Composite Palladium Membrane Having Long-Term Stability for Hydrogen Separation
    3.
    发明申请
    Composite Palladium Membrane Having Long-Term Stability for Hydrogen Separation 审中-公开
    具有氢分离长期稳定性的复合钯膜

    公开(公告)号:US20090000480A1

    公开(公告)日:2009-01-01

    申请号:US12086936

    申请日:2005-12-23

    IPC分类号: B01D53/22

    摘要: The materials of adjoining porous metal substrate (12), oxide (14), and Pd-alloy membrane (16) layers of a composite, H2—separation palladium membrane (10) have respective thermal expansion coefficients (TEC) which differ from one another so little as to resist failure by TEC mismatch from thermal cycling. TEC differences (20, 22) of less than 3 μm/(m.k) between materials of adjacent layers are achieved by a composite system of a 446 stainless steel substrate, an oxide layer of 4 wt % yittria-zirconia, and a 77 wt % Pd-23 wt % Ag or 60 wt % Pd-40 wt % Cu, membrane, having TECs of 11, 11, and 13.9 μm/(m.k), respectively. The Intermediate oxide layer comprises particles forming pores having an average pore sizeless than 5 microns, and preferably less than about 3 microns, in thickness.

    摘要翻译: 复合H 2分离钯膜(10)的相邻多孔金属基底(12),氧化物(14)和Pd合金膜(16)层的材料各自具有彼此不同的热膨胀系数(TEC) 很少能抵抗TEC不匹配热循环的失效。 通过446不锈钢衬底,4重量%的氧化钇氧化物的氧化物层和77重量%的氧化铝的复合体系实现相邻层之间的小于3mum /(mk)的TEC差异(20,22) Pd-23wt%Ag或60wt%Pd-40wt%Cu,膜分别具有11,11和13.9mum /(mk)的TEC。 中间氧化物层包括形成具有平均孔隙的孔的颗粒,其厚度大于5微米,优选小于约3微米。

    Power Plant With Membrane Water Gas Shift Reactor System
    4.
    发明申请
    Power Plant With Membrane Water Gas Shift Reactor System 审中-公开
    电厂水膜换热器系统

    公开(公告)号:US20100104903A1

    公开(公告)日:2010-04-29

    申请号:US12086937

    申请日:2005-12-23

    IPC分类号: H01M8/18

    摘要: The fuel processing system of the present invention supplies a flow of H2-rich reformate to a water gas shift membrane reactor, comprising a water gas shift reaction region and a permeate region, separated by an H2-separation membrane H2 formed over a catalyst in the reaction region selectively passes through the H2-separation membrane to the permeate region for delivery to a use point (such as the fuel cell of a fuel cell power plant) A sweep gas, preferably steam, removes the H2 from the permeate region The direction of sweep gas flow relative to the reformate flow is controlled for H2-separation performance and is used to determine the loading of the catalyst in the reaction region Coolant, thermal and/or pressure control subsystems of the fuel cell power plant may be integrated with the fuel processing system

    摘要翻译: 本发明的燃料处理系统将富H2重整产物流向水煤气变换膜反应器提供,该反应器包括水煤气变换反应区和渗透区,由H 2分离膜H 2形成在催化剂上形成的H 2分离膜 反应区域选择性地通过H 2分离膜到达渗透区域以输送到使用点(例如燃料电池发电厂的燃料电池)。吹扫气体,优选蒸汽,从渗透区域去除H 2的方向 控制相对于重整产品流的吹扫气流为H 2分离性能,并用于确定催化剂在反应区域中的负载。燃料电池发电厂的冷却液,热和/或压力控制子系统可与燃料 处理系统

    High performance fuel processing system for fuel cell power plant
    6.
    发明授权
    High performance fuel processing system for fuel cell power plant 有权
    燃料电池发电厂高性能燃料处理系统

    公开(公告)号:US06932848B2

    公开(公告)日:2005-08-23

    申请号:US10402506

    申请日:2003-03-28

    摘要: A fuel processing system (FPS) (110) is provided for a fuel cell power plant (115) having a fuel cell stack assembly (CSA) (56). A water gas shift (WGS) reaction section (12, 120) of the FPS (110) reduces the concentration of carbon monoxide (CO) in the supplied hydrocarbon reformate, and a preferred oxidation (PROX) section (40) further reduces the CO concentration to an acceptable level. The WGS section (12, 120) includes a reactor (124) with a high activity catalyst for reducing the reformate Co concentration to a relatively low level, e.g., 2,000 ppmv or less, thereby relatively reducing the structural volume of the FPS (110). The high activity catalyst is active at temperatures as low as 250° C., and may be a noble-metal-on-ceria catalyst of Pt and Re on a nanocrystaline, cerium oxide-based support. Then only a low temperature PROX reactor (46) is required for preferential oxidation in the FPS (110).

