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    Desulfurizing organosulfur heterocycles in feeds with supported sodium
    21.
    发明授权
    Desulfurizing organosulfur heterocycles in feeds with supported sodium 有权
    用负载的钠脱硫有机硫杂环

    公开(公告)号：US07507327B2

    公开(公告)日：2009-03-24

    申请号：US11227802

    申请日：2005-09-14

    申请人： Jeffrey M. Dysard ,  Zhigou Hou ,  Jonathan M. McConnachie ,  Andrzej Malek ,  Ramesh Gupta ,  William E. Lewis

    发明人： Jeffrey M. Dysard ,  Zhigou Hou ,  Jonathan M. McConnachie ,  Andrzej Malek ,  Ramesh Gupta ,  William E. Lewis

    IPC分类号： C10G19/073 ,  C10G29/04

    CPC分类号： C10G45/02 ,  C10G19/073 ,  C10G29/04 ,  C10G65/04 ,  C10G67/10

    摘要： Refractory or hard sulfur found in a hydrocarbon stream containing refractory sulfur heterocycle compounds, particularly those exhibiting steric hindrance, is removed from the stream by contacting it with a sodium reagent comprising a sodium component, having free sodium, supported on a solid support component. If the hydrocarbon stream contains more labile or easy sulfur, then it is treated, typically by hydrodesulfurization, to remove at least most of the labile sulfur before it is contacted with the sodium reagent. This is useful for bringing the sulfur level of middle distillate fuel streams, such as diesel and jet fuel fractions, down to a level of less than about 10 wppm, employing conventional hydrodesulfurizing catalysts and conditions.

    摘要翻译： 在含有难溶性硫杂环化合物的烃流中，特别是那些表现出空间位阻的烃流中发现的耐火或硬硫通过与包含负载在固体支持组分上的具有游离钠的钠组分的钠试剂接触而从流中除去。 如果烃流含有更多的不稳定或易硫化物，那么通常通过加氢脱硫来处理至少大部分不稳定的硫，然后再与钠试剂接触。 这对于使用常规的加氢脱硫催化剂和条件将中等馏出物燃料流（例如柴油和喷气燃料馏分）的硫含量降低到低于约10wppm的水平是有用的。

    Multi-control password changing
    22.
    发明授权
    Multi-control password changing 有权
    多控制密码更改

    公开(公告)号：US09049189B2

    公开(公告)日：2015-06-02

    申请号：US13728803

    申请日：2012-12-27

    申请人： Anil Goel ,  Ramesh Gupta ,  Asif Iqbal Desai ,  Vivek Kandiyanallur ,  Somnath Ghosh

    发明人： Anil Goel ,  Ramesh Gupta ,  Asif Iqbal Desai ,  Vivek Kandiyanallur ,  Somnath Ghosh

    IPC分类号： G06F17/30 ,  H04L29/06 ,  G06F21/45

    CPC分类号： H04L63/083 ,  G06F21/45 ,  H04L63/20

    摘要： Multi-control password changing includes initiating a password change cycle to change a target user's password, selecting a plurality of administrators to provide password part inputs, receiving password part inputs separately and confidentially from the plurality of administrators, generating a multi-control password comprised of multiple password part inputs, changing the target user's password to the multi-control password, and transmitting either the single multi-control password or multiple password parts each separately to target user. In an exemplary embodiment, a system for multi-control password changing includes a multi-control password changing module configured to change a target user's password, a recruitment module configured to select a plurality of administrators to provide password part inputs, a regulation module configured to receive and process password part inputs from the plurality of administrators, and a change value module configured to generate a multi-control password comprised of multiple password part inputs.

    摘要翻译： 多控制密码改变包括启动密码更改周期以改变目标用户的密码，选择多个管理员以提供密码部分输入，从多个管理员分别和保密地接收密码部分输入，生成由多个管理员组成的多控制密码 多个密码部分输入，将目标用户的密码更改为多重密码，并将单个多重密码或多个密码分别单独发送给目标用户。 在示例性实施例中，用于多控制密码改变的系统包括被配置为改变目标用户密码的多控制密码改变模块，被配置为选择多个管理员以提供密码部分输入的招聘模块，配置为 接收和处理来自多个管理员的密码部分输入;以及变更值模块，被配置为生成由多个密码部分输入组成的多重控制密码。

    Method and apparatus for managing variable density drilling mud
    26.
    发明授权
    Method and apparatus for managing variable density drilling mud 有权
    用于管理可变密度钻井泥浆的方法和装置

    公开(公告)号：US07677332B2

    公开(公告)日：2010-03-16

    申请号：US12160999

    申请日：2007-02-13

    申请人： Paul Matthew Spiecker ,  Pavlin B. Entchev ,  Ramesh Gupta ,  Richard Polizzotti ,  Barbara Carstensen ,  Dennis G. Peiffer ,  Norman Pokutylowicz

