Low pressure ammonia synthesis utilizing adsorptive enhancement
    2.
    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

    IPC分类号: C01C1/04

    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。

    Catalyst and adsorbant bed configurations suitable for mobile applications
    4.
    发明申请
    Catalyst and adsorbant bed configurations suitable for mobile applications 审中-公开
    适用于移动应用的催化剂和吸附床配置

    公开(公告)号:US20050249645A1

    公开(公告)日:2005-11-10

    申请号:US10839567

    申请日:2004-05-05

    IPC分类号: B01D53/94 F01N3/28 B01D53/34

    摘要: The present invention provides adsorbers with a high spatial and/or mass density of usable adsorbant in configuration suitable for vehicle exhaust systems. One aspect of the invention relates to an adsorber or catalyst having a monolith structure and porous walls. The walls have a void volume of at least about 0.1 exclusive of pores having a diameter less the 1 μm. Another aspect of the invention relates to an adsorber or catalyst having a bed comprising porous pellets fused together to form a cohesive mass. A further aspect of the invention relates to an adsorber or catalyst having a bed comprising coated wire screens. A still further aspect of the invention relates to an adsorber or catalyst having a small number of channels, preferably just one central channel, for heating and cooling.

    摘要翻译: 本发明提供具有高空间和/或密度的吸附剂在适用于车辆排气系统的结构中的吸附剂。 本发明的一个方面涉及具有整料结构和多孔壁的吸附剂或催化剂。 壁的空隙体积至少约为0.1,不包括直径小于1um的孔。 本发明的另一方面涉及一种具有床的吸附器或催化剂,所述床包含多个熔融在一起以形成粘性物质的颗粒。 本发明的另一方面涉及具有包括涂覆的丝网的床的吸附器或催化剂。 本发明的另一方面涉及具有少量通道的吸附器或催化剂,优选仅一个中心通道用于加热和冷却。

    Multiple reactant multiple catalyst selective catalytic reduction for NOx abatement in internal combustion engines
    7.
    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

    IPC分类号: B01D53/56

    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。

    Fluid power accumulator using adsorption
    8.
    发明申请
    Fluid power accumulator using adsorption 失效
    流体动力蓄能器采用吸附

    公开(公告)号:US20050275280A1

    公开(公告)日:2005-12-15

    申请号:US10867251

    申请日:2004-06-14

    摘要: The invention relates to a fluid power accumulator in which the fluid undergoes a state change as the system is pressurized to store energy. A state change can be a phase change, a chemical reaction, or a combination of these. Generally the state change results from the interaction of a compressible fluid contained in the accumulator with another substance, which can be a fluid or a solid. Preferably, the state change includes the physical adsorption of a fluid by a solid adsorbant. The invention can improve the energy storage density of a fluid power accumulator, allow a given energy storage density to be achieved at a lower maximum pressure, facilitate heat transfer and storage within an accumulator, and/or improve accumulator efficiency by storing energy in a form other than thermal energy, such as in the form of chemical energy.

    摘要翻译: 本发明涉及一种流体动力储存器,其中当系统被加压以储存能量时,流体经历状态变化。 状态变化可以是相变,化学反应或它们的组合。 通常,状态变化是由储存器中包含的可压缩流体与可以是流体或固体的另一种物质的相互作用产生的。 优选地,状态变化包括通过固体吸附剂物理吸附流体。 本发明可以提高流体动力蓄能器的储能密度,允许在较低的最大压力下实现给定的储能密度,促进蓄能器内的热传递和储存,和/或通过以下形式存储能量来提高蓄能器的效率 除了热能,比如以化学能的形式。

    Rotary NOx trap
    9.
    发明申请
    Rotary NOx trap 审中-公开
    旋转NOx捕集器

    公开(公告)号:US20060042235A1

    公开(公告)日:2006-03-02

    申请号:US10934260

    申请日:2004-09-02

    申请人: Wayne Kaboord

    发明人: Wayne Kaboord

    IPC分类号: F01N3/00 F01N3/10

    摘要: One aspect of the invention relates to a NOx trapping device for a vehicle exhaust system having a plurality of NOx adsorbers. The device has a mobile framework configured to hold the NOx adsorbers and move them in sequence through a plurality of positions. A manifold channels exhaust to one or more of the NOx adsorber positions. The mobile framework is adapted to move the NOx adsorbers in and out of position to receive the exhaust. The adsorbers can be regenerated while they are not receiving any exhaust. The invention facilitates the use of multiple NOx adsorbers in an exhaust system, particularly the use of more than two adsorbers. The invention avoids complex exhaust valving, which is normally associated with multiple adsorber systems. In one embodiment, treated exhaust and exhaust from an adsorber undergoing regeneration are combined and supplied to an SCR reactor or an oxidation catalyst.

    摘要翻译: 本发明的一个方面涉及一种用于具有多个NOx吸附器的车辆排气系统的NOx捕集装置。 该装置具有被配置为保持NOx吸附器并且通过多个位置依次移动它们的移动框架。 歧管通道排放到一个或多个NOx吸附器位置。 移动框架适于将NOx吸附器移入和移出位置以接收排气。 吸附器可以在不接收任何排气的同时再生。 本发明有助于在排气系统中使用多个NOx吸附器,特别是使用多于两个的吸附器。 本发明避免了复杂的排气阀,其通常与多个吸附器系统相关联。 在一个实施方案中,来自经历再生的吸附器的经处理的排气和排气合并并供应至SCR反应器或氧化催化剂。