利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

152 条记录 (耗时 0.047 秒)

    Process and apparatus for treating ammonia-containing waste water
    68.
    发明申请
    Process and apparatus for treating ammonia-containing waste water 审中-公开
    用于处理含氨废水的工艺和设备

    公开(公告)号：US20050047981A1

    公开(公告)日：2005-03-03

    申请号：US10343891

    申请日：2001-03-30

    申请人： Hirofumi Kikkawa ,  Yasuyoshi Kato ,  Shigehito Takamoto ,  Takanori Nakamoto

    发明人： Hirofumi Kikkawa ,  Yasuyoshi Kato ,  Shigehito Takamoto ,  Takanori Nakamoto

    IPC分类号： B01D3/38 ,  B01J21/06 ,  B01J23/648 ,  B01J23/652 ,  C01C1/10 ,  C02F1/02 ,  C02F1/20 ,  C01B21/00

    CPC分类号： B01J23/652 ,  B01D3/38 ,  B01J21/063 ,  B01J23/6482 ,  B01J23/6527 ,  C01C1/10 ,  C02F1/02 ,  C02F1/20 ,  C02F2101/16 ,  C02F2209/14 ,  C02F2209/40 ,  Y02P20/52 ,  Y02P20/584

    摘要： Disclosed are methods and apparatuses for treating an ammonia-containing effluent in which the amount of hazardous substances such as NOx formed at the time of starting the operation of the apparatus or even at the time when the concentration of ammonia (NH3) in the gas to be subjected to an NH3 decomposing step (described below) was changed is extremely small; in which method an NH3-containing effluent A and vapor (carrier gas) C are contacted in stripping tower 7 to transfer the NH3 from the effluent to a gas phase, a gas containing the NH3 stripped in the tower is heated with pre-heater 1 and then contacted with catalyst 13 to decompose the NH3 into nitrogen and water, the concentration of the NOx (or N2O) contained in the gas resulted at the NH3 decomposing step is determined, and one or more of parameters (a) the amount of the effluent to be supplied to the stripping step, (b) the concentration of the NH3 contained in the effluent, and (c) the flow rate of the NH3-containing gas contacted with the catalyst (when the N2O concentration was determined, one or more of (e′) the flow rate of the carrier gas, (f′) the amount of a gas such as air to be added to the NH3-containing gas, and (g′) the amount of a part of the gas resulted at the NH3 decomposing step and to be circulated) are adjusted responding to the concentration of the NOx (or N2O).

    摘要翻译： 公开了用于处理含氨废水的方法和装置，其中在开始操作装置时形成的有害物质如NOx形成的量甚至在气体中的氨（NH 3）浓度为 经受N​​H3分解步骤（如下所述）变化极小; 在该方法中，含NH 3的流出物A和蒸汽（载气）C在汽提塔7中接触以将NH 3从流出物转移到气相，含有在塔中汽提的NH 3的气体用预热器1 然后与催化剂13接触以将NH 3分解成氮和水，确定包含在气体中的NO x（或N 2 O）在NH 3分解步骤中的浓度，并且参数（a）中的一个或多个 供应到汽提步骤的流出物，（b）流出物中所含的NH 3的浓度，和（c）与催化剂接触的含NH 3气体的流量（当确定N 2 O浓度时，一个或多个 （e'）载气的流量，（f'）要添加到含NH 3的气体中的诸如空气的气体的量，（g'）得到的一部分气体的量 NH 3分解步骤并循环）根据NOx（或N 2 O）的浓度来调节 ）。

    Sulfur-tolerant catalysts and related precursors and processes
    70.
    发明申请
    Sulfur-tolerant catalysts and related precursors and processes 有权
    耐硫催化剂及相关前体和工艺

    公开(公告)号：US20040166056A1

    公开(公告)日：2004-08-26

    申请号：US10371188

    申请日：2003-02-20

    发明人： Darrell P. Eyman ,  Christopher Brooks

    IPC分类号： H01M008/06 ,  C01B003/26

    CPC分类号： B01J21/066 ,  B01J21/063 ,  B01J23/6482 ,  B01J23/8472 ,  B01J37/0201 ,  B01J37/0207 ,  C01B3/40 ,  C01B2203/00 ,  C01B2203/0233 ,  C01B2203/066 ,  C01B2203/1011 ,  C01B2203/1041 ,  C01B2203/1052 ,  C01B2203/1064 ,  C01B2203/1082 ,  C01B2203/1223 ,  C01B2203/1235 ,  C01B2203/1604 ,  H01M8/0618 ,  Y02P20/52

    摘要： The invention provides active, affordable, durable, and sulfur-tolerant catalysts and related precursors and processes useful in hydrogen production. The catalysts have a wide applicability. For example, in one embodiment, the invention provides sulfur-tolerant catalysts which, when used in a catalytic fuel processor, will facilitate sufficient hydrogen generation within 30 seconds or so of automobile start-up to generate around 50 kW of fuel cell power. Catalysts of the instant invention are made by reducing a catalyst precursor comprising a support phase impregnated with one or more elemental transition metals, wherein: (a) the support phase is formed by dispersion of a monolayer on the surface of a high surface area alumina support; and (b) the monolayer comprises XOnYO2, where (1) XOn is a redox active metal oxide and n is either 1.5, 2, or 2.5 depending on the oxidation number of X, and (2) YO2 is a redox inactive metal oxide. NinullV2O5nullZrO2/Al2O3 catalysts of the instant invention are preferred.

    摘要翻译： 本发明提供了活性的，经济的，耐用的和耐硫的催化剂以及在氢生产中有用的相关前体和方法。 催化剂具有广泛的适用性。 例如，在一个实施方案中，本发明提供耐硫催化剂，其在催化燃料处理器中使用时将有助于在汽车启动的30秒以内产生足够的氢以产生约50kW的燃料电池功率。 本发明的催化剂是通过还原包含浸渍有一种或多种元素过渡金属的载体相的催化剂前体制备的，其中：（a）通过在高表面积氧化铝载体的表面上分散单层形成载体相 ; 和（b）单层包含XOnYO 2，其中（1）XOn为氧化还原活性金属氧化物，n为1.5,2或2.5，这取决于X的氧化数，和（2）YO 2是氧化还原惰性金属氧化物。 本发明的Ni-V2O5-ZrO2 / Al2O3催化剂是优选的。