Fluorescence based oxygen sensor systems
    1.
    发明授权
    Fluorescence based oxygen sensor systems 失效
    基于荧光的氧传感器系统

    公开(公告)号:US06664111B2

    公开(公告)日:2003-12-16

    申请号:US09935183

    申请日:2001-08-22

    Abstract: Sensing elements, sensor systems and methods for determining the concentration of oxygen and oxygen-related analytes in a medium are provided. The sensing element comprises a solid polymeric matrix material that is permeable to oxygen or an oxygen related analyte and an indicator that is covalently bonded to the solid polymeric matrix material. The indicator is a luminescent platinum group metal polyaromatic chelate complex capable of having its luminescence quenched by the presence of oxygen. The polyaromatic complex comprises three ligands, at least one of which is a bidentate diphenylphenanthroline. The polyaromatic complex is distributed substantially homogenously throughout the matrix material and is covalently bonded to the matrix material via a linker arm. The linker arm is attached to a phenyl group of a diphenylphenanthroline ligand and to the backbone of the polymeric matrix material. The sensor systems comprise the present sensing element, an excitation assembly, a detector assembly, and a processor assembly.

    Abstract translation: 提供用于确定介质中氧和氧相关分析物浓度的感测元件,传感器系统和方法。 感测元件包括可渗透氧气或氧相关分析物的固体聚合物基体材料和共价键合到固体聚合物基质材料上的指示剂。 该指示剂是能够通过存在氧而使发光淬灭的发光铂族金属多芳族螯合络合物。 多芳族络合物包含三个配体,其中至少一个是双齿二苯基菲咯啉。 多芳族复合物基本均匀地分布在整个基质材料中,并通过连接臂与基质材料共价键合。 连接臂连接到二苯基菲咯啉配体的苯基和聚合物基质材料的主链上。 传感器系统包括本感测元件,激励组件,检测器组件和处理器组件。

    Method of purifying a hydrogen stream using an electrochemical cell
    3.
    发明授权
    Method of purifying a hydrogen stream using an electrochemical cell 有权
    使用电化学电池纯化氢气流的方法

    公开(公告)号:US08790506B2

    公开(公告)日:2014-07-29

    申请号:US12731114

    申请日:2010-03-24

    Abstract: A method of purifying a hydrogen stream using an electrochemical cell having an enclosed electrically conductive cylindrical outer shell and a hollow wet polymeric membrane located within and parallel to the longitudinal axis of the cylindrical member which provides an inner compartment and an outer compartment. An electrode having a longitudinal axis is located within the inner compartment and is spaced from the hollow polymeric membrane. A gas inlet for feeding a hydrogen stream that is to be purified communicates with the inner compartment and a gas outlet is provided for passing purified hydrogen gas thru the cylindrical outer shell. The electrode within the hollow wet polymeric membrane is connected to an anode terminal of a dc supply with an electrical conductor and the outer shell of the cylindrical shaped member is connected to a cathode terminal of the dc supply with another electrical conductor.

    Abstract translation: 使用具有封闭的导电圆柱形外壳和位于圆柱形构件的纵向轴线内并平行于圆柱形构件的中空湿聚合物膜的电化学电池来净化氢气流的方法,其提供内隔室和外隔室。 具有纵向轴线的电极位于内部隔室内并与中空聚合物隔膜间隔开。 用于供给要净化的氢气流的气体入口与内部隔室相连,并且设置有气体出口,用于使纯化的氢气通过圆柱形外壳。 中空湿聚合物膜内的电极连接到具有电导体的直流电源的阳极端子,并且圆柱形构件的外壳通过另一电导体连接到直流电源的阴极端子。

    Self-regenerative process for contaminant removal from ammonia

    公开(公告)号:US06524544B1

    公开(公告)日:2003-02-25

    申请号:US09699100

    申请日:2000-10-27

    Abstract: A method and apparatus for the decontamination of fluid ammonia are described. Liquid or gaseous ammonia is purified of contaminants by passage through an adsorbent bed, the contaminants accumulating in the bed. A portion of the purified ammonia discharged from the bed is decomposed to hydrogen and nitrogen. The hydrogen is used to regenerate an adsorbent bed which has accumulated sufficient contaminants to reduce its ability to further decontaminate incoming ammonia satisfactorily. Preferably there are a plurality of interconnected adsorbent beds, with some being operated for ammonia decontamination while others are being regenerated, with their operations being reversed as needed to maintain a continual production of decontaminated ammonia from the plurality of beds. Computers or other controllers can be used to control such bed operations and interchanges. Internal production of hydrogen makes the system self-contained and no addition of hydrogen is needed.

    Method and apparatus for purification of hydride gas streams
    5.
    发明授权
    Method and apparatus for purification of hydride gas streams 有权
    用于净化氢气气流的方法和装置

    公开(公告)号:US06241955B1

    公开(公告)日:2001-06-05

    申请号:US09165791

    申请日:1998-10-02

    Abstract: A process and apparatus for the decontamination of gaseous contaminants (especially oxygen, carbon dioxide and water vapor) from hydride gases (including their lower alkyl analogs) down to ≦100 ppb contaminant concentration are described. The critical component is a high surface area metal oxide substrate with reduced metal active sites, which in various physical forms is capable of decontaminating such gases to ≦100 ppb, ≦50 ppb or ≦10 ppb level without being detrimentally affected by the hydride gases. The surface area of the substrate will be ≧100 m2/g, and preferably 200-800 m2/g. Oxides of various metals, especially manganese or molybdenum, can be used, and mixtures of integrated oxides, or one type of oxide coated on another, may be used. The substrate is preferably retained in a hydride-gas-resistant container which is installed in a gas supply line, such as to a gas- or vapor-deposition manufacturing unit. The invention provides final decontamination for hydride gas streams intended for gas- or vapor-deposition formation of high purity LED, laser (especially blue laser), electronic, optical or similar products, and can be used in combination with upstream preliminary decontamination process and/or upstream or downstream solid particulate removal units.

