Dual wall axial flow electric heater for leak sensitive applications
    1.
    发明授权
    Dual wall axial flow electric heater for leak sensitive applications 有权
    双壁轴流式电加热器用于泄漏敏感应用

    公开(公告)号:US08260126B2

    公开(公告)日:2012-09-04

    申请号:US12653694

    申请日:2009-12-17

    Abstract: A dual wall axial flow electric heater for leak sensitive applications provides an improved corrosion and leak resistant assembly and includes protective tubes over electrical heater rods, double tubesheets spaced apart by a plenum and leak detectors positioned to sensor leaks through the walls of the protective tubes. The design includes the option of two or more tube bundles with each inserted into opposite ends of a shell surrounding the tube sheets and heaters. The design provides ease of maintenance since each heater rod can be replaced independently while the unit is in service. Variable heat flux is provided from standard single flux heater rods by providing protective tubes of varying diameters. A built-in thermowell is provided to allow the rod temperatures to be monitored directly. Hot spots are avoided by the use of turning baffles and vibration is avoided by use of spider baffles to support the tubes.

    Abstract translation: 用于泄漏敏感应用的双壁轴流式电加热器提供改进的耐腐蚀和防漏组件,并且包括电加热棒上的保护管,由气室间隔开的双管板和位于传感器通过保护管壁泄漏的泄漏检测器。 该设计包括两个或更多个管束的选项,每个管束插入围绕管板和加热器的壳体的相对端部。 该设计提供了易于维护,因为在单元使用时,可以独立地更换每个加热棒。 通过提供不同直径的保护管,从标准单通道加热棒提供可变热通量。 提供内置热套管,以便直接监控棒温。 通过使用转向挡板来避免热点,并且通过使用蜘蛛挡板来避免振动以支撑管。

    Apparatus and process for hydrogenation of a silicon tetrahalide and silicon to the trihalosilane
    2.
    发明申请
    Apparatus and process for hydrogenation of a silicon tetrahalide and silicon to the trihalosilane 有权
    将四卤化硅和硅氢化成三卤代硅烷的装置和方法

    公开(公告)号:US20100111804A1

    公开(公告)日:2010-05-06

    申请号:US12291115

    申请日:2008-11-05

    CPC classification number: C01B33/10773 B01J8/1827 B01J8/24 C01B33/1071

    Abstract: A reactor for hydrogenation of a silicon tetrahalide and metallurgical grade silicon to trihalosilane includes a bed of metallurgical silicon particles, one or more gas entry ports, one or more solids entry ports, one or more solids drains and one or more ports for removing the trihalosilane from the reactor. Fresh surfaces are generated on the bed particles by internal grinding and abrasion as a result of entraining feed silicon particles in a silicon tetrahalide/hydrogen feed stream entering the reactor and impinging that stream on the bed of silicon particles. This has the advantages of higher yield of the trihalosilane, higher burnup rate of the MGS, removal of spent MGS as a fine dust carryover in the trihalosilane effluent leaving the reactor and longer times between shutdowns for bed removal.

    Abstract translation: 用于将四卤化硅和冶金级硅氢化成三卤代硅烷的反应器包括冶金硅颗粒床,一个或多个气体入口,一个或多个固体入口,一个或多个固体排水口和用于除去三卤代硅烷的一个或多个端口 从反应堆。 通过内部研磨和磨损在床颗粒上产生新鲜的表面,这是由于在进入反应器的四卤化硅/氢气进料流中引入硅颗粒并将该物流撞击在硅颗粒床上的结果。 这具有三卤代硅烷的高产率,较高的MGS燃耗率,在离开反应器的三卤代硅烷流出物中清除废MGS作为细粉尘携带的优点,以及用于床去除的关闭之间更长的时间。

    Apparatus and method for top removal of granular material from a fluidized bed deposition reactor
    3.
    发明申请
    Apparatus and method for top removal of granular material from a fluidized bed deposition reactor 审中-公开
    从流化床沉积反应器顶部去除颗粒材料的装置和方法

    公开(公告)号:US20080299015A1

    公开(公告)日:2008-12-04

    申请号:US11810422

    申请日:2007-06-04

    Abstract: Removal of the product from the top of the reactor enables a decreased disengaging height and provides a passive means of controlling the bed level despite deposition increasing the weight and height of the bed. The savings from reducing the disengaging height allow use of a taller fluidized bed in a shorter overall reactor length and thus provides increased production with reduced reactor cost. The separation of the gas inlet from the product outlet allows the gas inlet area to be cooler than the product outlet. The separation of the product grinding, caused by the inlet gas, from the product outlet reduces the loss of seed in the product and produces a more uniform product. Removing the hot product and the hot gas at the same place allows energy recovery from both in a single step.