    摘要翻译: 为具有燃料电池堆组件(CSA)(56)的燃料电池发电设备(115)提供燃料处理系统(FPS)(110)。 FPS(110)的水煤气变换(WGS)反应段(12,120)降低所提供的碳氢化合物重整产物中一氧化碳(CO)的浓度,优选的氧化(PROX)部分(40)进一步减少CO 浓度达到可接受水平。 WGS部分(12,120)包括具有高活性催化剂的反应器(124),用于将重整产物Co浓度降低到相对较低的水平,例如2,000ppmv或更低,从而相对减小FPS(110)的结构体积, 。 高活性催化剂在低至250℃的温度下是有活性的,并且可以是纳米晶体氧化铈基载体上Pt和Re的贵金属二氧化铈催化剂。 然后在FPS(110)中只需要一个低温PROX反应器(46)进行优先氧化。

    Method and structure for desulfurizing gasoline or diesel fuel for use in a fuel cell power plant
    7.
    发明申请
    Method and structure for desulfurizing gasoline or diesel fuel for use in a fuel cell power plant 审中-公开
    用于燃料电池发电厂的用于脱硫汽油或柴油的方法和结构

    公开(公告)号:US20050032640A1

    公开(公告)日:2005-02-10

    申请号:US10635268

    申请日:2003-08-07

    摘要: A sulfur scrubbing method and structure is operable to remove substantially all of the sulfur present in an undiluted oxygenated hydrocarbon fuel stock supply which can be used to power an internal combustion engine or a fuel cell power plant in a mobile environment, such as an automobile, bus, truck, boat, or the like, or in a stationary environment. The fuel stock can be gasoline, diesel fuel, or other like fuels which contain relatively high levels of organic sulfur compounds such as mercaptans, sulfides, disulfides, thiophenes, and the like. The undiluted hydrocarbon fuel supply is passed through a desulfurizer bed which is provided with a high surface area nickel reactant, and wherein essentially all of the nickel reactant in the scrubber bed reacts with sulfur in the fuel stream, so as to remove sulfur from the fuel stream by converting it to nickel sulfide on the scrubber bed. The desulfurized organic remnants of the fuel stream continue through the remainder of the fuel processing system in the fuel cell power plant, or through the internal combustion engine. The desulfurizer bed is preferably formed from a high surface area ceramic foam monolith, the pores of which are coated with the high surface area nickel reactant. The use of the foam monolith combined with the high surface area of the reactant, enables essentially 100% of the nickel reactant to come into contact with the fuel stream being desulfurized. The scrubber bed can also be formed from high surface area nickel coated alumina pellets, from a high surface area nickel coated ceramic extrusion, from high surface area nickel pellets, and from high surface area nickel extrudates.

    摘要翻译: 硫洗涤方法和结构可操作以基本上除去未稀释的含氧烃燃料原料供应中存在的硫,其可用于为移动环境(例如汽车)中的内燃机或燃料电池发电厂供电, 公共汽车,卡车,船等,或在静止的环境中。 燃料原料可以是汽油,柴油燃料或含有比较高含量的有机硫化合物如硫醇,硫化物,二硫化物,噻吩等的类似燃料。 未稀释的碳氢化合物燃料供应通过脱硫器床,该脱硫器床设置有高表面积的镍反应物,并且其中洗涤床中的基本上所有的镍反应物与燃料流中的硫反应,以便从燃料中除去硫 将其转化为洗涤床上的硫化镍。 燃料流的脱硫有机残余物继续通过燃料电池发电厂的燃料处理系统的其余部分,或通过内燃机。 脱硫剂床优选由高表面积的陶瓷泡沫整体形成,其孔被高表面积的镍反应物涂覆。 使用与反应物的高表面积结合的泡沫整体使基本上100%的镍反应物与正在脱硫的燃料流接触。 洗涤床还可以由高表面积镍涂层氧化铝颗粒,高表面积镍涂层陶瓷挤出物,高表面积镍颗粒和高表面积镍挤出物形成。

    Pd Menbrane Having Improved H2-Permeance, and Method of Making
    8.
    发明申请
    Pd Menbrane Having Improved H2-Permeance, and Method of Making 有权
    具有改善的H 2渗透率的Pd Menbrane和制备方法

    公开(公告)号:US20100005969A1

    公开(公告)日:2010-01-14

    申请号:US12311294

    申请日:2006-09-28

    摘要: An H2-permeable membrane system (117) comprises an electroless-deposited plating (115) of Pd or Pd alloy on a porous support (110, 110′). The Pd plating comprises face-centered cubic crystals cumulatively having a morphology of hexagonal platelets. The permeability to H2 of the membrane plating (115) on the porous support is significantly enhanced, being at least greater than about 1.3×10−8 mol·m−1·s−·Pa−0.5 at 350° C., and even greater than about 3.4×10−8 mol·m−1·s−1·Pa−0.5. The porous support (110, 110′) may be stainless steel (1100 and include a thin ceramic interlayer (110′) on which the Pd is plated. The method of providing the electroless-deposited plating includes preheating a Pd electroless plating solution to near a plating temperature substantially greater than room temperature, e.g. 60° C., prior to plating.

    摘要翻译: H 2可渗透膜系统(117)包括在多孔载体(110,110')上的Pd或Pd合金的无电沉积电镀(115)。 Pd电镀包括面心立方晶体,累积具有六角形血小板的形态。 在多孔载体上的膜电镀(115)的H 2的渗透性显着增强,在350℃下至少大于约1.3×10 -8 mol.m -1·s·Pa-0.5,甚至更大 大于约3.4×10-8 mol.m-1.s-1.Pa-0.5。 多孔载体(110,110')可以是不锈钢(1100,并且包括在其上镀有Pd的薄陶瓷中间层(110')。提供无电沉积电镀的方法包括将Pd化学镀溶液预热到接近 在电镀之前,电镀温度显着大于室温,例如60℃。