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公开(公告)号：US06715912B2
公开(公告)日：2004-04-06
申请号：US10244349
申请日：2002-09-16
Applicant: John R. McWhirter , Prakash G. Balan
Inventor： John R. McWhirter , Prakash G. Balan
IPC: B01F304
CPC classification number: C12M27/02 , B01F3/04609 , B01F3/04773 , B01F7/00116 , B01F7/00133 , B01F7/00141 , B01F7/00291 , B01F7/00633 , B01F7/00641 , B01F2003/04645 , B01F2003/04673 , B01F2215/0422 , B01F2215/0431 , B01F2215/045 , B01F2215/0463 , B01J19/0066 , B01J19/18 , B01J19/1875 , C12M27/08 , F04D29/30
Abstract: A surface aeration impeller for use in a liquid filled tank. The impeller is rotatable about an axis perpendicular to the static liquid surface. The impeller has a plurality of blades mounted on the underside of a disc or disc-like surface. Each blade has a multi-faceted or curved geometry ranging from vertical at the point of attachment to the disc to partially inclined at the bottom. The blades are spaced circumferentially about the axis and are disposed at acute angles to radial lines from the axis of rotation of the impeller. The lower portions of the blades, which are inclined but non-vertical, are positioned at or below the static liquid surface. When the impeller is rotated, the lower portion pumps the liquid up onto the vertical portion of the blades where the liquid is discharged into a spray umbrella in a direction upwardly and outwardly away from the impeller. The design of the invention produces substantially higher oxygen transfer efficiency and overall liquid pumping rates than prior art designs and is particularly useful in the aeration of sewage and other wastewater.
Abstract translation: 用于液体填充罐的表面曝气叶轮。 叶轮可绕垂直于静态液体表面的轴线旋转。 叶轮具有安装在盘或盘状表面的下侧上的多个叶片。 每个刀片具有多面或弯曲的几何形状，从连接点处的垂直点到盘的部分倾斜。 叶片围绕轴线周向间隔开并且与从叶轮的旋转轴线的径向线成锐角地设置。 倾斜但不垂直的叶片的下部位于静态液体表面处或下方。 当叶轮旋转时，下部将液体泵送到叶片的垂直部分上，其中液体沿着向上和向外远离叶轮的方向被排放到喷雾伞中。 本发明的设计产生比现有技术设计显着更高的氧气转移效率和总体液体泵送速率，并且在污水和其它废水的通气中特别有用。
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公开(公告)号：US06376686B1
公开(公告)日：2002-04-23
申请号：US09946321
申请日：2001-09-05
Applicant: Prakash G. Balan
Inventor： Prakash G. Balan
IPC: C07D30106
CPC classification number: C07D301/06
Abstract: The invention is an olefin epoxidation process that comprises reacting olefin, oxygen, and hydrogen in a liquid medium in the presence of an epoxidation catalyst in a reactor system comprising a tank, a tube, a plurality of impellers, and means for inhibiting flow. The reactor system facilitates transfer of the hydrogen and oxygen to the liquid medium.
Abstract translation: 本发明是烯烃环氧化方法，其包括在包含罐，管，多个叶轮的反应器系统和用于抑制流动的装置的环氧化催化剂存在下，在液体介质中使烯烃，氧和氢反应。 反应器系统有利于将氢和氧转移到液体介质中。
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3.发明授权Multiphase reactor design incorporating filtration system for fixed—bed catalyst 失效多相反应器设计结合固定床催化剂的过滤系统公开(公告)号：US07642365B2
公开(公告)日：2010-01-05
申请号：US11890183
申请日：2007-08-03
Applicant: Prakash G. Balan
Inventor： Prakash G. Balan
IPC: C07D301/06 , B01J8/02
CPC classification number: B01J23/38 , B01D29/018 , B01D29/58 , B01J8/009 , B01J8/0257 , B01J29/89 , B01J2208/00814 , B01J2208/00849 , B01J2208/00876 , B01J2208/00884 , B01J2229/186 , B01J2229/42 , Y02P20/582
Abstract: A unique reactor configuration especially suitable for interphase mass transfer and mixing of multiple phases, i.e. gas(es), liquid(s), and solid(s) where reaction is catalyzed by a solid catalyst comprises a draught tube reactor wherein the solid catalyst particles are maintained in an annular space between the draught tube of the reactor and an annulus-defining wall by means of filter elements positioned downstream and optionally also upstream from the catalyst bed.
