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    • 1. 发明授权
    • Catalytic partial oxidation of hydrocarbon fuels to hydrogen and carbon monoxide
    • 烃燃料催化部分氧化成氢和一氧化碳
    • US06221280B1
    • 2001-04-24
    • US09175125
    • 1998-10-19
    • Amarendra AnumakondaJean YamanisJoe Ferrall
    • Amarendra AnumakondaJean YamanisJoe Ferrall
    • C07C102
    • H01M8/0612C01B3/386C01B2203/0261C01B2203/066C01B2203/0811C01B2203/1023C01B2203/1064C01B2203/1082C01B2203/1247C01B2203/1276C01B2203/1288C01B2203/169
    • A method of processing sulfur-containing heavy hydrocarbon fuels in the substantial absence of steam through catalytic partial oxidation is described. The process comprises the steps of vaporizing a heavy hydrocarbon fuel and bringing the vaporized fuel and oxidizer mixture in contact with a noble metal catalyst supported on an open channel structure. The hydrocarbon fuel is considered to be a liquid hydrocarbon having at least six carbon atoms and a sulfur content of at least 50 ppm. The feed, containing only the vaporized fuel and oxygen in the oxidizer mixture, is subsequently routed through a reactor containing a noble metal catalyst (typically Rh/Alumina) at contact times of not more than about 500 milliseconds and a LHSV of not less than about 0.5 h−1. The feed is partially oxidized by a catalytic reaction occurring at a temperature of no less than about 1050° C., with the catalytic partial oxidation process producing essentially complete conversion of hydrocarbons present in the feed to hydrogen and carbon monoxide. The sulfur compounds in the feed are predominantly converted into hydrogen sulfide. The product gas consisting mainly of carbon monoxide and hydrogen can then be recovered or, alternatively, directed to a solid oxide fuel cell system.
    • 描述了通过催化部分氧化在基本上不存在蒸汽的情况下处理含硫重烃燃料的方法。 该方法包括蒸发重质烃燃料并使蒸发的燃料和氧化剂混合物与负载在开放通道结构上的贵金属催化剂接触的步骤。 烃燃料被认为是具有至少6个碳原子并且硫含量至少为50ppm的液态烃。 在氧化剂混合物中仅含有蒸发的燃料和氧气的进料随后在不大于约500毫秒的接触时间通过包含贵金属催化剂(通常为Rh /氧化铝)的反应器,并且LHSV不小于约 0.5 h-1。 进料通过在不低于约1050℃的温度下发生的催化反应被部分氧化,催化部分氧化过程产生进料中存在的烃基本上完全转化为氢气和一氧化碳。 进料中的硫化合物主要转化为硫化氢。 然后可以回收主要由一氧化碳和氢气组成的产物气体,或者替代地指向固体氧化物燃料电池系统。
    • 6. 发明申请
    • COMPOSITE SEAL FOR FUEL CELLS, PROCESS OF MANUFACTURE, AND FUEL CELL STACK USING SAME
    • 燃料电池的复合密封,制造工艺和使用其的燃料电池堆叠
    • US20130101915A1
    • 2013-04-25
    • US13806152
    • 2010-06-25
    • Jean YamanisSunil G. WarrierSarah Arsenault-PreeceJustin R. Hawkes
    • Jean YamanisSunil G. WarrierSarah Arsenault-PreeceJustin R. Hawkes
    • H01M8/02
    • H01M8/028H01M8/0282H01M8/0286H01M8/2425H01M8/2432H01M8/2457H01M8/249Y02P70/56
    • A seal is provided for use in a solid oxide fuel cell, wherein the seal is formed of alternating adjacent layers of a fiber tow material and a foil material. A solid oxide fuel cell stack is also disclosed and is formed of repeating cell units, each cell unit having a plurality of fuel cell stack components defining opposed component surfaces, and the seal as described above positioned between the opposed component surfaces. A process is also provided for manufacturing a composite seal for a solid oxide fuel cell, and the process including the steps of: (a) feeding a quantity of spooled fiber tow material through an inert bonding agent to form a coated fiber tow material; (b) winding the coated fiber tow material about a mandrel to form a wound layer of fiber tow material; (c) feeding a quantity of spooled foil material about the wound layer of fiber tow material to form a wound layer of foil material; and (d) repeating steps (a) through (c) until forming a composite seal having desired thickness and width.