    Abstract translation: 从反应器顶部除去产物能够降低分离高度,并提供控制床层的被动方式,尽管沉积增加了床的重量和高度。 通过降低脱离高度的节省可以在更短的整个反应器长度中使用较高的流化床,从而在降低的反应堆成本的情况下提供增加的产量。 气体入口与产品出口的分离允许气体入口区域比产品出口更冷。 从产品出口分离由入口气体引起的产品研磨减少了产品中种子的损失并产生更均匀的产品。 在同一地点清除热产物和热气体可以在一个步骤中从两者中恢复能量。

    Apparatus and process for hydrogenation of a silicon tetrahalide and silicon to the trihalosilane
    4.
    发明授权
    Apparatus and process for hydrogenation of a silicon tetrahalide and silicon to the trihalosilane 有权
    将四卤化硅和硅氢化成三卤代硅烷的装置和方法

    公开(公告)号:US08178051B2

    公开(公告)日:2012-05-15

    申请号:US12291115

    申请日:2008-11-05

    CPC classification number: C01B33/10773 B01J8/1827 B01J8/24 C01B33/1071

    Abstract: A reactor for hydrogenation of a silicon tetrahalide and metallurgical grade silicon to trihalosilane includes a bed of metallurgical silicon particles, one or more gas entry ports, one or more solids entry ports, one or more solids drains and one or more ports for removing the trihalosilane from the reactor. Fresh surfaces are generated on the bed particles by internal grinding and abrasion as a result of entraining feed silicon particles in a silicon tetrahalide/hydrogen feed stream entering the reactor and impinging that stream on the bed of silicon particles. This has the advantages of higher yield of the trihalosilane, higher burnup rate of the MGS, removal of spent MGS as a fine dust carryover in the trihalosilane effluent leaving the reactor and longer times between shutdowns for bed removal.

    Abstract translation: 用于将四卤化硅和冶金级硅氢化成三卤代硅烷的反应器包括冶金硅颗粒床,一个或多个气体入口,一个或多个固体入口,一个或多个固体排水口和用于除去三卤代硅烷的一个或多个端口 从反应堆。 通过内部研磨和磨损在床颗粒上产生新鲜的表面,这是由于在进入反应器的四卤化硅/氢气进料流中引入硅颗粒并将该物流撞击在硅颗粒床上的结果。 这具有三卤代硅烷的高产率,较高的MGS燃耗率,在离开反应器的三卤代硅烷流出物中清除废MGS作为细粉尘携带的优点,以及用于床去除的关闭之间更长的时间。

    Apparatus for restarting a gas-solids contactor
    5.
    发明申请
    Apparatus for restarting a gas-solids contactor 有权
    用于重新启动气固体接触器的装置

    公开(公告)号:US20110222365A1

    公开(公告)日:2011-09-15

    申请号:US12661137

    申请日:2010-03-10

    Abstract: A gas-solids contactor modification is described which provides for starting or restarting the gas flow to the gas-solids contactor when it is filled with solid particles while preventing the solids from entering and blocking one or more gas inlets which have diameters greater than the solid particle diameters. The apparatus modification comprises a gas plenum and one or more chambers within the gas plenum located between the contactor inlet and the gas inlet. The wall of the chamber has multiple passageways therethrough that are smaller in diameter than the majority of the bed particles. Gas feed to the plenum must pass through the passageways in the chamber walls before entering the contactor. In one embodiment the total open area of the passageways is at least as large as the cross-sectional area of the gas inlet and the inlet to the contactor.

