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23 条记录 (耗时 0.042 秒)

    Passivation of steel surface to reduce coke formation
    2.
    发明授权
    Passivation of steel surface to reduce coke formation 有权
    钝化钢表面以减少焦炭的形成

    公开(公告)号：US07056399B2

    公开(公告)日：2006-06-06

    申请号：US10425544

    申请日：2003-04-29

    申请人： Haiyong Cai ,  Michael C. Oballa ,  Andrzej Krzywicki ,  Leslie Wilfred Benum

    发明人： Haiyong Cai ,  Michael C. Oballa ,  Andrzej Krzywicki ,  Leslie Wilfred Benum

    IPC分类号： C21D1/74

    CPC分类号： C10G75/00 ,  C10G2300/705 ,  C10G2300/708 ,  C23C8/02 ,  C23C8/18 ,  C23C8/80

    摘要： The present invention provides a process to treat steels, preferably carbon steel to reduce the tendency of the steel to form coke when in contact with hydrocarbons at elevated temperatures. The steel may be first reduced then treated with a mixture of compounds which further modify the reduced surface and finally the treated steel surface is cured. The treated steel has a reduced propensity to form coke when in contact with hydrocarbons particularly at higher temperatures.

    摘要翻译： 本发明提供了一种处理钢，优选碳钢的方法，以降低在高温下与烃接触时钢形成焦炭的倾向。 可以先将钢还原，然后用进一步改性还原表面的化合物混合物处理，最后处理的钢表面固化。 当与烃接触时，经处理的钢具有降低的焦炭形成倾向，特别是在较高温度下。

    Decoke enhancers for transfer line exchangers
    4.
    发明授权
    Decoke enhancers for transfer line exchangers 失效
    对传输线路交换机进行增强

    公开(公告)号：US06772771B2

    公开(公告)日：2004-08-10

    申请号：US10108519

    申请日：2002-03-28

    申请人： Haiyong Cai ,  Michael C. Oballa ,  Andrzej Krzywicki ,  Ted Magtanong ,  Les Benum

    发明人： Haiyong Cai ,  Michael C. Oballa ,  Andrzej Krzywicki ,  Ted Magtanong ,  Les Benum

    IPC分类号： B08B308

    CPC分类号： C10G9/16

    摘要： In a steam cracking operation the formation of coke is a problem which needs to be overcome. While significant work has been done on decoking of furnaces little work has been done regarding transfer line exchangers. Coking of transfer line exchangers (TLE) may be reduced by injection of a solution containing at least one group 1 or 2 metal dichromate or dichromate and one or more of a group 1, 2 or 7 metal carbonate into the TLE.

    摘要翻译： 在蒸汽裂解操作中，焦炭的形成是需要克服的问题。 虽然在窑炉取样方面做了大量工作，但是对转换线路交换机的工作很少。 转移线交换器（TLE）的焦化可以通过将包含至少一种1或2族金属重铬酸盐或重铬酸盐和一种或多种第1,2或7种金属碳酸盐的溶液注入到TLE中来降低。

    ANODE CATALYSTS FOR FUEL CELL MEMBRANE REACTORS
    7.
    发明申请
    ANODE CATALYSTS FOR FUEL CELL MEMBRANE REACTORS 有权
    燃料电池反应器的阳极催化剂

    公开(公告)号：US20110212384A1

    公开(公告)日：2011-09-01

    申请号：US13024249

    申请日：2011-02-09

    申请人： Jing-li Luo ,  Xian-zhu Fu ,  Nemanja Danilovic ,  Karl T. Chuang ,  Alan R. Sanger ,  Andrzej Krzywicki

    发明人： Jing-li Luo ,  Xian-zhu Fu ,  Nemanja Danilovic ,  Karl T. Chuang ,  Alan R. Sanger ,  Andrzej Krzywicki

    IPC分类号： H01M4/90 ,  H01M8/22 ,  H01M8/10 ,  B01J23/26

    CPC分类号： H01M4/8652 ,  H01M4/90 ,  H01M4/9016 ,  H01M8/0637 ,  H01M2004/8684 ,  H01M2008/1095 ,  Y02E60/566

    摘要： Anode catalysts for conversion of hydrocarbon feeds in solid oxide fuel cell membrane reactors. An anode catalyst may be a mixture of a metal with a metal oxide, for example a mixture of copper or copper-nickel alloy or copper-cobalt alloy with Cr2O3. Mixed oxides can be prepared by dissolving into water soluble salts of the different metals, chelating the metal ions with a chelating agent, neutralizing the solution, removing water by evaporation to form a gel which then is dried, and finally heating the dried gel to form a mixed oxide of the different metals. The chelating agent can be citrate ions, and ammonia can be added to the solution until the pH of the solution is about 8. The mixed oxide so formed then is reduced, for example by hydrogen, to form a composite comprising the metal (Cu, Cu—Co, Cu—Ni) and metal oxide, here Cr2O3. Typically, the composite oxides so formed comprise approximately spherical nanoparticles, and the reduced composites are nanoparticles comprising very small particles of the metal within a network of the oxide, Cr2O3.

    摘要翻译： 用于在固体氧化物燃料电池膜反应器中转化烃进料的阳极催化剂。 阳极催化剂可以是金属与金属氧化物的混合物，例如铜或铜 - 镍合金或铜 - 钴合金与Cr 2 O 3的混合物。 混合氧化物可以通过将不同金属的水溶性盐溶解，用螯合剂螯合金属离子，中和溶液，通过蒸发除去水以形成凝胶，然后干燥，最后加热干燥的凝胶形成 不同金属的混合氧化物。 螯合剂可以是柠檬酸根离子，并且可以向溶液中加入氨，直到溶液的pH为约8.然后如此形成的混合氧化物例如由氢还原形成包含金属（Cu， Cu-Co，Cu-Ni）和金属氧化物，这里是Cr 2 O 3。 通常，如此形成的复合氧化物包含近似球形的纳米颗粒，并且还原的复合材料是在氧化物Cr 2 O 3的网络内包含非常小的金属颗粒的纳米颗粒。