EXHAUST GAS PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE
    3.
    发明公开
    EXHAUST GAS PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE 审中-公开
    用于内燃机的排气净化装置

    公开(公告)号:EP2826968A1

    公开(公告)日:2015-01-21

    申请号:EP12856586.8

    申请日:2012-03-14

    IPC分类号: F01N3/023

    摘要: While the amount of PM building up in a particulate filter (DPF) is increasing (until reaching a DPF regeneration start determination value Thpms), one or both of an EGR amount reduction control in which an EGR amount to be recirculated into an air intake system is reduced so that the amount of NOx in exhaust gas increases, and a NOx release control in which a NOx storage catalyst is caused to release NOx, are executed to increase the amount of NO 2 supplied to the particulate filter, whereby the PM buildup rate of the particulate filter is reduced, and therefore, the regeneration interval of the DPF is increased.

    摘要翻译: 在颗粒过滤器(DPF)中堆积的PM的量增加(直至达到DPF再生开始判定值Thpms为止)的同时,执行EGR量减少控制中的一个或两个,在该EGR量减小控制中,要再循环到进气系统 以使排气中的NOx量增加的方式进行减少,使NO X吸留催化剂释放NO X的NO X释放控制被执行,从而增加供给至微粒过滤器的NO 2量,由此PM堆积率 颗粒过滤器减少,因此DPF的再生间隔增加。

    DIESEL PARTICULATE FILTER CATALYST WITH LOW NO2 EMISSIONS
    5.
    发明公开
    DIESEL PARTICULATE FILTER CATALYST WITH LOW NO2 EMISSIONS 有权
    KATALYSATORFÜREINEN DIESELPARTIKELFILTER MIT GERINGEN NO2 EMISSIONEN

    公开(公告)号:EP1837076A1

    公开(公告)日:2007-09-26

    申请号:EP06115850.7

    申请日:2006-06-22

    摘要: The invention refers to a catalyst for assisting solid particulate matter (soot) combustion, in particular for the catalytic coating of a Diesel particulate filter (DPF), having a platinum group metal (PGM) component and a metal oxide component. The metal oxide component can be CuO-La 2 CuO 4 , and the PGM component can be Pt, Pt-Pd or Pd. This catalytic composition is allowing to decrease NO 2 emissions during regeneration of catalyzed DPF while showing comparable or even better activity in soot oxidation regarding reference state-of- the-art CDPFs having higher/comparable PGM loading. The addition of cobalt oxide or cobalt and iron oxides to this formulation further decreases NO 2 emission to the same/lower level than for non-catalyzed or fuel-additive DPFs while still keeping the high activity in soot oxidation. The new catalysts revealed high stability against deactivation during the most severe regenerations.

    摘要翻译: 本发明涉及一种用于辅助固体颗粒物(烟灰)燃烧的催化剂,特别是用于具有铂族金属(PGM)组分和金属氧化物组分的柴油微粒过滤器(DPF)的催化涂层。 金属氧化物组分可以是CuO-La 2 CuO 4,PGM组分可以是Pt,Pt-Pd或Pd。 该催化剂组合物允许在催化DPF的再生期间减少NO 2排放,同时在具有较高/可比的PGM负载的参考现有技术CDPF的烟灰氧化中显示出相当或甚至更好的活性。 向该制剂中加入氧化钴或钴和氧化铁进一步将NO 2排放降低到与未催化或燃料添加剂DPF相同/较低的水平,同时仍保持烟灰氧化的高活性。 新催化剂在最严重的再生过程中表现出对失活的高稳定性。

    Method for removing nitrogen dioxide in the exhaust gas from a stationary combustion source
    7.
    发明公开
    Method for removing nitrogen dioxide in the exhaust gas from a stationary combustion source 审中-公开
    一种用于固定燃烧系统的废气中除去二氧化氮过程

    公开(公告)号:EP1470851A1

    公开(公告)日:2004-10-27

    申请号:EP04009798.2

    申请日:2004-04-26

    申请人: Kocat Inc.

    IPC分类号: B01D53/56 B01D53/79 B01D53/86

    摘要: Disclosed are an apparatus and a method for treating exhaust gas. The apparatus includes a pipe (2) for providing a flow path of the exhaust gas containing nitrogen dioxide from a stationary source combustion process using gases as a fuel. One or more nozzles (4) are installed in the pipe (2), which can spray air and a reducing or an oxidizing agent to the exhaust gas flowing in the pipe (2). Additionally, a storage tank (6) is installed to store the reducing or oxidizing agent therein. Furthermore, an injection pump (8) is connected to the storage tank (6) and nozzle (4) at a position between the storage tank (6) and nozzle (4) to feed the reducing or oxidizing agent from the storage tank (6) to the nozzle (4), and an air pump (10) is connected to the nozzle (4) to feed the air into the pipe (2).

    摘要翻译: 一种装置,包括:提供从固定源燃烧过程含二氧化氮的废气的流路的配管(2)。 喷嘴(4)安装在(2)到喷射空气和还原剂或氧化剂到流过废气(2)。 该装置包括一个储存罐(6)以存储所述还原或氧化剂,喷射泵(8)之间(6)和(4)喂还原或氧化剂,并且在空气泵(10)到进料空气进 (2)。

    Apparatus and method for purifying exhaust gas in an internal combustion engine
    10.
    发明公开
    Apparatus and method for purifying exhaust gas in an internal combustion engine 失效
    一种用于内燃发动机的排气净化的方法和装置

    公开(公告)号:EP0828068A3

    公开(公告)日:1999-09-01

    申请号:EP97115538.7

    申请日:1997-09-08

    IPC分类号: F02D41/14 F02D33/02 F02D13/02

    摘要: An apparatus for, and a method of, purifying exhaust gas emitted from an internal combustion engine reduces fuel consumption under a lean operating condition and generates high torque under a rich operating condition without deteriorating the cleanness of exhaust gas and the driveability of the engine. The apparatus and method improve the durability of a variable valve timing mechanism of the engine. The engine operation involves lean and rich operating conditions. The variable valve timing mechanism (92) of the apparatus changes the open and close timing of at least one of intake valve (24) and exhaust valve (26) of the engine. The apparatus further has a catalytic converter (38) in an exhaust system, to occlude NOx under the lean operating condition and discharge and reduce the occluded NOx under the rich operating condition. The apparatus also has a prohibition unit (70) for prohibiting the variable valve timing mechanism (92) from changing the valve open and close timing of the valves when the air-fuel ratio of the engine is changed from lean to rich to discharge and reduce the occluded NOx.