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    Corrosion resistance of high temperature alloys
    74.
    发明申请
    Corrosion resistance of high temperature alloys 有权
    高温合金的耐腐蚀性

    公开(公告)号：US20020079023A1

    公开(公告)日：2002-06-27

    申请号：US09982769

    申请日：2001-10-22

    Applicant: Haldor Topsoe A/S

    Inventor： Ib Alstrup ,  Ib Chorkendorff

    IPC: C23C008/00

    CPC classification number: C23C26/00

    Abstract: A method for enhancing the protection of high temperature alloys containing iron, nickel and chromium against high temperature corrosion by carburization or metal dusting is achieved by depositing a thin layer of a metal selected from one or more of the noble metals, precious metals, metals from groups IVA, IVB, and group VA, VB of the Periodic Table and mixtures thereof with a thickness in the range of from 0.01 to 10 nullm on the surface to be protected, and annealing the treated surface in an inert atmosphere at a predetermined temperature for a sufficient time to render the treated surface resistant to carburization or metal dusting.

    Abstract translation: 通过沉积选自贵金属，贵金属，贵金属，金属中的一种或多种的金属薄层，可以实现通过渗碳或金属粉化来增强对含有铁，镍和铬的高温合金的保护以防高温腐蚀的方法 IVA族，IVB族和VA族，VB族和它们的混合物，其在待保护表面上的厚度为0.01-10μm，并且在惰性气氛中在预定温度下对经处理的表面退火， 足够的时间使处理后的表面耐渗碳或金属粉尘。

    PROCESS FOR THE INTEGRATED PREPARATION OF AMMONIA AND UREA
    76.
    发明申请
    PROCESS FOR THE INTEGRATED PREPARATION OF AMMONIA AND UREA 有权
    一体化制备氨基酸和尿素的方法

    公开(公告)号：US20020035293A1

    公开(公告)日：2002-03-21

    申请号：US09952678

    申请日：2001-09-14

    Applicant: Haldor Topsoe A/S

    Inventor： Christian Speth

    IPC: C07C273/04

    CPC classification number: C07C273/10 ,  C01B3/025 ,  C01B3/52 ,  C01B2203/0415 ,  C01B2203/0465 ,  C01B2203/047 ,  C01B2203/0475 ,  C01C1/0488 ,  Y02P20/52

    Abstract: Process for the combined preparation of urea and ammonia reactant by steps of providing ammonia synthesis gas containing carbon dioxide and conversion of the synthesis gas to the ammonia reactant, reacting the ammonia reactant with the carbon dioxide in the synthesis gas to ammonium carbamate and to urea product, which process comprises further steps of prior to the conversion of the synthesis gas to the ammonia reactant, (i) washing the synthesis gas with an aqueous solution of the ammonia reactant and forming a solution being rich in ammonium carbamate; (ii) removing excess of ammonia reactant from the washed synthesis gas by washing with water and withdrawing an aqueous solution of ammonia reactant; (iii) purifying the water washed synthesis gas by removing reminding amounts of water and ammonia; and (iv) passing the purified synthesis gas to the conversion of the gas to ammonia reactant.

    Abstract translation: 通过提供含有二氧化碳的氨合成气和将合成气转化为氨反应物的步骤，将氨反应物与合成气中的二氧化碳反应，使氨基甲酸铵和尿素产物 ，该方法包括在将合成气转化为氨反应物之前的另外步骤，（i）用氨反应物的水溶液洗涤合成气并形成富含氨基甲酸铵的溶液; （ii）通过用水洗涤并抽出氨反应物的水溶液从洗涤的合成气中除去过量的氨反应物; （iii）通过除去提醒量的水和氨来净化水洗合成气; 和（iv）使纯化的合成气通过气体转化为氨反应物。

    Solid oxide fuel cell
    78.
    发明申请
    Solid oxide fuel cell 失效
    固体氧化物燃料电池

    公开(公告)号：US20010012576A1

    公开(公告)日：2001-08-09

    申请号：US09776385

    申请日：2001-02-02

    Applicant: Haldor Topsoe A/S

    Inventor： Niels Christiansen

    IPC: H01M008/12

    CPC classification number: H01M8/0625 ,  H01M8/0271 ,  H01M8/1231 ,  H01M2008/1293 ,  H01M2300/0074

    Abstract: Solid oxide fuel cell with a planar support in form of a porous plate structure supporting on one planar surface a layer of electrode active material and with internally elongated gas supply channels formed inside the structure.

    Abstract translation: 具有多孔板结构形式的平面支撑件的固体氧化物燃料电池，其在一个平面表面上支撑一层电极活性材料，并且在该结构内形成内部细长的气体供应通道。

    Process for selective reduction of NOx in exhaust gas
    80.
    发明授权
    Process for selective reduction of NOx in exhaust gas 失效
    选择性还原废气中NOx的方法

    公开(公告)号：US06074619A

    公开(公告)日：2000-06-13

    申请号：US38956

    申请日：1998-03-12

    Applicant: Peter Schoubye

    Inventor： Peter Schoubye

    IPC: B01D53/94 ,  B01J21/04 ,  B01J21/06 ,  B01J21/08 ,  B01J21/10 ,  B01J23/06 ,  B01J23/745 ,  B01J35/02 ,  F01N3/20 ,  F01N3/28 ,  C01B21/00

    CPC classification number: F01N3/2066 ,  B01D53/9431 ,  F01N3/2892 ,  F01N2610/02 ,  Y02T10/24

    Abstract: A process for selective catalytic reduction of NOx in exhaust gases at temperatures of 200-600.degree. C. A spray of droplets containing a reductant is injected into a duct through an atomizing nozzle and into an exhaust gas. The exhaust gas, loaded with the spray droplets, is passed through the spaces between the plates of a series of stacks of parallel plates. The plates of each stack in the series are positioned at an angle relative to the walls of the gas duct and any adjacent stack, forcing the exhaust gas to pass through the stacks in a zig-zag flow pattern. After passing through the last stack, the exhaust gas then passes through a layer of monolithic catalyst for selective reduction of NOx by NH.sub.3 with channels parallel to the walls of the duct. Substantially all the spray droplets impinge on the walls of the plates, and the diameter of the droplets are larger than the critical diameter at which they are caused to touch the walls each time the direction of gas-flow is deflected upon passing through the stacks.

    Abstract translation: 在200-600℃的温度下选择性催化还原废气中的NOx的方法。含有还原剂的液滴喷雾通过雾化喷嘴注入管道并进入废气。 装载有喷雾液滴的废气通过一系列平行板的板之间的空间。 串联中的每个堆叠的板相对于气体管道的壁和任何相邻的堆叠以一定角度定位，迫使排气以锯齿状流动模式通过堆叠。 在通过最后的堆叠之后，废气然后通过一层整体式催化剂，用于通过平行于管道壁的通道的NH 3选择性还原NOx。 基本上所有的喷雾液滴都撞击到板的壁上，并且液滴的直径大于每当通过堆叠时气体流动的方向偏转时使其与壁接触的临界直径。

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