    Abstract translation: 描述了一种气体 - 固体接触器修改,其在填充固体颗粒时提供气体 - 固体接触器的气流的启动或重新启动,同时防止固体进入和堵塞一个或多个直径大于固体的气体入口 粒径。 设备改造包括位于接触器入口和气体入口之间的气室内的气室和一个或多个室。 室的壁具有穿过其的多个通道,其直径小于大多数床粒子的直径。 在进入接触器之前,气室进入气室必须通过室壁中的通道。 在一个实施例中,通道的总开口面积至少与气体入口的横截面积和接触器的入口一样大。

    Process for removing aluminum and other metal chlorides from chlorosilanes
    6.
    发明授权
    Process for removing aluminum and other metal chlorides from chlorosilanes 有权
    从氯硅烷中除去铝和其他金属氯化物的方法

    公开(公告)号:US07736614B2

    公开(公告)日:2010-06-15

    申请号:US12080918

    申请日:2008-04-07

    CPC classification number: C01B33/10778

    Abstract: A process for removing aluminum and other metal chlorides from liquid chlorosilanes with the steps of: introducing a source of seed into a source of impure liquid chlorosilanes, initiating the crystallization of aluminum and other metal chlorides on the seed from the liquid chlorosilanes in a first agitated vessel, passing the resulting mixture of liquid and solids through a cooler into a second agitated vessel for additional crystallization, transferring the resulting mixture of liquid and solids into a solids removal device, transferring the liquid with reduced solids content to a further process or vessel and transferring the liquid with high solids content into a waste concentration device, passing the resulting liquid with reduced solids content to a further process or vessel and passing the resultant liquid with very high solids content to a waste storage vessel with agitation.

    Abstract translation: 一种从液体氯硅烷中除去铝和其它金属氯化物的方法,其步骤是:将种子源引入不纯液体氯硅烷的来源中,在第一次搅拌下从液体氯硅烷中引发铝和其它金属氯化物在种子上的结晶 将所得到的液体和固体混合物通过冷却器通入第二搅拌容器中以进行另外的结晶,将所得到的液体和固体混合物转移到固体去除装置中,将具有降低的固体含量的液体转移到另外的方法或容器中, 将具有高固体含量的液体转移到废物浓缩装置中,将得到的具有降低的固体含量的液体通入另一种方法或容器,并将所得到的具有非常高固体含量的液体通过搅拌送入废物储存容器。

    Apparatus for high temperature hydrolysis of water reactive halosilanes and halides and process for making same
    7.
    发明申请
    Apparatus for high temperature hydrolysis of water reactive halosilanes and halides and process for making same 审中-公开
    用于水反应性卤代硅烷和卤化物的高温水解的装置及其制备方法

    公开(公告)号:US20100061912A1

    公开(公告)日:2010-03-11

    申请号:US12283077

    申请日:2008-09-08

    Abstract: A process for high temperature hydrolysis of halosilanes and halides with the steps of: providing a bed of fluidized particulate material heated to at least 300° C., injecting steam and an excess of reactants into the reactor, removing solid waste from a bottom outlet, removing the effluent gases through a solids removal device such as a cyclone, condensing and separating some of the unreacted waste from the effluent gas in a distillation column and sending the effluent gases containing hydrogen and hydrogen chloride to a compressor. In a preferred embodiment the reactants contain at least one water reactive halide, selected from the group halosilane, organohalosilane, aluminum halide, titanium halide, boron halide, manganese halide, copper halide, iron halide, chromium halide, nickel halide, indium halide, gallium halide and phosphorus halide and where the halide content is selected from chlorine, bromine and iodine.

    Abstract translation: 一种用于卤代硅烷和卤化物的高温水解的方法,其步骤为:提供加热到至少300℃的流化颗粒材料床,将蒸汽和过量的反应物注入反应器中,从底部出口除去固体废物, 通过诸如旋风分离器的固体去除装置除去流出气体,在蒸馏塔中冷凝并分离出一些未反应的废物与废气,并将含有氢气和氯化氢的废气送到压缩机。 在优选的实施方案中,反应物含有至少一种选自卤代硅烷,有机卤​​代硅烷,卤化铝,卤化钛,卤化硼,卤化锰,卤化铜,卤化铁,卤化铬,卤化镍,卤化铟,镓 卤化物和卤化磷,卤化物含量选自氯,溴和碘。

    Dual wall axial flow electric heater for leak sensitive applications
    8.
    发明申请
    Dual wall axial flow electric heater for leak sensitive applications 有权
    双壁轴流式电加热器用于泄漏敏感应用

    公开(公告)号:US20110150440A1

    公开(公告)日:2011-06-23

    申请号:US12653694

    申请日:2009-12-17

    Abstract: A dual wall axial flow electric heater for leak sensitive applications provides an improved corrosion and leak resistant assembly and includes protective tubes over electrical heater rods, double tubesheets spaced apart by a plenum and leak detectors positioned to sensor leaks through the walls of the protective tubes. The design includes the option of two or more tube bundles with each inserted into opposite ends of a shell surrounding the tube sheets and heaters. The design provides ease of maintenance since each heater rod can be replaced independently while the unit is in service. Variable heat flux is provided from standard single flux heater rods by providing protective tubes of varying diameters. A built-in thermowell is provided to allow the rod temperatures to be monitored directly. Hot spots are avoided by the use of turning baffles and vibration is avoided by use of spider baffles to support the tubes.

