专利检索 cpc:"B01D2255/9045" 第 1 页

1.

发明申请
METHOD AND A DEVICE FOR REMOVING NITROGEN OXIDES AND SULPHUR TRIOXIDE FROM A PROCESS GAS 审中-公开
标题翻译：从工艺气体中去除氮氧化物和三氧化硫的方法和装置

公开(公告)号：US20150030508A1

公开(公告)日：2015-01-29

申请号：US14503767

申请日：2014-10-01

申请人： ALSTOM Technology Ltd

发明人： John BUSCHMANN , Lawrence Joseph Czarnecki , Mou Jian , Frederic Zenon Kozak

IPC分类号： B01D53/86

CPC分类号： B01D53/8631 , B01D53/505 , B01D53/77 , B01D53/8637 , B01D53/96 , B01D2251/2062 , B01D2251/2067 , B01D2251/404 , B01D2251/604 , B01D2255/20707 , B01D2255/20776 , B01D2255/9045 , B01D2255/9207 , B01D2259/80 , B01J23/92 , B03C3/017 , F23J15/006 , F23J15/04 , F23J2215/10 , F23J2215/20 , F23J2217/102 , F23J2219/10

摘要： A catalytic reactor (16) is provided for purposes of effecting therewith the removal of nitrogen oxides from a process gas (F) that includes at least two catalyst bed segments (48, 50, 52), each of which is provided with a closing device (60, 62, 64). The catalytic reactor (16) is operative for causing said process gas (F) to flow through a first catalyst bed segment (48). Said process gas (F) is at a first temperature at which the sulphur trioxide that is entrained in said hot process gas is at least partially precipitated out on to the catalytic material that said first catalyst bed segment (48) embodies. Periodically said closing device (60) is operated in order to thereby isolate said first bed segment (48) from the flow therethrough of said hot process gas (F). A regeneration system (34, 36, 38) is also provided that is operative for purposes of causing a regenerating gas to flow through the first bed segment (48). In addition, a sulphur trioxide removal device (20) is provided, which is separate from said catalytic reactor (16), and which is operative for purposes of effecting therewith the removal of the sulphur trioxide from said regenerating gas.

摘要翻译： 提供了一种催化反应器（16），用于实现从包括至少两个催化剂床段（48,50,52）的工艺气体（F）中除去氮氧化物，每个催化剂床段（48,50,52）设置有闭合装置（60,62,64）。催化反应器（16）用于使所述工艺气体（F）流过第一催化剂床段（48）。所述工艺气体（F）处于被夹带在所述热处理气体中的三氧化硫至少部分地沉淀到所述第一催化剂床段（48）所体现的催化材料上的第一温度。周期性地操作所述关闭装置（60），以便使所述第一床段（48）与所述热处理气体（F）中的流动隔开。还提供再生系统（34,36,38），其用于使再生气体流过第一床段（48）。另外，提供了与所述催化反应器（16）分开的三氧化硫去除装置（20），其用于从其再生气体中除去三氧化硫的目的。

2.

发明申请
Method for Controlling Exhaust Gas Purification Device 失效
标题翻译：排气净化装置的控制方法

公开(公告)号：US20110099980A1

公开(公告)日：2011-05-05

申请号：US12920523

申请日：2009-03-13

申请人： Taisuke Ono

发明人： Taisuke Ono

IPC分类号： F01N9/00

CPC分类号： B01D53/9454 , B01D53/9495 , B01D2251/11 , B01D2251/208 , B01D2255/9045 , B01D2255/91 , F01N3/0871 , F01N3/0878 , F01N13/011 , F01N2240/14 , F01N2240/18 , F01N2240/36 , F01N2410/04 , F01N2410/12 , F01N2610/03 , Y02T10/20 , Y02T10/22

摘要： Disclosed is a method for controlling an exhaust gas purification device, wherein the regeneration operation includes main regeneration operation for detaching the nitrogen oxides adsorbed onto the nitrogen oxide adsorbing material, the method comprising: operating the first combustion device and the second combustion device while the exhaust gas is prevented from flowing into the branch exhaust passage subjected to the regeneration operation by the switching of a changeover valve during the regeneration operation; and decreasing the flow rate of the first mixture gas as the stage of the main regeneration operation advances.

摘要翻译： 本发明公开了一种废气净化装置的控制方法，其特征在于，所述再生动作包括用于分离吸附在所述氮氧化物吸附材料上的氮氧化物的主再生动作，所述方法包括：在排气中操作所述第一燃烧装置和所述第二燃烧装置通过在再生运转中切换切换阀，防止气体流入经受再生运转的分支排气通路; 并且随着主再生操作的阶段的进行，降低第一混合气体的流量。

3.