    • 提供用于固体氧化物燃料电池的密封件,其中密封件由交替的纤维丝束材料和箔材料的相邻层形成。 还公开了固体氧化物燃料电池堆,并且由重复的电池单元形成,每个电池单元具有限定相对的元件表面的多个燃料电池堆组件,以及定位在相对的组件表面之间的如上所述的密封件。 还提供了一种用于制造用于固体氧化物燃料电池的复合密封件的方法,该方法包括以下步骤:(a)通过惰性粘合剂将一定数量的缠绕纤维丝束材料供给以形成涂覆的纤维束材料; (b)围绕心轴卷绕涂覆的纤维丝束材料以形成纤维束材料的卷绕层; (c)在纤维丝束材料的缠绕层周围供给一定数量的缠绕箔材料以形成箔材料的卷绕层; 和(d)重复步骤(a)至(c),直到形成具有所需厚度和宽度的复合密封件。
    • 9. 发明授权
    • High toughness, high strength sintered silicon nitride
    • 高韧性,高强度烧结氮化硅
    • US5312788A
    • 1994-05-17
    • US76940
    • 1993-06-16
    • Chien-Wei LiJean Yamanis
    • Chien-Wei LiJean Yamanis
    • C04B35/584C04B35/593C04B35/80C04B41/80C04B35/58
    • C04B41/80C04B35/5935C04B35/806
    • A silicon nitride sintered body has a composition consisting essentially of 85 to 94% by weight .beta. silicon nitride, 6 to 15% by weight grain boundary phase consisting essentially of (i) at least two rare earth elements, wherein yttrium is considered a rare earth, and, optionally, strontium which, calculated as SrO, is 0-2 percent by weight of the total body, and (ii) at least two of Si, N, O and C, and an additive consisting essentially of a metal-carbon compound present in the amount of about 0.2 to 3.5% by volume. The additive is substantially homogeneously dispersed within the sintered body. The sintered body has a density at least 95% of theoretical and the ceramic has high strength and high toughness and is especially suited for industrial applications such as components for gas turbine and automotive engines. The sintered body has a microstructure wherein (i) the .beta. silicon nitride grains are acicular and have an average grain width ranging from 0.5 to 1.5 .mu.m, (ii) at least 25% of the grains have width greater than 0.7 .mu.m, and at least 10% of the grains have width greater than 1 .mu.m, and (iii) no more than 5% of grains have width greater than 3.5 .mu.m and apparent aspect ratio greater than 5, with the proviso that the average aspect ratio is at least 1.8.
    • 氮化硅烧结体具有基本上由85至94重量%的β氮化硅,6至15重量%的晶界相组成的组成,其基本上由(i)至少两个稀土元素组成,其中钇被认为是稀土 ,和任选的以SrO计为0-2重量%的锶,和(ii)Si,N,O和C中的至少两个,以及基本上由金属 - 碳组成的添加剂 化合物的存在量为约0.2-3.5%(体积)。 添加剂基本均匀地分散在烧结体内。 烧结体的密度至少为理论值的95%,陶瓷具有高强度和高韧性,特别适用于燃气轮机和汽车发动机的部件等工业应用。 所述烧结体具有以下微结构:(i)所述β型氮化硅晶粒为针状,平均晶粒宽度为0.5〜1.5μm,(ii)所述晶粒的至少25%的宽度大于0.7μm, 至少10%的晶粒具有大于1μm的宽度,和(iii)不超过5%的晶粒宽度大于3.5μm,并且视在长宽比大于5,条件是平均纵横比为 至少1.8。