Fluidized bed reactor
    93.
    发明授权
    Fluidized bed reactor 失效
    流化床反应器

    公开(公告)号:US5395595A

    公开(公告)日:1995-03-07

    申请号:US46557

    申请日:1993-04-12

    Inventor: Matti Hamalainen

    CPC classification number: C08F2/34 B01F13/0261 B01J8/24 B01J8/382 C08F10/00

    Abstract: The present invention relates to a fluidized bed reactor in which olefins are polymerized or copolymerized in a bed formed by particles being polymerized and fluidized with the aid of a circulating gas. In the reactor, a circulating gas is fed from a gas space above the fluidized bed into the lower part of the reactor. The lower part of the reactor includes an annular space having an defined by an upwards tapering rotating conical surface and an outer wall defined by a downwards tapering rotating conical surface.

    Abstract translation: 本发明涉及一种流化床反应器,其中烯烃在由循环气体的聚合和流化的颗粒形成的床中聚合或共聚。 在反应器中,循环气体从流化床上方的气体空间进入反应器的下部。 反应器的下部包括具有由向上锥形的旋转锥形表面和由向下逐渐变细的旋转圆锥形表面限定的外壁限定的环形空间。

    Methods and apparatus for treating a mixture of particles and fluids
    94.
    发明授权
    Methods and apparatus for treating a mixture of particles and fluids 失效
    用于处理颗粒和流体混合物的方法和装置

    公开(公告)号:US5009796A

    公开(公告)日:1991-04-23

    申请号:US843055

    申请日:1986-03-24

    Abstract: A method and apparatus for exposing particles to a fluid including the steps of adding fluid and particles to a container having impeller means therein, generating a current with the impeller so as to subject the particles to centrifugal and convective forces resulting in the formation of a well-defined and localized fluidized bed of particles, and maintaining the existence of the current through the fluidized bed so that the particles are thereby exposed to the fluid. The fluidized bed is located in a region removed from the impeller when the particles are more dense than the fluid, and the fluidized bed is located in a region near the impeller when the particles are less dense than the fluid. A method of exposing a first fluid to a second fluid, the second fluid being either a gas or a liquid immiscible in the first fluid is also disclosed. The method includes the steps of adding the first and second fluids to a container having impeller means therein, generating with the impeller a current in the first fluid which subjects the second fluid to centrifugal and convective forces resulting in the formation of a well defined and localized bed of a dispersed phase of the second fluid remaining in a region near the impeller, and maintaining the existence of the current through the region so that the dispersed phase in the fluidized bed is exposed to the first fluid.

    Abstract translation: 一种用于将颗粒暴露于流体的方法和装置,包括以下步骤:将流体和颗粒添加到其中具有叶轮装置的容器中,用叶轮产生电流,以使颗粒受到导致形成井的离心和对流力 定义和定位的颗粒流化床,并且保持电流通过流化床的存在,使得颗粒由此暴露于流体。 当颗粒比流体更致密时,流化床位于从叶轮移除的区域中,并且当颗粒比流体密度低时,流化床位于靠近叶轮的区域中。 还公开了将第一流体暴露于第二流体的方法,第二流体是在第一流体中不混溶的气体或液体。 该方法包括以下步骤:将第一和第二流体添加到其中具有叶轮装置的容器中,用叶轮产生在第一流体中的电流,其使第二流体受到离心和对流力,导致形成良好限定和局部化 残留在靠近叶轮的区域中的第二流体的分散相的床,并且保持电流的存在通过该区域,使得流化床中的分散相暴露于第一流体。

    Rotating fluidized bed heat exchanger
    99.
    发明授权
    Rotating fluidized bed heat exchanger 失效
    旋转流化床热交换器

    公开(公告)号:US4313301A

    公开(公告)日:1982-02-02

    申请号:US102196

    申请日:1979-10-25

    CPC classification number: F02C7/08 B01J8/382 F28D11/02 F28D13/00

    Abstract: A rotating fluidized bed heat exchanger particularly adaptable as a heat exchange unit in the recuperator section of conventional gas turbine engines comprising an annular fluidized bed, defined by inner and outer spaced apart coaxial cylindrical, perforated walls, which rotates about the longitudinal axis of the cylinders. The bed is comprised of pulverulent inert particulate material and includes fluid-containing heat exchange tubes passing substantially longitudinally therethrough. Hot gases, such as turbine exhaust gases, enter the bed through the outer perforated wall, heat and fluidize the bed particles, heat the fluid, usually compressed air, in the tubes, and exit the bed through the inner perforated wall. The heat exchange tubes direct the fluid flowing therein from an inlet adjacent the inner perforated wall to an outlet adjacent the outer perforated wall such that the fluid flows substantially countercurrently to the hot fluidizing gas. In a preferred embodiment, the heat exchange tubes comprise an inlet tube extending longitudinally adjacent the inner perforated wall, an outlet tube extending longitudinally adjacent the outer perforated wall and a plurality of tubes interconnecting the inlet and outlet tubes.

    Abstract translation: 特别适用于常规燃气涡轮发动机的换热器部分中的热交换单元的旋转流化床热交换器,其包括由内部和外部间隔开的同心圆柱形的穿孔壁限定的环形流化床,其围绕气缸的纵向轴线旋转 。 该床由粉状惰性颗粒材料组成,并且包括基本上纵向通过的含有流体的热交换管。 诸如汽轮机废气的热气体通过外部穿孔壁进入床,加热和流化床颗粒,加热管中的流体,通常是压缩空气,并通过内部穿孔壁离开床。 热交换管将从内部穿孔壁附近的入口流出的流体引向邻近外部穿孔壁的出口,使得流体基本上与热流化气体逆流流动。 在优选实施例中,热交换管包括纵向邻近内部穿孔壁延伸的入口管,邻近外部穿孔壁纵向延伸的出口管和连接入口管和出口管的多个管。

    Method and apparatus for preheating a rotatable fluidizable bed
    100.
    发明授权
    Method and apparatus for preheating a rotatable fluidizable bed 失效
    用于预热可旋转的可流化床的方法和装置

    公开(公告)号:US4288215A

    公开(公告)日:1981-09-08

    申请号:US153009

    申请日:1980-05-27

    Applicant: George B. Grim

    Inventor: George B. Grim

    CPC classification number: F27B15/02 B01J8/382 F23C10/007 F23R5/00

    Abstract: A method for preheating a rotatable fluidizable bed (106) comprises rotating the bed chamber (112) slowly to cause the particles (114) to slowly tumble and mix. During tumbling, one or more burners (150, 160) extending into the chamber (112), heat the particles (114) until the desired operating or ignition temperature is reached. Temperature sensors (170) in thermal communication with the bed particles (114) sense the temperature and provide either an indication thereof or an initiating signal which, in the case of a rotating fluidized bed combustor (10), terminates preheating, accelerates the bed chamber (112) rotation to normal combustor (10) operating speed and/or introduces fluidizing air and/or fuel flow through the bed chamber (112).

    Abstract translation: 预热可旋转的可流化床(106)的方法包括缓慢地旋转床室(112)以使颗粒(114)缓慢地滚动并混合。 在翻滚期间,延伸到腔室(112)中的一个或多个燃烧器(150,160)加热颗粒(114),直到达到期望的操作或着火温度。 与床颗粒(114)热连通的温度传感器(170)感测温度并提供其指示或启动信号,其在旋转流化床燃烧器(10)的情况下终止预热,加速床室 (112)旋转到正常燃烧器(10)的运行速度和/或引入通过床室(112)的流化空气和/或燃料流。

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