利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

3 条记录 (耗时 0.017 秒)

    Low pressure ammonia synthesis utilizing adsorptive enhancement
    1.
    发明申请
    Low pressure ammonia synthesis utilizing adsorptive enhancement 审中-公开
    低压氨合成利用吸附增强

    公开(公告)号：US20060039847A1

    公开(公告)日：2006-02-23

    申请号：US10924050

    申请日：2004-08-23

    申请人： Wayne Kaboord ,  Dawn Becher ,  Fred Begale ,  Daniel Fellers ,  Steven Kuznicki

    发明人： Wayne Kaboord ,  Dawn Becher ,  Fred Begale ,  Daniel Fellers ,  Steven Kuznicki

    IPC分类号： C01C1/04

    CPC分类号： B01D15/00 ,  B01J20/186 ,  C01C1/04 ,  C01C1/0458 ,  Y02P20/52

    摘要： One aspect of the invention relates to a process for synthesizing ammonia from hydrogen and nitrogen in which an adsorbant is provided to adsorb ammonia as it is being produced. Adsorption of the product drives the ammonia synthesis reaction and allows the process to be carried out at pressures where the gas phase equilibrium conversion is too low for a conventional system to be practical. The invention is applicable to both small and large scale ammonia synthesis. A small scale ammonia synthesis plant can be a stationary or vehicle-mounted plant used to supply reducing agent for selective catalytic reduction of NOx in diesel exhaust. Ammonia can be desorbed from the adsorbant, extracted from the adsorbant, or stored and transported in its adsorbed state.

    摘要翻译： 本发明的一个方面涉及一种从氢和氮合成氨的方法，其中提供吸附剂来吸收原生的氨。 产物的吸附驱动氨合成反应，并允许该过程在气相平衡转化率过低的压力下进行，对于常规系统而言是实用的。 本发明适用于小型和大型氨合成。 小型氨合成装置可以是用于供应用于选择性催化还原NOx的柴油机废气中的还原剂的固定或车载装置。 氨可从吸附剂中脱附，从吸附剂中提取，或以其吸附状态储存和运输。

    Multiple reactant multiple catalyst selective catalytic reduction for NOx abatement in internal combustion engines
    3.
    发明申请
    Multiple reactant multiple catalyst selective catalytic reduction for NOx abatement in internal combustion engines 审中-公开
    用于内燃机NOx排放的多反应物多催化剂选择性催化还原

    公开(公告)号：US20060112678A1

    公开(公告)日：2006-06-01

    申请号：US10981035

    申请日：2004-11-04

    申请人： Wayne Kaboord ,  Daniel Fellers

    发明人： Wayne Kaboord ,  Daniel Fellers

    IPC分类号： B01D53/56

    CPC分类号： B01D53/944 ,  B01D53/9431 ,  B01D2251/202 ,  B01D2251/204 ,  B01D2257/402 ,  F01N3/0842 ,  F01N3/2066 ,  F01N3/28 ,  F01N3/2882 ,  F01N13/009 ,  F01N13/0093 ,  F01N2240/02 ,  F01N2240/28 ,  F01N2240/30 ,  F01N2570/14 ,  F01N2610/03 ,  F01N2610/04 ,  Y02A50/2325 ,  Y02A50/2344 ,  Y02C20/10 ,  Y02T10/24

    摘要： The invention relates to systems and methods for treating oxygen-rich NOx-containing exhaust. The systems and methods comprise using first and second NOx reducing catalysts. According to one aspect of the invention, the first catalyst reduces NOx in oxygen-rich exhaust primarily through reaction with a first reductant species and the second catalyst reduces NOx in oxygen-rich exhaust primarily through reaction with a second reductant species. Collectively, the two catalysts are substantially more effective than either of the catalysts individually in reducing the concentration of NOx in the exhaust. According to another aspect of the invention, an exhaust system is configured to inject a first reductant species primarily at a first location upstream of the first NOx reducing catalyst, and is configured to inject a second reductant species primarily at a second location downstream of the first NOx reducing catalyst, but upstream of the second NOx reducing catalyst.

    摘要翻译： 本发明涉及用于处理含氧富含NO x x的排气的系统和方法。 该系统和方法包括使用第一和第二NO x还原催化剂。 根据本发明的一个方面，第一催化剂主要通过与第一还原剂物质的反应而减少富氧排气中的NO x，并且第二催化剂减少氧中的NO x 主要是通过与第二还原剂物质的反应而产生的大量废气。 总的来说，两种催化剂在减少排气中的NO x的浓度方面基本上比任一种催化剂更有效。 根据本发明的另一方面，排气系统被配置为主要在第一NO x还原催化剂的上游的第一位置处注入第一还原剂物质，并且被配置为主要注入第二还原剂物质 在第一NO x SO 2还原催化剂的下游的第二位置处，而在第二NO x x还原催化剂的上游。