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    Fluid distribution across a particulate bed
    31.
    发明授权
    Fluid distribution across a particulate bed 失效
    流体分布在颗粒床上

    公开(公告)号：US5799877A

    公开(公告)日：1998-09-01

    申请号：US582602

    申请日：1996-01-03

    Applicant: Ramesh Gupta ,  Jeffrey W. Frederick

    Inventor： Ramesh Gupta ,  Jeffrey W. Frederick

    IPC: B01D3/00 ,  B01D3/20 ,  B01J8/02 ,  B01J8/04 ,  A62C5/02

    CPC classification number: B01D3/20 ,  B01D3/008 ,  B01J8/0278 ,  B01J8/0492

    Abstract: A means and method for spraying liquid and gas onto and across a particulate bed includes a horizontal liquid distribution tray disposed over the bed containing a plurality of gas and liquid spray distributors extending through the tray. The distributors include separate gas and liquid conduits or pipes having an entrance on top and an exit below, with the exits proximate each other underneath the tray. The conduits are coaxial with a portion of the gas conduit surrounded by the liquid conduit to define an annular space between them for the liquid to flow downwardly through. The gas flows down through the gas conduit, exiting as a gas core surrounded by the downflowing liquid. The gas expands and contacts the surrounding liquid to spray it on the matter below. A liquid spray generating device is located below the gas and liquid exit. Siphon caps automatically provide pulse flow of the liquid. Combining the siphon caps with orifices or slots in the liquid conduit below the siphon line automatically provides both continuous and pulse spray of the liquid onto the bed below.

    Abstract translation: 用于将液体和气体喷射到颗粒床上并穿过颗粒床的装置和方法包括设置在床上的水平液体分配盘，其包含延伸穿过托盘的多个气体和液体喷洒分配器。 分配器包括单独的气体和液体管道或管道，其具有在顶部的入口和下面的出口，出口在托盘下方彼此靠近。 导管与由液体管道包围的气体导管的一部分同轴，以在液体管道之间限定一个环形空间，以使液体向下流动。 气体向下流动通过气体管道，作为由下降流体液体围绕的气体芯出口。 气体膨胀并接触周围的液体，以将其喷洒在下面的物质上。 液体喷雾发生装置位于气体和液体出口下方。 虹吸帽自动提供液体的脉冲流。 将虹吸帽与虹吸管下方的液体管道中的孔或槽组合，自动提供液体在下面床上的连续和脉冲喷雾。

    Multi-stage hydroprocessing in a single reaction vessel
    32.
    发明授权
    Multi-stage hydroprocessing in a single reaction vessel 失效
    在单个反应容器中进行多级加氢处理

    公开(公告)号：US5705052A

    公开(公告)日：1998-01-06

    申请号：US775636

    申请日：1996-12-31

    Applicant: Ramesh Gupta

    Inventor： Ramesh Gupta

    IPC: C10G45/04 ,  C10G45/50 ,  C10G45/52 ,  C10G47/16 ,  C10G47/18 ,  C10G49/00 ,  C10G65/02 ,  C10G65/04 ,  C10G51/02

    CPC classification number: C10G49/002 ,  C10G65/02 ,  C10G65/04 ,  C10G2300/1096 ,  C10G2300/202 ,  C10G2300/207 ,  C10G2300/4018 ,  C10G2300/4093

    Abstract: A process for hydroprocessing liquid petroleum and chemical streams in a single reaction vessel containing two or more hydroprocessing reaction stages. The liquid product from the first reaction stage is stripped of H.sub.2 S, NH.sub.3 and other dissolved gases, then sent to the next downstream reaction stage. The product from the downstream reaction stage is also stripped of dissolved gases and sent to the next downstream reaction stage until the last reaction stage, the liquid product of which is stripped of dissolved gases and collected or passed on for further processing. The flow of treat gas is in a direction opposite the direction in which the reaction stages are staged for the flow of liquid.