    Abstract translation: 描述了从氢化物气体(包括它们的低级烷基类似物)至<= 100ppb的污染物浓度去除污染气体污染物(特别是氧气,二氧化碳和水蒸气)的方法和装置。 关键组分是具有降低的金属活性位点的高表面积金属氧化物底物,其以各种物理形式能够将这些气体净化至<= 100ppb,<= 50ppb或<= 10ppb水平,而不受不利影响 氢化物气体。 基材的表面积> 100m2 / g,优选为200-800m2 / g。 可以使用各种金属,特别是锰或钼的氧化物,并且可以使用一体化氧化物或另一种类型的氧化物的混合物。 基板优选保持在安装在气体供给管线中的氢化物 - 气体保护容器中,例如气体或蒸气沉积制造单元。 本发明为用于气相或气相沉积形成高纯度LED,激光(特别是蓝色激光),电子,光学或类似产品的氢化物气流提供最终的净化,并且可以与上游预净化过程和/ 或上游或下游固体颗粒去除单元。

    Method for the removal of airborne molecular contaminants using oxygen and/or water gas mixtures
    6.
    发明授权
    Method for the removal of airborne molecular contaminants using oxygen and/or water gas mixtures 失效
    使用氧气和/或水气混合物去除空气传播的分子污染物的方法

    公开(公告)号:US08075704B2

    公开(公告)日:2011-12-13

    申请号:US10523371

    申请日:2004-06-01

    Abstract: The present invention discloses a method for the removal of a number of molecular contaminants from surfaces within a device. A purge gas containing oxygen and/or water is introduced into the interior of the device, contacting at least a portion of the interior surfaces. A contaminated purge gas is produced by transferring a portion of the contamination from the interior surfaces into the purge gas. The contaminated purge gas is removed from the device and the process is continued until the contaminant concentration in the contaminated purge gas is below a predetermined level.

    Abstract translation: 本发明公开了一种从装置内的表面除去多种分子污染物的方法。 含有氧气和/或水的净化气体被引入到装置的内部,与内表面的至少一部分接触。 污染的吹扫气体通过将一部分污染物从内表面转移到吹扫气体中而产生。 污染的净化气体从设备中移出,并且继续该过程直到污染的吹扫气体中的污染物浓度低于预定水平。

    Method for rapid activation or preconditioning of porous gas purification substrates
    8.
    发明授权
    Method for rapid activation or preconditioning of porous gas purification substrates 有权
    快速激活或预处理多孔气体净化基板的方法

    公开(公告)号:US06869463B2

    公开(公告)日:2005-03-22

    申请号:US10692019

    申请日:2003-10-23

    Abstract: A method is described for rapid and economical activation and/or preconditioning of gas purification substrates by providing forced convection of the preconditioning or activating gas through the pores of the substrate. The gas is pumped into the substrate-containing vessel and raised to an elevated pressure, which is maintained for a short predetermined time, followed by venting of contents of the vessel. The vessel is again pressurized with the purging gas to an elevated level, and the elevated pressure is maintained for a short predetermined time, followed by venting of the vessel. This cycle is repeated as often as needed or desired. Activation and/or preconditioning can be accomplished in a much shorter time and with much less gas usage compared to diffusion preconditioning and activation processes. This process is particularly suited for preconditioning and activation of gas purifier substrates for decontamination of gases down to ≦1 ppm contaminants.

    Abstract translation: 描述了通过提供预处理或活化气体通过衬底的孔的强制对流来快速和经济地激活和/或预处理气体净化衬底的方法。 将气体泵送到含底物的容器中并升高到升高的压力,其保持较短的预定时间,然后排出容器的内容物。 将容器再次用吹扫气体加压到升高的水平,并且升高的压力保持较短的预定时间,然后排出容器。 根据需要或期望,经常重复该循环。 激活和/或预处理可以在更短的时间内完成,并且与扩散预处理和激活过程相比,气体使用量更少。 该方法特别适用于气体净化器基板的预处理和激活,用于将污染物净化至<= 1ppm污染物。

    Method for the removal of airborne molecular contaminants using oxygen gas mixtures
    10.
    发明授权
    Method for the removal of airborne molecular contaminants using oxygen gas mixtures 有权
    使用氧气混合物去除空气传播的分子污染物的方法

    公开(公告)号:US07189291B2

    公开(公告)日:2007-03-13

    申请号:US10683903

    申请日:2003-10-10

    Abstract: The present invention discloses a method for the removal of a number of molecular contaminants from surfaces within a device. A purge gas containing oxygen and/or water is introduced into the interior of the device, contacting at least a portion of the interior surfaces. A contaminated purge gas is produced by transferring a portion of the contamination from the interior surfaces into the purge gas. The contaminated purge gas is removed from the device and the process is continued until the contaminant concentration in the contaminated purge gas is below a predetermined level.

    Abstract translation: 本发明公开了一种从装置内的表面除去多种分子污染物的方法。 含有氧气和/或水的净化气体被引入到装置的内部,与内表面的至少一部分接触。 污染的吹扫气体通过将一部分污染物从内表面转移到吹扫气体中而产生。 污染的净化气体从设备中移出,并且继续该过程直到污染的吹扫气体中的污染物浓度低于预定水平。

Patent Agency Ranking