.2 S is produced. Ash, coke, and alkaline earth metal salt are supplied to a flotation zone, in which coke is separated. A solid residue which contains ash and alkaline earth metal salt is withdrawn from the flotation zone. Carbonic acid or dilute sulfuric acid is preferably used as an acid.

    摘要翻译: 除了灰分和焦炭之外,气化残渣含有碱土金属硫化物和碱土金属氧化物,因为已经向气化器供应了脱硫剂。 在5〜80℃的温度下,将气化残渣与含酸水溶液混合,制成富含H 2 S的气体。 灰分,焦炭和碱土金属盐被供应到浮选区域,其中焦炭被分离。 从浮选区抽出含有灰分和碱土金属盐的固体残渣。 优选使用碳酸或稀硫酸作为酸。