High temperature ziegler-natta solution catalysts
    72.
    发明申请
    High temperature ziegler-natta solution catalysts 失效
    高温齐格勒 - 纳塔溶液催化剂

    公开(公告)号:US20030130108A1

    公开(公告)日:2003-07-10

    申请号:US10314796

    申请日:2002-12-09

    Inventor: Isam Jaber

    Abstract: The present invention provides a Ziegler-Natta catalyst useful in solution processes for the polymerization of olefins having a low amount of aluminum and magnesium. The catalysts of the present invention contain an alkyl silanol and have a molar ratio of Si:Ti from 0.25:1 to 4:1. The catalysts are effective for the solution polymerization of olefins at high temperatures.

    Abstract translation: 本发明提供了一种齐格勒 - 纳塔催化剂,其用于具有低量铝和镁的烯烃聚合的溶液方法中。 本发明的催化剂含有烷基硅烷醇并且Si:Ti的摩尔比为0.25:1至4:1。 该催化剂对于在高温下烯烃的溶液聚合是有效的。

    Self regulating formulations for safe hydrogen gettering

    公开(公告)号:US20030125196A1

    公开(公告)日:2003-07-03

    申请号:US10313045

    申请日:2002-12-06

    CPC classification number: B01J23/40 B01J23/74 B01J33/00 B01J37/0009

    Abstract: A method and composition are disclosed for preventing uncontrolled exothermic reaction in the presence of a catalyst. A catalyst deployed as a finely divided powder which is attached to the surface of a low melting point wax or wax-like material which is utilized as a carrier for the catalyst. During operation should the catalyst overheat due to uncontrolled conditions brought about by a run-away reaction the heat of reaction melts the low melting point wax which would itself wet the surface of the catalyst and prevent further catalysis.

    Method for hydrodesulfurization of light oil fraction
    75.
    发明申请
    Method for hydrodesulfurization of light oil fraction 审中-公开
    轻油馏分加氢脱硫方法

    公开(公告)号:US20030116473A1

    公开(公告)日:2003-06-26

    申请号:US10259417

    申请日:2002-09-30

    Abstract: A method for hydrodesulfurization which comprises introducing partially desulfurized oil, which is a light oil fraction containing sulfur, and hydrogen to a reactor packed with a hydrodesulfurization catalyst, wherein the partially desulfurized oil has a sulfur content of 2000 ppm or less and preferably a polycyclic aromatic compound content of 3 wt % or more, wherein the amount of hydrogen sulfide contained in the partially desulfurized oil and hydrogen introduced to the reactor is 1.5 mol % or less with respect to that of the hydrogen introduced, and wherein the hydrodesulfurization catalyst comprises a carrier comprising a porous inorganic oxide and also comprises tungsten and one of nickel and cobalt as a metal component supported on the carrier. The method allows the production of a desulfurized light oil having a sulfur content of 50 ppm or less without the use of a special crude oil, and under operation conditions providing high productivity.

    Abstract translation: 一种加氢脱硫方法,其包括将部分脱硫油(其是含硫的轻油馏分)和氢气引入装有加氢脱硫催化剂的反应器中,其中部分脱硫油的硫含量为2000ppm以下,优选多环芳烃 化合物含量为3重量%以上,其中,导入到反应器中的部分脱硫油中所含的硫化氢的量相对于引入的氢的量为1.5摩尔%以下,其中,所述加氢脱硫催化剂含有载体 包括多孔无机氧化物,并且还包含钨和作为负载在载体上的金属组分的镍和钴中的一种。 该方法允许生产具有50ppm或更低硫含量的脱硫轻油而不使用特殊原油,并且在提供高生产率的操作条件下。

    Method for producing membrane electrode assembly
    77.
    发明申请
    Method for producing membrane electrode assembly 有权
    膜电极组件的制造方法

    公开(公告)号:US20030114297A1

    公开(公告)日:2003-06-19

    申请号:US10221720

    申请日:2002-09-12

    CPC classification number: H01M8/1004 H01M8/1007 Y02E60/523 Y10T29/49108

    Abstract: The present invention relates to a Membrane Electrode Assembly (MEA) which significantly enhances power density as well as structural reliability and method for producing the same. More specifically, it relates to the Membrane Electrode Assembly which has a plurality of protuberances and method for producing the same. The present invention involves making supporting bodies to have a plurality of protuberances on one side of the supporting bodies, forming a catalyst layer on one side of the supporting bodies having the protuberances, interposing a polymer-electrolyte-membrane between the supporting bodies, aligning the supporting bodies for the protuberances to engage each other; and hot-pressing the aligned supporting bodies. The present invention can increase the area of a three-phase boundary in which oxidation-reduction reaction of hydrogen and oxygen occurs and decrease resistance to ion conduction; consequently fuel cells have the characteristic of a large output of power density.

    Abstract translation: 本发明涉及一种显着提高功率密度以及结构可靠性的膜电极组件(MEA)及其制造方法。 更具体地,本发明涉及具有多个突起的膜电极组件及其制造方法。 本发明涉及使支撑体在支撑体的一侧具有多个突起,在具有突起的支撑体的一侧上形成催化剂层,在支撑体之间插入聚合物 - 电解质膜, 支撑体为突起而互相配合; 并热压对准的支撑体。 本发明可以增加发生氢和氧的氧化还原反应的三相边界的面积,降低对离子传导的抵抗力; 因此燃料电池具有功率密度大的特征。

    Oxidation-insensitive polymer-stabilized noble metal colloids
    79.
    发明申请
    Oxidation-insensitive polymer-stabilized noble metal colloids 审中-公开
    氧化不敏感的聚合物稳定的贵金属胶体

    公开(公告)号:US20030100443A1

    公开(公告)日:2003-05-29

    申请号:US10303830

    申请日:2002-11-26

    Abstract: In an oxidation-insensitive polymer-stabilized noble metal colloid comprising noble metal particles which have one or more oxidation-insensitive polymers containing sulfonic acid groups or phosphonic acid groups coordinated to their surface, the polymers are selected from the group consisting of sulfonated, partially fluorinated or fluorinated polystyrene, sulfonated, partially sulfonated or fluorinated alkylene-styrene copolymers, sulfonated, perfluorinated alkylene-alkylene oxide copolymers, sulfonated polystyrene, sulfonated polyarylene oxides, sulfonated polyarylene ether sulfones, sulfonated polyarylene ether ketones, sulfonated polyphenylene, sulfonated polyphenylene sulfide and phosponated arylene oxides and phosphonated polybenzimidazoles, with the polymers mentioned being able to bear further substituents.

    Abstract translation: 在包含贵金属颗粒的氧化不敏感的聚合物稳定的贵金属胶体中,所述贵金属颗粒具有一个或多个含有与其表面配位的磺酸基团或膦酸基团的不含氧化物的聚合物,所述聚合物选自磺化部分氟化 或氟化聚苯乙烯,磺化,部分磺化或氟化的亚烷基 - 苯乙烯共聚物,磺化全氟化亚烷基 - 烯化氧共聚物,磺化聚苯乙烯,磺化聚芳醚,磺化聚亚芳基醚砜,磺化聚亚芳基醚酮,磺化聚亚苯基,磺化聚苯硫醚和磷酸亚芳基 氧化物和膦酸化的聚苯并咪唑,所提到的聚合物能够承受进一步的取代基。

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