Method for producing highly pure, granular silicon in a fluidised bed
    93.
    发明申请
    Method for producing highly pure, granular silicon in a fluidised bed 失效
    在流化床中生产高纯度颗粒状硅的方法

    公开(公告)号:US20040151652A1

    公开(公告)日:2004-08-05

    申请号:US10478608

    申请日:2004-03-31

    Abstract: The present invention relates to a method for producing highly pure, granular silicon with a narrow particle-size distribution by decomposing silanes or halosilanes in a fluidised bed and epitaxially growing silicon on silicon seed particles, which method is characterised in that the gas containing silicon is supplied to the reaction chamber in an upward flow and the contents of the fluidised bed are separated in a continuous or discontinuous manner, whereby a particle stream from the fluidised bed is supplied to a separator mounted outside the fluidised bed, particles of the desired size are separated and undersized particles are returned to the fluidised bed. The invention also relates to a device and the use thereof for carrying out said method.

    Abstract translation: 本发明涉及通过在流化床中分解硅烷或卤代硅烷并在硅种子颗粒上外延生长硅来生产具有窄粒度分布的高纯度粒状硅的方法,该方法的特征在于含硅气体为 以向上的流动供应到反应室,并且流化床的内容物以连续或不连续的方式分离,由此来自流化床的颗粒物流被供应到安装在流化床外部的分离器,所需尺寸的颗粒是 分离和尺寸过小的颗粒返回到流化床。 本发明还涉及一种用于执行所述方法的装置及其用途。

    Reactor for testing catalyst systems
    94.
    发明申请
    Reactor for testing catalyst systems 失效
    用于测试催化剂体系的反应器

    公开(公告)号:US20040126285A1

    公开(公告)日:2004-07-01

    申请号:US10478684

    申请日:2003-12-05

    Abstract: A reactor for testing catalyst systems which has a plurality of catalyst tubes (2) which are arranged parallel to one another in the interior space of the reactor and whose ends are welded into tube plates and also has caps (3) at each end of the reactor which each bound a cap space (4), with a fluid reaction medium (5) being fed via one cap space (4) into the catalyst tubes (2), flowing through the catalyst tubes (2) and being discharged via the other cap space (4), and is also provided with a heat exchange medium circuit in which the heat exchange medium (6) is fed in at one end of the reactor, flows through the intermediate space between the catalyst tubes (2) and flows out at the other end of the reactor, wherein the catalyst tubes (2) are arranged in two or more catalyst tube regions (7) which are thermally separate from one another, is proposed.

    Abstract translation: 一种用于测试催化剂体系的反应器,其具有多个催化剂管(2),所述多个催化剂管(2)在所述反应器的内部空间中彼此平行地布置,并且其端部被焊接到管板中,并且在所述反应器的每一端具有盖(3) 反应器,每个反应器结合盖空间(4),流体反应介质(5)经由一个盖空间(4)进入催化剂管(2),流过催化剂管(2)并经由另一个排出 盖子空间(4),并且还设置有热交换介质回路,其中热交换介质(6)在反应器的一端进料,流过催化剂管(2)之间的中间空间并流出 在反应器的另一端,其中催化剂管(2)布置在彼此热分离的两个或更多个催化剂管区域(7)中。

    Radial ammonia converters
    98.
    发明授权
    Radial ammonia converters 失效
    径向氨转化器

    公开(公告)号:US4346060A

    公开(公告)日:1982-08-24

    申请号:US134616

    申请日:1980-03-27

    Abstract: A radial ammonia converter system including first and second heat interchangers and first, second and third catalyst beds. The synthesis gas is heated in said first and second interchangers by catalyst bed effluent prior to full flow through each of the catalyst beds. In one embodiment, two of the catalyst beds are mounted with the first and second interchangers in one vessel; and in another embodiment, the first interchanger and second catalyst bed are mounted in one vessel and the second interchanger and first catalyst bed are mounted in a separate vessel. In both embodiments, the radial ammonia converter system is completed by a third catalyst bed in a separate vessel.

    Abstract translation: 一种径向氨转换器系统,包括第一和第二热交换器以及第一,第二和第三催化剂床。 在完全流过每个催化剂床之前,催化剂床流出物在所述第一和第二换热器中加热合成气。 在一个实施例中,两个催化剂床与第一和第二交换器一起安装在一个容器中; 并且在另一个实施方案中,将第一交换器和第二催化剂床安装在一个容器中,并将第二交换器和第一催化剂床安装在单独的容器中。 在两个实施方案中,径向氨转化器系统由独立容器中的第三催化剂床完成。

    Synthesis reactor with particular cooling means for exothermic reactions at high pressure
    100.
    发明授权
    Synthesis reactor with particular cooling means for exothermic reactions at high pressure 失效
    具有特殊冷却功能的合成反应器,用于高压下的高温反应

    公开(公告)号:US3753662A

    公开(公告)日:1973-08-21

    申请号:US3753662D

    申请日:1970-11-03

    Applicant: MONTEDISON SPA

    Abstract: Apparatus for high pressure-exothermic and catalytic reactions in the gaseous phase, for instance the synthesis of ammonia or methanol, has a substantially cylindrical shape and contains more than one superimposed catalyst bed and a cooling heat exchanger of the tube bundle type, the tube bundle is contained in a substantially cylindrical and coaxial shell and is longitudinally and completely partitioned into first and second separate halves by a plane baffle which substantially contains the axis of said tube bundle. The outlet opening on the shell side of the first half is directly connected to the inlet of a first catalyst bed. The inlet opening on the shell side of the second half is directly connected to the outlet of said first catalyst bed. The outlet opening on the shell side of the second half is directly connected to the inlet of a subsequent catalyst bed.

    Abstract translation: 用于气相中高压放热和催化反应的装置,例如氨或甲醇的合成,具有基本上圆柱形的形状,并且包含多于一个的叠层催化剂床和管束型的冷却热交换器,管束 被包含在基本上圆柱形和同轴的壳体中,并且通过基本上包含所述管束的轴线的平面挡板纵向和完全地分隔成第一和第二分隔的半部。 第一半壳体侧的出口直接连接到第一催化剂床的入口。 第二半壳体侧的入口直接连接到所述第一催化剂床的出口。 第二半壳体侧的出口直接连接到随后的催化剂床的入口。

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