    Abstract translation: 在含有两个或多个加氢处理反应阶段的单个反应容器中加氢处理液体石油和化学物流的方法。 从第一反应阶段的液体产物中除去H 2 S，NH 3和其他溶解气体，然后送至下一个下游反应阶段。 来自下游反应阶段的产物也被除去溶解的气体并送到下一个下游反应阶段，直到最后的反应阶段，其液体产物被汽提出溶解的气体并收集或通过进一步处理。 处理气体的流动方向与反应级分为液体流动方向相反。

    Catalytic reactor having bed bypass
    33.
    发明授权
    Catalytic reactor having bed bypass 失效
    具有床旁路的催化反应器

    公开(公告)号：US4313908A

    公开(公告)日：1982-02-02

    申请号：US198793

    申请日：1980-10-20

    Applicant: Ramesh Gupta

    Inventor： Ramesh Gupta

    IPC: B01D3/16 ,  B01J8/04 ,  B01J10/00 ,  C10G45/02 ,  C10G47/00 ,  C10G49/00 ,  B01J3/02 ,  B01J4/00 ,  B01J19/24

    CPC classification number: B01J8/0492 ,  B01J8/0453 ,  C10G49/002

    Abstract: The invention is for a two phase gas and liquid mixture reacting in an improved fixed bed reactor having at least one auxiliary bed disposed above the main bed. The auxiliary beds each have separate liquid and gas bypasses comprising hollow tubing of relatively different lengths extending through the auxiliary bed. The gas bypass tubing projects to a greater height above the auxiliary bed than the liquid bypass tubing. This tubing bypass arrangement allows for a low pressure drop bypass of the auxiliary bed to the main bed by the liquid and gas when the auxiliary bed becomes fouled.

    Abstract translation: 本发明涉及在改进的固定床反应器中反应的两相气液混合物，其具有设置在主床上方的至少一个辅助床。 辅助床各自具有单独的液体和气体旁路，其包括延伸穿过辅助床的相对不同长度的中空管。 气体旁路管道突出到辅助床上方比液体旁路管道更高的高度。 这种管道旁路装置允许当辅助床被弄脏时液体和气体的辅助床对主床的低压降旁路。

    Exhaust heat recovery system
    37.
    发明申请
    Exhaust heat recovery system 审中-公开
    废热回收系统

    公开(公告)号：US20100154394A1

    公开(公告)日：2010-06-24

    申请号：US12318133

    申请日：2008-12-22

    Applicant: Randall D. Partridge ,  Ramesh Gupta ,  Kouseki Sugiyama

    Inventor： Randall D. Partridge ,  Ramesh Gupta ,  Kouseki Sugiyama

    IPC: F01N3/02 ,  F28D7/00

    CPC classification number: F28D15/0275 ,  F01N5/02 ,  F01N2240/02 ,  F02M1/165 ,  F02M31/005 ,  F02M31/20 ,  F02M37/0064 ,  F28D21/0003 ,  F28F1/12 ,  Y02T10/126 ,  Y02T10/16

    Abstract: An exhaust heat recovery system 25 provided with a plurality of heat pipes 60, 61 provided with heat recovery parts 60a, 61a and heat exchange parts 60b, 61b. The heat pipes recover heat from exhaust gas exhausted from an internal combustion engine at the heat recovery parts and transfer this recovered heat to an object to be heated at the heat exchange parts. The heat recovery part 60a of the first heat pipe 60 recovers heat from the exhaust gas at an exhaust purification catalyst 20′ provided in an engine exhaust passage or its upstream side. The heat recovery part 61b of the second heat pipe 61 recovers heat from the exhaust gas at the downstream side of the exhaust purification catalyst. Due to this, there is provided an exhaust heat recovery system which can recover at least a fixed amount of exhaust heat at all times while maintaining a warm-up performance of the exhaust purification catalyst.

    Abstract translation: 具有设置有热回收部60a，61a和热交换部60b，61b的多个热管60,61的排气热回收系统25。 热管从热回收部分的内燃机排出的废气中回收热量，并将该回收的热量传递到在热交换部件处被加热的物体。 第一热管60的热回收部60a在设置在发动机排气通路或其上游侧的排气净化催化剂20'处从废气中回收热量。 第二热管61的热回收部61b从排气净化催化剂的下游侧的排气回收热量。 因此，提供了一种废气热回收系统，其能够在保持排气净化催化剂的预热性能的同时始终恢复至少一定量的排气热。

    Method and Apparatus For Managing Variable Density Drilling Mud
    38.
    发明申请
    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：US20100116553A1

    公开(公告)日：2010-05-13

    申请号：US12691783

    申请日：2010-01-22

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

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

    IPC: C09K8/02

    CPC classification number: E21B21/002 ,  E21B21/00 ,  E21B21/062 ,  E21B21/066 ,  Y10S507/906

    Abstract: 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 and 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.