    发明人： Paul Matthew Spiecker ,  Pavlin B. Entchev ,  Ramesh Gupta ,  Richard Polizzotti ,  Barbara Carstensen ,  Dennis G. Peiffer ,  Norman Pokutylowicz

    IPC分类号： E21B21/01 ,  E21B21/06 ,  E21B21/08

    CPC分类号： E21B21/002 ,  E21B21/00 ,  E21B21/062 ,  E21B21/066 ,  Y10S507/906

    摘要： A method and system for drilling a wellbore is described. The system includes a wellbore with a variable density drilling mud, drilling pipe, a bottom hole assembly disposed in the wellbore and a drilling mud processing unit in fluid communication with the wellbore. The variable density drilling mud has compressible particles and drilling fluid. The bottom hole assembly is coupled to the drilling pipe while the drilling mud processing unit is configured to separate the compressible particles from the variable density drilling mud. The compressible particles in this embodiment may include compressible hollow objects filled with pressurized gas an configured to maintain the mud weight between the fracture pressure gradient and the pore pressure gradient. In addition, the system and method may also manage the use of compressible particles having different characteristics, such as size, during the drilling operations.

    摘要翻译： 描述了钻井井的方法和系统。 该系统包括具有可变密度钻井泥浆，钻井管，设置在井筒中的井底组件和与井筒流体连通的钻井泥浆处理单元的井筒。 可变密度钻井泥浆具有可压缩颗粒和钻井液。 井底组件联接到钻井管道，而钻井泥浆处理单元构造成将可压缩颗粒与可变密度钻井泥浆分离。 该实施例中的可压缩颗粒可以包括填充有加压气体的可压缩中空物体，其构造成在破裂压力梯度和孔隙压力梯度之间保持泥浆重量。 此外，该系统和方法还可以在钻井操作期间管理具有不同特征的尺寸的可压缩颗粒的使用。

    Method of removing sulfur from sulfur-containing hydrocarbon streams
    29.
    发明申请
    Method of removing sulfur from sulfur-containing hydrocarbon streams 有权
    从含硫烃流中除去硫的方法

    公开(公告)号：US20060138029A1

    公开(公告)日：2006-06-29

    申请号：US11286583

    申请日：2005-11-23

    申请人： Andrzej Malek ,  Ramesh Gupta

    发明人： Andrzej Malek ,  Ramesh Gupta

    IPC分类号： C10G29/04

    CPC分类号： C10G67/02 ,  C10G19/067 ,  C10G19/073 ,  C10G29/04 ,  C10G45/02 ,  C10G2300/202 ,  C10G2300/4081

    摘要： The use of one or more alkali metals, preferably sodium, to remove sulfur from hydrocarbon streams containing up to about 100 wppm sulfur. The hydrocarbon stream is introduced into a reactor where it is contacted with one or more alkali metals. The treated hydrocarbon stream is then subjected to a water wash thereby resulting in an aqueous phase fraction and a hydrocarbon phase fraction. The aqueous phase fraction, which is separated from the hydrocarbon phase fraction contains water-soluble sodium moieties.

    摘要翻译： 使用一种或多种碱金属，优选钠，从含有高达约100wppm硫的烃流中除去硫。 将烃流引入反应器中，在其中与一种或多种碱金属接触。 然后对经处理的烃流进行水洗，从而得到水相馏分和烃相馏分。 与烃相馏分分离的水相馏分含有水溶性钠部分。

    Mitigation of top of catalyst bed fouling
    30.
    发明申请
    Mitigation of top of catalyst bed fouling 审中-公开
    催化剂床顶部污垢减轻

    公开(公告)号：US20050232834A1

    公开(公告)日：2005-10-20

    申请号：US11047865

    申请日：2005-02-01

    申请人： Tahmid Mizan ,  Ramesh Gupta

    发明人： Tahmid Mizan ,  Ramesh Gupta

    IPC分类号： B01J8/00 ,  B01J8/02 ,  B01J8/04 ,  B01J19/00

    CPC分类号： B01J19/002 ,  B01J8/0085 ,  B01J8/025 ,  B01J8/0453 ,  B01J2208/00707

    摘要： This invention relates to reactors with mitigation of fouling-related pressure buildup, the reactors having a reactor bed containing at least one catalyst layer through which reactants flow. The mitigation of fouling which occurs at the top of the reactor bed is accomplished by using at least one blowback ring located near the top of the reactor bed.

    摘要翻译： 本发明涉及具有减轻结垢相关压力累积的反应器，该反应器具有反应器床，该反应器床含有至少一个催化剂层，反应物通过该催化剂层流动。 通过使用位于反应器床顶部附近的至少一个回吹环来实现在反应器床的顶部发生的减轻污染。