Method and apparatus for controlling regeneration temperature in a diesel particulate trap
    2.
    发明授权
    Method and apparatus for controlling regeneration temperature in a diesel particulate trap 失效
    用于控制柴油颗粒捕集器中的再生温度的方法和装置

    公开(公告)号:US07243488B2

    公开(公告)日:2007-07-17

    申请号:US11215487

    申请日:2005-08-30

    IPC分类号: F01N3/00

    摘要: A diesel exhaust gas system includes a diesel particulate filter (DPF), a trap for nitrogen oxides (LNT), a hydrocarbon catalytic reformer for generating reformate, and an air supply. A method for controlling the rate of burn of soot in a DPF limits the oxygen percentage in the exhaust to about 6%. The LNT may be located ahead of the DPF in the exhaust line. Reformate is directed with exhaust through the LNT. The second flow of air cools the exhaust gas and thereby prevents overheating of the DPF substrate. The DPF also may be located ahead of the LNT. Reformate is controllably combusted by the second air flow in the DPF, reducing the oxygen percentage to about 6%, thus limiting the rate at which soot in the DPF can burn and thereby preventing overheating of the DPF substrate.

    摘要翻译: 柴油机废气系统包括柴油微粒过滤器(DPF),氮氧化物捕集器(LNT),用于产生重整产物的烃催化重整器和空气供应。 用于控制DPF中烟灰燃烧速率的方法将废气中的氧气百分比限制在约6%。 LNT可能位于排气管线中的DPF前方。 改装通过LNT引导排气。 第二次空气冷却废气,从而防止DPF基板的过热。 DPF也可能位于LNT之前。 重整物由DPF中的第二空气流可控地燃烧,将氧气百分比降低至约6%,从而限制DPF中的烟灰燃烧的速率,从而防止DPF衬底的过热。

    Exhaust treatment systems and methods for using the same
    6.
    发明申请
    Exhaust treatment systems and methods for using the same 失效
    排气处理系统及其使用方法

    公开(公告)号:US20060075743A1

    公开(公告)日:2006-04-13

    申请号:US11282220

    申请日:2005-11-17

    IPC分类号: F01N3/00

    摘要: In one embodiment, an exhaust treatment system comprises a selective catalytic reduction device, an off-line reformer disposed in selective fluid communication with and upstream of the selective catalytic reduction device, and a plasma reactor disposed downstream of and in fluid communication with the off-line reformer, and disposed upstream of and in fluid communication with the selective catalytic reduction device. The selective catalytic reduction device is capable of storing ammonia and of enabling the reaction of the ammonia with NOx. The reformer is capable of producing a reformate comprising hydrogen and nitrogen. The plasma reactor is capable of producing ammonia from the reformate, and is a thermal plasma reactor or a surface discharge non-thermal plasma reactor.

    摘要翻译: 在一个实施方案中,排气处理系统包括选择性催化还原装置,与选择性催化还原装置选择性流体连通和上游设置的离线重整器,以及设置在离子交换器的下游并与离子交换器流体连通的等离子体反应器, 并且设置在选择性催化还原装置的上游并与其流体连通。 选择性催化还原装置能够储存氨并能够使氨与NOx反应。 重整器能够生产包含氢和氮的重整产物。 等离子体反应器能够从重整产生氨,并且是热等离子体反应器或表面放电非热等离子体反应器。

    Ammonia gas sensors
    9.
    发明授权
    Ammonia gas sensors 有权
    氨气传感器

    公开(公告)号:US07828955B2

    公开(公告)日:2010-11-09

    申请号:US11483448

    申请日:2006-07-10

    IPC分类号: G01N27/407

    摘要: One embodiment of an ammonia gas sensor includes: a reference electrode, an ammonia selective sensing electrode and an electrolyte disposed therebetween. The sensing electrode comprises the reaction product of a main material selected from the group consisting of vanadium, tungsten, molybdenum, vanadium oxides, tungsten oxides, molybdenum oxides, and combinations comprising at least one of the foregoing main materials, and an electrically conducting material selected from the group consisting of electrically conductive metals, electrically conductive metal oxides, and combinations comprising at least one of the foregoing.

    摘要翻译: 氨气传感器的一个实施例包括:参比电极,氨选择性感测电极和设置在其间的电解质。 感测电极包括选自钒,钨,钼,氧化钒,氧化钨,氧化钼以及包含至少一种前述主要材料的组合的主要材料的反应产物和选择的导电材料 来自由导电金属,导电金属氧化物组成的组,以及包含前述的至少一种的组合。

    NOx sensor and methods of using the same
    10.
    发明授权
    NOx sensor and methods of using the same 有权
    NOx传感器及其使用方法

    公开(公告)号:US07294252B2

    公开(公告)日:2007-11-13

    申请号:US11538252

    申请日:2006-10-03

    IPC分类号: G01N27/407

    摘要: Disclosed herein are NOx sensors and methods of using the same. In one embodiment, a method for sensing NOx comprises: contacting a first NOx electrode with the gas, contacting a second NOx electrode with the gas, determining a NO2 emf between the first NOX electrode and a first reference electrode, determining a NOx emf between the second NOx electrode and a second reference electrode, and determining a NO2 concentration and a NO concentration using the NO2 emf and the NOx emf. The first electrode can be at a first temperature of greater than or equal to about 700° C., and the second electrode can be at a second temperature of about 500° C. to about 650° C.

    摘要翻译: 本文公开了NOx传感器及其使用方法。 在一个实施例中,用于感测NOx的方法包括:使第一NOx电极与气体接触,使第二NOx电极与气体接触,确定第一NO x电极和第一参考电极之间的NO 2 电极,确定第二NOx电极和第二参比电极之间的NOx电动势,以及使用NO 2 2 emf和NO x emf确定NO 2浓度和NO浓度 。 第一电极可以处于大于或等于约700℃的第一温度,并且第二电极可以处于约500℃至约650℃的第二温度。