    Abstract translation: 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开。 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，并且被配置为保持裂缝压力梯度和孔隙压力梯度之间的泥浆重量。 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。

    Multistage removal of heteroatoms and wax from distillate fuel
    39.
    发明申请
    Multistage removal of heteroatoms and wax from distillate fuel 有权
    从馏出燃料中多步去除杂原子和蜡

    公开(公告)号：US20050092654A1

    公开(公告)日：2005-05-05

    申请号：US10938301

    申请日：2004-09-10

    Applicant: Edward Ellis ,  Ramesh Gupta ,  William Novak

    Inventor： Edward Ellis ,  Ramesh Gupta ,  William Novak

    IPC: C10G65/04 ,  C10G69/02

    CPC classification number: C10G65/043

    Abstract: A distillate fuel feed is hydrotreated to remove heteroatoms and then separated into light and heavy hydrotreated fractions, with the heavy fraction catalytically dewaxed to improve low temperature properties. The hydrotreating and dewaxing are conducted in separate stages, which may be in the same reactor vessel. Fresh hydrogen may be passed into the dewaxing stage, with the dewaxing stage gaseous effluent then passed into the hydrotreating stage to provide hydrogen for the hydrotreating. Existing hydrotreating reaction vessels and facilities may be retrofitted to add one or more dewaxing stages.

    Abstract translation: 将馏出物燃料进料加氢处理以除去杂原子，然后分离成轻重和加氢处理的馏分，重馏分催化脱蜡以改善低温性能。 加氢处理和脱蜡在不同的阶段进行，可以在同一个反应器容器中。 新鲜的氢气可以进入脱蜡阶段，脱蜡阶段的气态流出物然后进入加氢处理阶段以提供氢气用于加氢处理。 现有的加氢处理反应容器和设备可以被改装以加入一个或多个脱蜡阶段。

    Fouling tolerant fixed bed reactor with virtual second bed
    40.
    发明授权
    Fouling tolerant fixed bed reactor with virtual second bed 失效
    具有虚拟第二床的防污固定床反应器

    公开(公告)号：US06689329B2

    公开(公告)日：2004-02-10

    申请号：US09974561

    申请日：2001-10-10

    Applicant: Ramesh Gupta ,  Salvatore Joseph Rossetti

    Inventor： Ramesh Gupta ,  Salvatore Joseph Rossetti

    IPC: B01J804

    CPC classification number: B01J8/008 ,  B01J8/025 ,  B01J8/0278 ,  B01J2208/00707 ,  C10G49/002

    Abstract: The invention is directed to a bypass device for extending the operating life of fixed bed reactors. The device may be placed within a fixed catalyst bed to partition the bed into a first top bed and a second virtual bed. The bypass device allows any fluid feedstock to bypass the first top bed of the fixed catalyst bed as it fouls and enter the second virtual bed under conditions that promote depositing any foulants contained in the bypass flow on the top surface of the second virtual bed rather than in the interstices of the second virtual bed. The invention also relates to an improved fixed bed reactor comprising the inventive bypass device and a method for extending the operating life of a fixed bed reactor that employs the inventive bypass device.

    Abstract translation: 本发明涉及一种用于延长固定床反应器的使用寿命的旁路装置。 该装置可以放置在固定的催化剂床内以将床分隔成第一顶床和第二虚拟床。 旁路装置允许任何流体原料绕其固定的催化剂床的第一顶层，因为它在有助于沉积在第二虚拟床的顶表面上的旁路流中的任何污染物的条件下进入第二虚拟床，而不是 在第二个虚拟床的空隙中。 本发明还涉及一种改进的固定床反应器，其包括本发明的旁路装置和用于延长采用本发明旁路装置的固定床反应器的使用寿命的方法。

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