Abstract translation: 特别适用于反应由固体催化剂催化的多相（即气体，液体和固体）的相间传质和混合的独特的反应器构型包括引流管反应器，其中固体催化剂颗粒 通过位于下游和任选地也位于催化剂床上游的过滤元件保持在反应器的引流管和环形壁之间的环形空间中。
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4.发明授权Continuous multistage thermophilic aerobic and aerobic-anaerobic sludge treatment process 失效连续多级嗜热好氧和好氧厌氧污泥处理工艺公开(公告)号：US07563374B2
公开(公告)日：2009-07-21
申请号：US11904334
申请日：2007-09-26
Applicant: John R. McWhirter , Prakash G. Balan , Bradley A. Swope
Inventor： John R. McWhirter , Prakash G. Balan , Bradley A. Swope
IPC: C02F3/00
CPC classification number: C02F11/02 , C02F3/121 , C02F3/30 , C02F11/04 , C02F2301/106 , Y02W10/15 , Y02W10/27
Abstract: A continuous flow multistage aerobic wastewater sludge treatment system and process comprising at least two stages connected in series, each stage comprising one or more covered tanks, tank segments or compartments, each having an enclosed separate gas headspace, wherein the gas headspaces of each stage are connected in a specified sequence that may be identical to or different from the staging sequence followed by the sludge liquid. An oxygen containing gas stream, such as air or an oxygen enriched gas stream, is supplied to the headspace of each stage, and a means for aerating the sludge in one or more of the tanks, tank segments or compartments is provided to enhance the transfer of oxygen from the gas headspace into the sludge liquid for use by bacteria in digestion of the sludge. At least one stage of the sludge digestion system is operated at a thermophilic temperature above 50° C., and the flow of oxygen containing gas through the system can be co-current, countercurrent, or a mixture of both with respect to the flow of the liquid. Embodiments of the invention include use of the aerobic digestion system prior to anaerobic digestion.
Abstract translation: 一种连续流动多级有氧废水污泥处理系统和方法，包括至少两个级联的级联，每级包括一个或多个被覆盖的罐，罐段或隔室，每个具有封闭的单独的气体顶部空间，其中每个级的气体顶空是 以指定的序列连接，其可以与分级序列相同或不同，后续是污泥液体。 将含氧气流（例如空气或富氧气流）供应到每个级的顶部空间，并且提供用于使一个或多个罐，罐段或隔室中的污泥充气的装置，以增强转移 的氧气从气体顶部进入污泥液体，供细菌消化污泥使用。 污泥消化系统的至少一个阶段在高于50℃的高温温度下运行，并且通过系统的含氧气体的流动可以是并流，逆流或两者的混合物相对于 液体。 本发明的实施方案包括在厌氧消化之前使用好氧消化系统。
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5.发明授权Continuous multistage thermophilic aerobic and aerobic-anaerobic sludge treatment systems 有权连续多级嗜热好氧和需氧 - 厌氧污泥处理系统公开(公告)号：US07329340B2
公开(公告)日：2008-02-12
申请号：US11240986
申请日：2005-09-30
Applicant: John R. McWhirter , Prakash G. Balan , Bradley A. Swope
Inventor： John R. McWhirter , Prakash G. Balan , Bradley A. Swope
CPC classification number: C02F11/02 , C02F3/121 , C02F3/30 , C02F11/04 , C02F2301/106 , Y02W10/15 , Y02W10/27
Abstract: A continuous flow multistage aerobic wastewater sludge digestion system comprising at least two stages connected in series, each stage comprising one or more covered tanks, tank segments or compartments, each having an enclosed separate gas headspace, wherein the gas headspaces of each stage are connected in a specified sequence that may be identical to or different from the staging sequence followed by the sludge liquid. An oxygen containing gas stream, such as air or an oxygen enriched gas stream, is supplied to the headspace of each stage, and a means for aerating the sludge in one or more of the tanks, tank segments or compartments is provided to enhance the transfer of oxygen from the gas headspace into the sludge liquid for use by bacteria in digestion of the sludge. At least one stage of the sludge digestion system is operated at a thermophilic temperature above 50° C. and the flow of oxygen containing gas through the system can be co-current, countercurrent, or a mixture of both with respect to the flow of the liquid. Preferred embodiments of the invention include the use of this aerobic digestion system prior to anaerobic digestion.
