SYSTEM AND METHOD FOR INJECTING AMMONIA INTO AN EXHAUST GAS STREAM
    2.
    发明申请
    SYSTEM AND METHOD FOR INJECTING AMMONIA INTO AN EXHAUST GAS STREAM 有权
    将氨气注入排气流的系统和方法

    公开(公告)号:US20130171050A1

    公开(公告)日:2013-07-04

    申请号:US13702069

    申请日:2010-06-04

    IPC分类号: B01D53/94

    摘要: A method for injecting ammonia into an exhaust gas stream downstream of a diesel engine includes providing an exhaust gas passageway (11) from the diesel engine to an ambient (14). The exhaust gas passageway (11) includes an NOx Slip Catalyst (NSC) 20 downstream of an NOx Particulate Filter (NPF) 18. The method includes emitting exhaust gas (EG) through the exhaust gas passageway (11), and selectively injecting ammonia (NH3) upstream of the NPF 18, upstream of the NSC (20), both upstream of the NPF and the NSC, or not injecting ammonia, depending on the temperature of the exhaust gas at the NPF and at the NSC.

    摘要翻译: 将柴油喷射到柴油发动机下游的废气流中的方法包括从柴油机向环境(14)提供废气通道(11)。 废气通道(11)包括在NOx颗粒过滤器(NPF)18下游的NOx滑动催化剂(NSC)20。该方法包括通过废气通道(11)排放废气(EG),并选择性地将氨 NH3)在NPF 18上游,NSC(20)上游,NPF和NSC两个上游,或不注入氨,取决于NPF和NSC处的废气温度。

    System and method for injecting ammonia into an exhaust gas stream
    3.
    发明授权
    System and method for injecting ammonia into an exhaust gas stream 有权
    将氨注入废气流的系统和方法

    公开(公告)号:US08551432B2

    公开(公告)日:2013-10-08

    申请号:US13702069

    申请日:2010-06-04

    IPC分类号: B01D53/94 F01N3/035 F01N3/18

    摘要: A method for injecting ammonia into an exhaust gas stream downstream of a diesel engine includes providing an exhaust gas passageway (11) from the diesel engine to an ambient (14). The exhaust gas passageway (11) includes an NOx Slip Catalyst (NSC) 20 downstream of an NOx Particulate Filter (NPF) 18. The method includes emitting exhaust gas (EG) through the exhaust gas passageway (11), and selectively injecting ammonia (NH3) upstream of the NPF 18, upstream of the NSC (20), both upstream of the NPF and the NSC, or not injecting ammonia, depending on the temperature of the exhaust gas at the NPF and at the NSC.

    摘要翻译: 将柴油喷射到柴油发动机下游的废气流中的方法包括从柴油机向环境(14)提供废气通道(11)。 废气通道(11)包括在NOx颗粒过滤器(NPF)18下游的NOx滑动催化剂(NSC)20。该方法包括通过废气通道(11)排放废气(EG),并选择性地将氨 NH3)在NPF 18上游,NSC(20)上游,NPF和NSC两个上游,或不注入氨,取决于NPF和NSC处的废气温度。

    CATALYTIC BURNER SYSTEM FOR DPF REGENERATION
    4.
    发明申请
    CATALYTIC BURNER SYSTEM FOR DPF REGENERATION 审中-公开
    用于DPF再生的催化燃烧器系统

    公开(公告)号:US20140208720A1

    公开(公告)日:2014-07-31

    申请号:US14342461

    申请日:2011-09-02

    IPC分类号: F01N3/023

    摘要: A system and method of effective regeneration of a diesel particulate filter used in the exhaust system of a diesel engine during low engine operating temperatures, is disclosed. Generally speaking, a catalytic burner system and method used in filter regeneration on a diesel engine comprises a burner diesel oxidation catalyst (BDOC) coupled to an exhaust flow of the diesel engine, a mixer fluidly coupled to the BDOC, a diesel oxidation catalyst (DOC) fluidly coupled to the mixer, and a diesel particulate filter (DPF) fluidly coupled to the DOC, wherein the BDOC directs the exhaust flow through the mixer, the DOC and the DPF during a regeneration cycle of the DPF under low engine temperature operating conditions.

    摘要翻译: 公开了一种在低发动机工作温度下用于柴油发动机的排气系统中的柴油机微粒过滤器的有效再生系统和方法。 一般来说,用于柴油发动机过滤器再生的催化燃烧器系统和方法包括与柴油发动机的排气流耦合的燃烧器柴油氧化催化剂(BDOC),与BDOC流体耦合的混合器,柴油氧化催化剂 )和流体耦合到DOC的柴油机微粒过滤器(DPF),其中BDOC在低发动机温度操作条件下在DPF的再生循环期间引导废气流通过混合器,DOC和DPF 。

    Process and apparatus for oxidizing components of a feed gas mixture in
a heat regenerative reactor
    5.
    发明授权
    Process and apparatus for oxidizing components of a feed gas mixture in a heat regenerative reactor 失效
    用于氧化热再生反应器中的进料气体混合物的组分的方法和装置

    公开(公告)号:US5823770A

    公开(公告)日:1998-10-20

    申请号:US806914

    申请日:1997-02-26

    IPC分类号: F27D17/00

    CPC分类号: F27D17/008

    摘要: A process and apparatus for oxidizing components of a feed gas mixture in a heat regenerative reactor are provided. The heat regenerative reactor comprises a vessel having a two ends, the interior of which defines an unfired heat exchange/reaction zone containing a gas-permeable bed comprising heat exchange material in which the components of the feed gas mixture are oxidized. A gas handling system selectively introduces the feed gas mixture into one end of the vessel and discharges reacted gas through the other end of the vessel such that the direction of gas flow through the vessel may be reversed. At the time of flow reversal, a bypass system introduces the feed gas mixture into the vessel at a point intermediate the two ends of the vessel so that the feed gas mixture bypasses a portion of the gas-permeable bed. During bypass, a purging system purges unreacted feed gas mixture from the heat exchange/reaction zone. The process and apparatus described herein provides for continuous processing of the feed gas mixture while avoiding the discharge of unreacted feed gas at the time of flow reversal.

    摘要翻译: 提供了用于氧化热再生反应器中的进料气体混合物的组分氧化的方法和装置。 热再生反应器包括容器,其具有两端,其内部限定未燃烧的热交换/反应区,该热交换/反应区含有包含热交换材料的透气床,其中进料气体混合物的组分被氧化。 气体处理系统选择性地将进料气体混合物引入容器的一端,并将反应后的气体排出容器的另一端,使得气体流过容器的方向可以颠倒。 在流动反转时,旁路系统将进料气体混合物在容器的两端的中间点处引入容器中,使得进料气体混合物绕过透气床的一部分。 在旁路期间,清洗系统从热交换/反应区清除未反应的进料气体混合物。 本文所述的方法和装置提供进料气体混合物的连续处理,同时避免在流动反转时排出未反应的进料气体。