    Abstract translation: 用于泄漏敏感应用的双壁轴流式电加热器提供改进的耐腐蚀和防漏组件,并且包括电加热棒上的保护管,由气室间隔开的双管板和位于传感器通过保护管壁泄漏的泄漏检测器。 该设计包括两个或更多个管束的选项,每个管束插入围绕管板和加热器的壳体的相对端部。 该设计提供了易于维护,因为在单元使用时,可以独立地更换每个加热棒。 通过提供不同直径的保护管,从标准单通道加热棒提供可变热通量。 提供内置热套管,以便直接监控棒温。 通过使用转向挡板来避免热点,并且通过使用蜘蛛挡板来避免振动以支撑管。

    Method for safe handling of unstable hydride gases
    9.
    发明授权
    Method for safe handling of unstable hydride gases 有权
    安全处理不稳定氢化物气体的方法

    公开(公告)号:US07150353B2

    公开(公告)日:2006-12-19

    申请号:US10633462

    申请日:2003-08-01

    Abstract: A method for safely handling unstable hydrides, such as germane, in an enclosure which has one or more openings, by partitioning the enclosure into smaller but interconnected volumes and providing heat storage and transfer within the enclosure to rapidly remove heat from any incipient hot spot before it can reach a temperature where it could rapidly propagate to the rest of the enclosure. A preferred embodiment includes where the partitioning material comprises part or all of the means to store the heat and has a large surface area to rapidly adsorb heat from the gases in the smaller volume. An even more preferred embodiment is where the partitioning material comprises materials that can be poured into the enclosure. The use of sensible heat, phase change or chemical reactions are feasible ways to store the heat.

    Abstract translation: 一种用于在具有一个或多个开口的外壳中安全地处理不稳定的氢化物(例如锗烷)的方法,其通过将外壳分隔成较小但相互连接的体积并在外壳内提供热存储和转移,以便在任何初始热点之前快速移除热量 它可以达到可以快速传播到外壳其余部分的温度。 优选的实施方案包括其中分隔材料包含储存热量的部分或全部装置,并且具有大的表面积以快速吸附较小体积的气体的热量。 甚至更优选的实施例是分隔材料包括可以倒入外壳的材料。 使用显热,相变或化学反应是储存热量的可行方法。

    Process for hydrogenation of a silicon tetrahalide and silicon to trihalosilane
    10.
    发明申请
    Process for hydrogenation of a silicon tetrahalide and silicon to trihalosilane 审中-公开
    将四卤化硅和硅氢化成三卤代硅烷的方法

    公开(公告)号:US20120171100A1

    公开(公告)日:2012-07-05

    申请号:US13385850

    申请日:2012-03-09

    CPC classification number: C01B33/10773 B01J8/1827 B01J8/24 C01B33/1071

    Abstract: A process of hydrogenation of a silicon tetrahalide and silicon to a trihalosilane comprising: providing a vessel with at least one inlet and one outlet with a plurality of silicon particles located in a bed inside the vessel and feeding a mixture of gases consisting primarily of a silicon tetrahalide and hydrogen. A calculational procedure is provided where the flow rate of the gases and the incoming size of the silicon particulates are chosen so that at least 90% of the volume of the bed is free of bubbles after allowance for decrease in particle size due to the reaction and attrition resulting in a higher yield of the trihalosilane.

    Abstract translation: 一种将四卤化硅和硅氢化成三卤硅烷的方法,包括:向容器提供至少一个入口和一个出口,多个硅颗粒位于容器内的床中,并且供给主要由硅组成的气体混合物 四卤化物和氢气。 提供了一种计算程序,其中选择气体的流速和硅微粒的进入尺寸,使得由于反应而允许颗粒尺寸减小,床的至少90%的体积没有气泡,并且 磨损导致三卤代硅烷的较高产率。

Patent Agency Ranking