Abstract translation: 一种连续流动多级有氧废水污泥消解系统，包括至少两个串联连接的阶段，每个阶段包括一个或多个被覆盖的罐，罐段或隔室，每个具有封闭的分开的气体顶部空间，其中每个级的气体顶空连接 指定的序列可以与分级序列相同或不同，后续是污泥液体。 将含氧气流（例如空气或富氧气流）供应到每个级的顶部空间，并且提供用于使一个或多个罐，罐段或隔室中的污泥充气的装置，以增强转移 的氧气从气体顶部进入污泥液体，供细菌消化污泥使用。 污泥消化系统的至少一个阶段在高于50℃的高温温度下操作，并且通过系统的含氧气体的流动可以是并流的，逆流的或两者的混合物相对于 液体。 本发明的优选实施方案包括在厌氧消化之前使用该需氧消化系统。
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Patent Agency Ranking
公开(公告)号：US06464384B2
公开(公告)日：2002-10-15
申请号：US09895418
申请日：2001-07-02
Applicant: Paul M. Kubera , John R. McWhirter , Bradley S. Dominik , Prakash G. Balan
Inventor： Paul M. Kubera , John R. McWhirter , Bradley S. Dominik , Prakash G. Balan
IPC: B01F718
CPC classification number: B01J19/1875 , B01F3/04609 , B01F3/04773 , B01F7/00116 , B01F7/00133 , B01F7/00141 , B01F7/00291 , B01F7/00633 , B01F7/00641 , B01F2003/04645 , B01F2003/04673 , B01F2215/0422 , B01F2215/0431 , B01F2215/045 , B01F2215/0463 , B01J2219/00768 , C12M27/02 , C12M27/08 , C12M27/20 , C12M29/08
Abstract: A system for providing improved bulk liquid mixing and effective gas-liquid contacting for mass transfer of the gas to the liquid, especially a non-Newtonian liquid, the viscosity of which decreases when under shearing conditions (shear thinning), in an upright tank. An upright draft tube is mounted within the tank and has a lower end spaced from the tank bottom and an upper end spaced below the surface of the liquid in the tank. A plurality of mixing impellers in the draft tube are sufficiently close to each other to establish a field or pattern of agitation to cause shear thinning and upflow throughout the draft tube and which produces significant turbulence at the liquid surface. A plurality of radially inwardly projecting, circumferentially spaced baffles extend from the draft tube and are proximate the mixing impellers to prevent swirling of the liquid within the draft tube. The system may also contain a surface aeration impeller and gas may be sparged into the vessel in or adjacent to the lower end of the draft tube.
Abstract translation: 一种用于提供改进的散装液体混合和有效的气 - 液接触的系统，用于将气体质量传递到液体，特别是非牛顿液体，其粘度在垂直罐中的剪切条件（剪切稀化）下降低。 直立通风管安装在水箱内，并且具有与罐底部间隔开的下端以及与罐体液体表面间隔开的上端。 引流管中的多个混合叶轮彼此充分接近以建立搅拌场或图案，从而在整个通流管中引起剪切变薄和向上流动并且在液体表面产生显着的湍流。 多个径向向内突出的周向隔开的挡板从引流管延伸并且靠近混合叶轮以防止在引流管内的液体旋转。 该系统还可以包含表面曝气叶轮，并且气体可以在引流管的下端中或附近喷射到容器中。
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公开(公告)号：US20090035150A1
公开(公告)日：2009-02-05
申请号：US12220957
申请日：2008-07-30
Applicant: John R. McWhirter , Prakash G. Balan , James Stanton
Inventor： John R. McWhirter , Prakash G. Balan , James Stanton
IPC: F01D5/14
CPC classification number: F01D5/028 , B01F3/04531 , B01F7/00466
Abstract: A surface aeration impeller incorporating a stabilizer cylinder that damps out and eliminates any sustained oscillatory or vibratory displacements normal to the axis of rotation when the impeller is in operation. The surface aeration design operates in a mechanically stable fashion under diverse loading conditions and at any static liquid level submergence of the impeller.
