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    SILVER PROMOTED CLOSE-COUPLED NOx ABSORBER
    2.
    发明申请
    SILVER PROMOTED CLOSE-COUPLED NOx ABSORBER 有权
    SILVER PROMOTED紧密耦合的NOx吸收器

    公开(公告)号：US20130294990A1

    公开(公告)日：2013-11-07

    申请号：US13664749

    申请日：2012-10-31

    Applicant: GM Global Technology Operations LLC

    Inventor： CALVIN K. KOCH ,  GONGSHIN QI ,  STEVEN J. SCHMIEG ,  WEI LI

    IPC: B01D53/94

    CPC classification number: B01D53/9477 ,  B01D53/9431 ,  B01D53/944 ,  B01D2255/1021 ,  B01D2255/104 ,  B01D2255/2092 ,  B01D2255/91 ,  B01D2258/012 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/2066 ,  Y02A50/2325

    Abstract: Ag/Al2O3 materials may be packaged in a suitable flow-through reactor, in combination with another material selected as a passive NOx adsorber material (PNA), both the silver material and the adsorber material being close coupled to the exhaust manifold of a diesel engine, and upstream of other catalytic devices, such as a diesel oxidation catalyst and a selective reduction catalyst for NOx. The silver catalyst material uses hydrogen in a cold-start engine exhaust and serves to oxidize NO to NO2 in the relatively low temperature, hydrocarbon-containing, exhaust during a short period following the engine cold start, and to temporarily store NOx during the start-up period. After the flowing exhaust gas stream has heated the PNA and the downstream catalytic devices, the silver yields its nitrogen oxides for conversion to nitrogen by the then-operating devices before NOx is discharged to the atmosphere.

    Abstract translation: Ag / Al 2 O 3材料可以包装在合适的流通反应器中，与被选择为无源NO x吸附剂材料（PNA）的另一种材料组合，银材料和吸附剂材料都紧密耦合到柴油发动机的排气歧管 ，以及其它催化装置的上游，例如柴油氧化催化剂和用于NOx的选择性还原催化剂。 银催化剂材料在冷启动发动机排气中使用氢气，并且用于在发动机冷起动之后的短时间内在相对低温的含烃废气中将NO氧化为NO 2，并且在起动期间临时储存NOx， 上升期 在流动的废气流已经加热PNA和下游催化装置之后，在NOx排放到大气中之前，银产生其氮氧化物以便通过操作装置转化为氮气。

    NITRIC OXIDE OXIDATION OVER SILVER-BASED CATALYSTS
    5.
    发明申请
    NITRIC OXIDE OXIDATION OVER SILVER-BASED CATALYSTS 有权
    基于银的催化剂的氧化氮氧化

    公开(公告)号：US20130294989A1

    公开(公告)日：2013-11-07

    申请号：US13664486

    申请日：2012-10-31

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： CALVIN K. KOCH ,  GONGSHIN QI ,  STEVEN J. SCHMIEG ,  WEI LI

    IPC: B01D53/94 ,  F01N3/20

    CPC classification number: B01D53/9477 ,  B01D53/9431 ,  B01D53/944 ,  B01D2255/1021 ,  B01D2255/104 ,  B01D2255/2092 ,  B01D2255/91 ,  B01D2258/012 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/2066 ,  Y02A50/2325

    Abstract: Ag/Al2O3 materials may be packaged in a suitable flow-through reactor, close coupled to the exhaust manifold of a diesel engine, and upstream of other exhaust gas treatment devices, such as a diesel oxidation catalyst and a selective reduction catalyst for NOx. The silver/alumina catalyst material uses hydrogen in a cold-start engine exhaust and serves to oxidize NO to NO2 in the relatively low temperature, hydrocarbon-containing, exhaust during a short period following the engine cold start, and to temporarily store NOx during the start-up period. After the exhaust has heated downstream catalytic devices, the silver yields its nitrogen oxides for conversion to nitrogen by the then-operating devices before NOx is discharged to the atmosphere.

