Exhaust treatment systems and methods for using the same
    1.
    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。

    Engine exhaust emission control system providing on-board ammonia generation
    2.
    发明申请
    Engine exhaust emission control system providing on-board ammonia generation 失效
    发动机废气排放控制系统提供车载氨生成

    公开(公告)号:US20070271908A1

    公开(公告)日:2007-11-29

    申请号:US11440930

    申请日:2006-05-25

    IPC分类号: F01N3/00 F01N3/10

    摘要: An exhaust emission control system that provides on-board ammonia generation includes a valve disposed upstream of the LNT and SCR catalyst that operates to selectively control the flow of engine exhaust gas to an LNT and/or an SCR catalyst; while reformate fuel is being conveyed from a reformer to the LNT, the valve operates to cause the exhaust gas to bypass the LNT and flow directly to the SCR catalyst. The exhaust emission control system further includes a controller provided with an algorithm that monitors engine operating conditions and exhaust gas conditions, estimates the cumulative amount of exhaust gas created by the engine and the amount of NOx stored in the LNT, and calculates the amount of NOx required to be converted to NH3.

    摘要翻译: 提供车载氨生成的废气排放控制系统包括设置在LNT和SCR催化剂的上游的阀,其操作以选择性地控制发动机排气到LNT和/或SCR催化剂的流动; 在将重整燃料从重整器输送到LNT的同时,阀门操作以使废气绕过LNT并直接流向SCR催化剂。 废气排放控制系统还包括控制器,该控制器具有监视发动机运转状态和废气条件的算法,估计由发动机产生的排气的累积量和存储在LNT中的NOx的量,并计算NOx的量 需要转化为NH 3。

    System and method for directing fluid flow
    3.
    发明申请
    System and method for directing fluid flow 失效
    引导流体流动的系统和方法

    公开(公告)号:US20070022744A1

    公开(公告)日:2007-02-01

    申请号:US11193661

    申请日:2005-07-29

    IPC分类号: F01N3/00 F01N3/10

    摘要: In one embodiment, a flow switch can comprise: a deflector having a diverging upstream portion; an aperture located in a downstream portion of the deflector; and a divider disposed downstream of the deflector. The deflector can be capable of diverting a fluid stream that contacts the upstream portion, around the deflector. The aperture can be capable of allowing a flow of a displacing fluid such that the displacing fluid can inhibit the diverted fluid stream from converging to pass through the divider. The divider can be capable of allowing a flow of the displacing fluid therethrough.

    摘要翻译: 在一个实施例中,流量开关可以包括:具有发散的上游部分的偏转器; 位于所述偏转器的下游部分中的孔; 以及设置在偏转器下游的分隔件。 偏转器能够转向在偏转器周围接触上游部分的流体流。 孔口能够允许位移流体的流动,使得位移流体可以阻止转向的流体流汇合以通过分隔器。 分隔器能够允许排出流体流过其中。

    Surface discharge non-thermal plasma reactor and method
    7.
    发明申请
    Surface discharge non-thermal plasma reactor and method 审中-公开
    表面放电非热等离子体反应器及方法

    公开(公告)号:US20050079112A1

    公开(公告)日:2005-04-14

    申请号:US10682264

    申请日:2003-10-09

    申请人: Bob Li Mark Hemingway

    发明人: Bob Li Mark Hemingway

    摘要: A surface discharge non-thermal plasma reactor includes a plurality of surface discharge reactor elements arranged in a stack and having a surface discharge gap formed between adjacent pairs of elements. Individual surface discharge elements include a dielectric substrate having disposed thereon first and second polarity surface discharge electrodes. Surface discharge electrode patterns and substrate configurations are provided to selectively control the volume of nitric oxide (NO) produced from a nitrogen-containing gas stream being treated in the reactor. In a preferred embodiment, surface discharge electrode and dielectric substrate configurations are arranged to maximize the production of NO. The surface discharge electrodes and substrates are combined and connected to a power supply to form various embodiments such as reactor stacks having a plurality of positive surface discharge gaps, reactor stacks having a plurality of negative surface discharge gaps, and reactor stacks having a plurality of alternating positive and negative surface discharge gaps.

    摘要翻译: 表面放电非热等离子体反应器包括以堆叠布置的多个表面放电反应器元件,并且在相邻的元件对之间形成表面放电间隙。 各个表面放电元件包括​​其上设置有第一和第二极性表面放电电极的电介质基板。 提供表面放电电极图案和衬底结构以选择性地控制由在反应器中处理的含氮气流产生的一氧化氮(NO)的体积。 在一个优选实施例中,布置了表面放电电极和电介质基板结构以使NO的产生最大化。 表面放电电极和基板被组合并连接到电源以形成各种实施例,例如具有多个正表面放电间隙的反应堆堆叠,具有多个负表面放电间隙的反应堆堆叠,以及具有多个交替 正,负表面放电间隙。

    Alkali metal/alkaline earth lean NOx catalyst
    8.
    发明授权
    Alkali metal/alkaline earth lean NOx catalyst 失效
    碱金属/碱土稀土氧化物催化剂

    公开(公告)号:US06624113B2

    公开(公告)日:2003-09-23

    申请号:US09805677

    申请日:2001-03-13

    IPC分类号: B01J2302

    摘要: One embodiment of a non-precious metal catalyst for treating an exhaust gas stream comprises an alkali metal oxide component comprising lithium oxide, in combination with an alkaline earth support component, wherein the alkaline earth support component is an alkaline earth zeolite catalyst, an alkaline earth alumina catalyst, or a mixture thereof. Another embodiment of a non-precious metal catalyst for treating an exhaust gas stream comprises a substrate supporting a coating having more than about 6 weight percent of a lithium oxide component in combination with less than about 49 weight percent of an barium zeolite catalyst component and less than about 42 weight percent of a barium alumina catalyst component and not more than about 7 weight percent of a ceramic oxide binder.

    摘要翻译: 用于处理废气流的非贵金属催化剂的一个实施方案包括与碱土金属载体组分组合的包含氧化锂的碱金属氧化物组分,其中碱土金属载体组分是碱土金属沸石催化剂,碱土金属 氧化铝催化剂或其混合物。 用于处理废气流的非贵金属催化剂的另一个实施方案包括支撑具有大于约6重量%的氧化锂组分与少于约49重量%的钡沸石催化剂组分的少于约6重量% 约42重量%的钡氧化铝催化剂组分和不超过约7重量%的陶瓷氧化物粘合剂。