Abstract translation: 一种表面曝气叶轮，其包括稳定器筒，当叶轮运行时，该稳定器缸体能够阻止并消除与旋转轴线垂直的任何持续振荡或振动位移。 表面曝气设计在不同的负载条件下和在叶轮的任何静态液位淹没下以机械稳定的方式工作。
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8.发明授权Multiphase reactor design incorporating filtration system for fixed--bed catalyst 失效多相反应器设计结合了固定床催化剂的过滤系统公开(公告)号：US07279145B2
公开(公告)日：2007-10-09
申请号：US10385180
申请日：2003-03-10
Applicant: Prakash G. Balan
Inventor： Prakash G. Balan
IPC: B01J8/02
CPC classification number: B01J23/38 , B01D29/018 , B01D29/58 , B01J8/009 , B01J8/0257 , B01J29/89 , B01J2208/00814 , B01J2208/00849 , B01J2208/00876 , B01J2208/00884 , B01J2229/186 , B01J2229/42 , Y02P20/582
Abstract: A unique reactor configuration especially suitable for interphase mass transfer and mixing of multiple phases, i.e. gas(es), liquid(s), and solid(s) where reaction is catalyzed by a solid catalyst comprises a draught tube reactor wherein the solid catalyst particles are maintained in an annular space between the draught tube of the reactor and an annulus-defining wall by means of filter elements positioned downstream and optionally also upstream from the catalyst bed.
Abstract translation: 特别适用于反应由固体催化剂催化的多相（即气体，液体和固体）的相间传质和混合的独特的反应器构型包括引流管反应器，其中固体催化剂颗粒 通过位于下游和任选地也位于催化剂床上游的过滤元件保持在反应器的引流管和环形壁之间的环形空间中。
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公开(公告)号：US06860631B2
公开(公告)日：2005-03-01
申请号：US10818308
申请日：2004-04-05
Applicant: John R. McWhirter , Prakash G. Balan
Inventor： John R. McWhirter , Prakash G. Balan
CPC classification number: B01F7/00466 , B01F3/04609 , B01F3/04773 , B01F3/0478 , B01F7/00116 , B01F7/00133 , B01F7/00141 , B01F7/00291 , B01F7/00633 , B01F7/00641 , B01F2215/0422 , B01F2215/0431 , B01F2215/045 , B01F2215/0463 , B01J19/1875 , B01J2219/00768 , C12M27/02
Abstract: A surface aeration impeller for use in a liquid filled tank. The impeller is rotatable about an axis perpendicular to the static liquid surface. The impeller has a plurality of blades mounted on the underside of a disc or disc-like surface. Each blade has a multi-faceted or curved geometry ranging from vertical at the point of attachment to the disc to partially inclined at the bottom. The blades are spaced circumferentially about the axis and are disposed at acute angles to radial lines from the axis of rotation of the impeller. The lower portions of the blades, which are inclined but non-vertical, are positioned at or below the static liquid surface. When the impeller is rotated, the lower portion pumps the liquid up onto the vertical portion of the blades where the liquid is discharged into a spray umbrella in a direction upwardly and outwardly away from the impeller. The design of the invention produces substantially higher oxygen transfer efficiency and overall liquid pumping rates than prior art designs and is particularly useful in the aeration of sewage and other wastewater.
Abstract translation: 用于液体填充罐的表面曝气叶轮。 叶轮可绕垂直于静态液体表面的轴线旋转。 叶轮具有安装在盘或盘状表面的下侧上的多个叶片。 每个刀片具有多面或弯曲的几何形状，从连接点处的垂直点到盘的部分倾斜。 叶片围绕轴线周向间隔开并且与从叶轮的旋转轴线的径向线成锐角地设置。 倾斜但不垂直的叶片的下部位于静态液体表面处或下方。 当叶轮旋转时，下部将液体泵送到叶片的垂直部分上，其中液体沿着向上和向外远离叶轮的方向被排放到喷雾伞中。 本发明的设计产生比现有技术设计显着更高的氧气转移效率和总体液体泵送速率，并且在污水和其它废水的通气中特别有用。
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公开(公告)号：US06710194B1
公开(公告)日：2004-03-23
申请号：US10349655
申请日：2003-01-23
Applicant: Robert N. Cochran , Prakash G. Balan , Mark A. Liepa , Bernard Cooker
Inventor： Robert N. Cochran , Prakash G. Balan , Mark A. Liepa , Bernard Cooker
IPC: C07D30106
CPC classification number: C07D301/06
Abstract: Propylene oxide is produced by liquid phase reaction of propylene oxygen and hydrogen in contact with a solid epoxidation catalyst at elevated temperature and pressure, the reaction conditions being regulated to provide a weight ratio of dissolved oxygen to dissolved hydrogen in the liquid reaction mixture of at least 16.
Abstract translation: 环氧丙烷是通过在高温和高压下与固体环氧化催化剂接触的丙烯氧气和氢气的液相反应产生的，调节反应条件以提供至少在液体反应混合物中的溶解氧与溶解氢的重量比 16。
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