    Abstract translation: Ag / Al2O3材料可以包装在合适的流通反应器中，紧密耦合到柴油发动机的排气歧管，以及其它废气处理装置（例如柴油氧化催化剂和用于NOx的选择性还原催化剂）的上游。 银/氧化铝催化剂材料在冷启动发动机排气中使用氢气，并且用于在发动机冷起动之后的短时间内在相对低温的含烃废气中将NO氧化为NO 2，并在 启动期。 在排气已经加热下游催化装置之后，在NOx排放到大气中之前，银产生其氮氧化物以便通过操作装置转化为氮气。

    NOx SENSOR CALIBRATION AND APPLICATION IN LEAN NOx TRAP AFTERTREAT SYSTEMS
    7.
    发明申请
    NOx SENSOR CALIBRATION AND APPLICATION IN LEAN NOx TRAP AFTERTREAT SYSTEMS 有权
    氮氧化物传感器校准和应用在精益氮氧化物捕集系统中的应用

    公开(公告)号：US20160123945A1

    公开(公告)日：2016-05-05

    申请号：US14527412

    申请日：2014-10-29

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： GONGSHIN QI ,  KEVIN L. PERRY

    IPC: G01N33/00 ,  B01D53/94

    CPC classification number: G01N33/0037 ,  B01D53/30 ,  B01D53/9431 ,  B01D53/9495 ,  B01D2257/404 ,  B01D2258/018 ,  F01N3/0842 ,  F01N9/00 ,  F01N2560/026 ,  F01N2560/14 ,  Y02A50/245 ,  Y02T10/24 ,  Y02T10/47

    Abstract: An aftertreatment system utilizes chemical reactions to treat an exhaust gas flow. A system for aftertreatment of the exhaust gas flow includes a NOx sensor configured to monitor within the exhaust gas flow one of a lambda value and a NOx concentration value and a computerized processor device configured to calibrate the monitored value for presence of one of NH3, H2, and hydrocarbons. In one embodiment, the system further includes a pair of NOx sensors, each monitoring both a lambda value and a NOx concentration value. In another embodiment, the system controls the aftertreatment based upon the calibrated values.

    Abstract translation: 后处理系统利用化学反应来处理废气流。 用于废气流的后处理的系统包括：NOx传感器，被配置为在排气流中监测λ值和NOx浓度值之一;以及计算机化处理器装置，被配置为校准监测值以存在NH 3，H 2 ，和碳氢化合物。 在一个实施例中，系统还包括一对NOx传感器，每一个都监测λ值和NOx浓度值。 在另一个实施例中，系统基于校准值来控制后处理。

    SYNTHESIS OF Cu/SAPO-34 WITH VARIABLE COPPER LOADINGS
    9.
    发明申请
    SYNTHESIS OF Cu/SAPO-34 WITH VARIABLE COPPER LOADINGS 有权
    Cu / SAPO-34与可变铜负载的合成

    公开(公告)号：US20140161718A1

    公开(公告)日：2014-06-12

    申请号：US13709137

    申请日：2012-12-10

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： GONGSHIN QI ,  WEI LI ,  XIANGJU MENG ,  FENGSHOU XIAO

    IPC: B01J29/85

    CPC classification number: B01J29/85 ,  B01D53/9418 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2258/012 ,  B01J35/002 ,  B01J2229/183 ,  C01B39/54 ,  Y02A50/2325 ,  Y02T10/24

    Abstract: A Cu-amine complex of hydrated copper sulfate and ethylene diamine or an oligomer of ethylene diamine is employed in a direct (one-pot) synthesis of a copper-cation containing silicoaluminophosphate (SAPO) zeolite material having the Cu/SAPO-34 structure. The copper-amine complex is included in an aqueous gel of precursors of the SiO2, Al2O3, and P2O5 constituents, which are mixed, aged, and thermally treated to form the desired Cu/SAPO-34 structure. The synthesized Cu/SAPO-34 material is demonstrated to be an effective catalyst material in conversion of nitric oxide to nitrogen (using ammonia as a reductant) in synthetic exhaust streams characteristic of diesel engine and other lean-burn vehicle engine exhaust streams.

    Abstract translation: 在具有Cu / SAPO-34结构的含铜阳离子的硅铝磷酸盐（SAPO）沸石材料的直接（一锅）合成中，使用水合硫酸铜和乙二胺或乙二胺的低聚物的Cu-胺络合物。 铜 - 胺络合物包含在SiO 2，Al 2 O 3和P 2 O 5组分的前体的水性凝胶中，其被混合，老化和热处理以形成所需的Cu / SAPO-34结构。 合成的Cu / SAPO-34材料被证明是在柴油发动机和其他贫燃汽车发动机排气流特征的合成排气流中将一氧化氮转化为氮气（使用氨作为还原剂）的有效催化剂材料。

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