Alumina-Coated Metal Structure and Catalyst Structure
    1.
    发明申请
    Alumina-Coated Metal Structure and Catalyst Structure 审中-公开
    氧化铝涂层金属结构和催化剂结构

    公开(公告)号:US20070232482A1

    公开(公告)日:2007-10-04

    申请号:US10566657

    申请日:2004-07-28

    Abstract: A metal substrate is coated with a layer of ceramic, by spraying droplets of a slurry of a ceramic precursor onto the substrate, the substrate being at a temperature between 500° C. and 750° C. The ceramic comprises alumina, and is made macroporous by spraying a mixture of alumina sol and alumina particles with no more than 35% by weight of dispersible alumina. Spraying onto a red-hot surface in this fashion leads to a very marked improvement in adhesion of the resulting ceramic to the metal substrate. A catalytically active material may then be incorporated in the ceramic layer, so as to form a catalyst structure (16).

    Abstract translation: 通过将陶瓷前体的浆料的液滴喷射到基底上,将金属基底涂覆有陶瓷层,该基底处于500℃至750℃之间的温度。陶瓷包括氧化铝,并且被制成大孔 通过喷涂不超过35重量%的可分散氧化铝的氧化铝溶胶和氧化铝颗粒的混合物。 以这种方式喷涂到红热表面上导致所得陶瓷与金属基材的粘合性的显着改善。 然后可以在陶瓷层中引入催化活性材料,以便形成催化剂结构(16)。

    Catalytic reactor
    3.
    发明申请
    Catalytic reactor 失效
    催化反应器

    公开(公告)号:US20050013769A1

    公开(公告)日:2005-01-20

    申请号:US10491782

    申请日:2002-09-12

    Abstract: A catalytic reactor (20) comprises a plurality of sheets (21) defining flow channels (22) between them. Within each flow channel (22) is a foil (24) of corrugated material whose surfaces are coated with catalytic material. Flow channels (22, 22a) for a first gas extend in oblique directions relative to the flow channels (22b) for a second gas. The reactor (20) incorporates header chambers (26, 28) to supply gas mixtures to the flow channels (22), the headers communicating with adjacent channels being separate. The reactor (20) enables different gas mixtures to be supplied to adjacent channels (22), which may be at different pressures, and the corresponding chemical reactions are also different. Where one of the reactions is endothermic while the other reaction is exothermic, heat is transferred through the sheets (21) separating the endothermic reaction. When the catalyst is one set of flow channels becomes spent, it can be replaced by removing a header. The reactor (20) may be used in a compact plant to perform steam/methane reforming, obtaining the necessary heat by catalytic methane combustion, and also for Fisher-Tropsch synthesis, so that the overall process involves conversion of methane to long-chain hydrocarbons.

    Abstract translation: 催化反应器(20)包括在它们之间限定流动通道(22)的多个片材(21)。 在每个流动通道(22)内是波纹材料的箔(24),其表面涂覆有催化材料。 用于第一气体的流动通道(22,22a)相对于用于第二气体的流动通道(22b)在倾斜方向上延伸。 反应器(20)包括集管室(26,28)以将气体混合物供应到流动通道(22),与相邻通道连通的集管是分离的。 反应器(20)使不同的气体混合物能够供应到邻近的通道(22),相邻的通道(22)可能处于不同的压力,相应的化学反应也不同。 其中一个反应是吸热的,而另一个反应是放热的,热量通过分离吸热反应的片(21)转移。 当催化剂是一组流动通道消耗时,可以通过去除集管来代替催化剂。 反应器(20)可用于紧凑型工厂中以进行蒸汽/甲烷重整,通过催化甲烷燃烧获得必要的热量,还可用于费 - 托合成,以使整个方法涉及将甲烷转化成长链烃 。

    Catalytic reactor and process
    5.
    发明申请
    Catalytic reactor and process 有权
    催化反应器和工艺

    公开(公告)号:US20060041029A1

    公开(公告)日:2006-02-23

    申请号:US10536726

    申请日:2003-11-27

    Abstract: Fischer-Tropsch synthesis is performed using a compact catalytic reactor unit (10) defining channels in which is a gas-permeable catalyst structure (16), the channels extending between headers (18). The synthesis occurs in at least two stages, as the reactor unit provides at least two successive channels (14, 14a) for the Fischer-Tropsch synthesis connected by a header, the gas flow velocity through the first channel being sufficiently high that no more than 65% of the carbon monoxide undergoes conversion. The gases are cooled (25) in the header between the two stages, so as to condense water vapour, and then pass through the second channel at a sufficiently high gas flow velocity that no more than 65% of the remaining carbon monoxide undergoes conversion. This lowers the partial pressure of water vapour and so suppresses oxidation of the catalyst.

    Abstract translation: 使用紧密的催化反应器单元(10)进行费 - 托合成,所述催化反应器单元限定通道,其中是透气催化剂结构(16),所述通道在集管(18)之间延伸。 合成发生在至少两个阶段,因为反应器单元为通过集管连接的费 - 托合成提供了至少两个连续的通道(14,14a),通过第一通道的气流速度足够高,不再有 超过65%的一氧化碳转化。 气体在两级之间的集管中冷却(25),以便冷凝水蒸气,然后以足够高的气体流速通过第二通道,其中不超过其余一氧化碳转化的65%。 这降低了水蒸气的分压并因此抑制了催化剂的氧化。

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