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    • 4. 发明授权
    • Method and apparatus for separating solids from gas in a high pressure
solids-gas stream utilizing a packed bed of the solids
    • 使用固体填充床在高压固体 - 气体流中从气体中分离固体的方法和装置
    • US5567090A
    • 1996-10-22
    • US51969
    • 1993-04-22
    • Arun K. BasakKarukkampalayam M. Sellakumar
    • Arun K. BasakKarukkampalayam M. Sellakumar
    • B01D45/06B01D46/10B01D46/30B01J8/00F23C10/16F23C10/24B65G53/60
    • F23C10/24B01D46/30B01J8/003B01J8/006B01J8/008F23C10/16
    • Separation of a high temperature (e.g., 300.degree.-1200.degree. C.) and high pressure (e.g., 2-20 bar) solids-gas stream from a pressurized fluidized bed reactor into solids and gas while reducing the pressure of both the gas and solids takes place in a vertical de-entrainment vessel having a packed bed of solids within it. The possibility of fluidization of the solids is minimized by causing the velocity of the gas component of the solids-gas stream to be reduced during, or just prior to, introduction of the gas into the packed bed of solids, e.g., by providing an expanding conical end to the inlet for the solids-gas stream into the vessel. A gas permeable solids impermeable element may also or alternatively be connected to the inlet and extend toward (optionally all the way to) the side wall of the vessel, to substantially prevent fluidization. The fluidization-preventing element may be a perforated plate, ceramic filter, or wire mesh screen, and may have gradually increasing gas permeability from the inlet to the vessel side wall. A plurality of inlets flow into the vessel, and at least one separated gas and solids outlets leads from the vessel to a low (e.g., atmospheric) pressure area.
    • 将来自加压流化床反应器的高温(例如300℃-1200℃)和高压(例如2-20巴)固体 - 气流分离成固体和气体,同时降低气体和 固体发生在其中具有固体填充床的垂直去除容器中。 通过使固体气体流的气体成分的速度在气体进入固体的填充床期间或之前或之前被降低,使得固体的流化的可能性被最小化,例如通过提供膨胀 锥形端到入口的固体 - 气流进入容器。 气体可渗透的固体不可渗透元件也可以或者替代地连接到入口并且朝着(任选地一直到)容器的侧壁延伸,以基本上防止流化。 流化防止元件可以是多孔板,陶瓷过滤器或丝网筛,并且可以具有从入口到容器侧壁的气体渗透性逐渐增加。 多个入口流入容器中,并且至少一个分离的气体和固体出口从容器引导到低(例如大气压)的压力区域。