发明申请
GASOLINE ENGINE EMISSIONS TREATMENT SYSTEMS HAVING PARTICULATE TRAPS 有权
标题翻译：具有颗粒物的汽油发动机排放处理系统

公开(公告)号：US20090193796A1

公开(公告)日：2009-08-06

申请号：US12365182

申请日：2009-02-04

申请人： Junmei Wei , Knut Wassermann , Yeujin Li

发明人： Junmei Wei , Knut Wassermann , Yeujin Li

IPC分类号： F01N3/035

CPC分类号： F01N3/0814 , B01D53/927 , B01D53/9418 , B01D53/9422 , B01D53/9445 , B01D53/9477 , B01D2251/2067 , B01D2255/1023 , B01D2255/1025 , B01D2255/9045 , B01D2255/908 , B01D2258/012 , F01N3/033 , F01N3/0821 , F01N3/2066 , F01N13/009 , F01N13/0097 , F01N13/011 , F01N2250/02 , F01N2250/12 , F01N2250/14 , F01N2570/10 , F01N2570/12 , F01N2570/14 , Y02A50/2324 , Y02A50/2325 , Y02A50/2341 , Y02A50/2344 , Y02T10/22 , Y02T10/24

摘要： Provided are exhaust systems and components suitable for use in conjunction with gasoline direct injection (GDI) engines to capture particulates in addition to reducing gaseous emission such as hydrocarbons, nitrogen oxides, and carbon monoxides. Exhaust treatment systems comprising a three-way conversion (TWC) catalyst located on a particulate trap are provided. An exemplary particulate trap is a soot filter. Additional treatment components can be added downstream of the particulate trap, including NOx traps and SCR catalysts. The TWC catalyst can be coated on both the inlet side and the outlet side of the particulate trap. Alternatively, an oxidation catalyst can be deposited on a particulate trap. Methods of making and using the same are also provided.

摘要翻译： 提供了适用于与汽油直喷（GDI）发动机结合使用的排气系统和部件，除了还原气体排放物之外还捕获微粒，如碳氢化合物，氮氧化物和一氧化碳。提供了包括位于颗粒捕集器上的三向转换（TWC）催化剂的排气处理系统。示例性的颗粒捕集器是烟尘过滤器。附加的处理组分可以添加到颗粒捕集器的下游，包括NOx捕集器和SCR催化剂。 TWC催化剂可以涂覆在颗粒捕集器的入口侧和出口侧。或者，氧化催化剂可以沉积在颗粒捕集器上。还提供了制备和使用它们的方法。

4.

发明授权
Exhaust gas aftertreatment system 有权

公开(公告)号：US11698019B2

公开(公告)日：2023-07-11

申请号：US17242143

申请日：2021-04-27

申请人： Liebherr-Components Colmar SAS

发明人： Salvatore Collura

IPC分类号： F01N13/00 , B01D53/94 , F01N3/20 , F01N3/28

CPC分类号： F01N13/011 , B01D53/944 , B01D53/9431 , B01D53/9495 , F01N3/2013 , F01N3/2066 , F01N3/2892 , B01D2255/9045 , F01N2610/02

摘要： The present invention shows an exhaust gas aftertreatment system comprising at least a first route and a second route arranged in parallel in an exhaust gas stream, wherein the first route and the second route are provided with exhaust gas aftertreatment subsystems. The exhaust gas aftertreatment subsystems of the first route and the second route use different exhaust gas aftertreatment technologies.

5.

发明申请
System and Method for Exhaust Gas After Treatment 失效
标题翻译：处理后废气的系统和方法

公开(公告)号：US20130287664A1

公开(公告)日：2013-10-31

申请号：US13456806

申请日：2012-04-26

申请人： Praveen Chavannavar

发明人： Praveen Chavannavar

IPC分类号： B01D53/56 , B01D53/72 , B01J38/10

CPC分类号： B01D53/9431 , B01D53/56 , B01D53/72 , B01D53/9409 , B01D2251/206 , B01D2251/208 , B01D2255/9045 , B01D2257/404 , B01J38/10 , C01B3/04 , C01B3/047 , C01B3/38 , C01B17/16 , C01B17/508 , C01B21/26 , F01N3/2066 , F01N3/208 , F01N13/0093 , F01N2590/08 , F01N2610/02 , F01N2610/03 , F01N2900/1404 , Y02E60/364 , Y02P20/584 , Y02T10/24

摘要： A hydrocarbon selective catalytic reduction (HC-SCR) catalyst is regenerated using a nitrogen-based reductant agent. The HC-SCR catalyst is in communication with a power system such as an internal combustion engine and receives exhaust gasses from the internal combustion engine. Sulfur in the exhaust gasses may deactivate the HC-SCR catalyst by sulfur oxides forming thereon. To remove the sulfur oxides, a nitrogen-based reductant agent is introduced to the exhaust gasses. The nitrogen-based reductant agent decomposes to nitrogen oxides and hydrogen. The hydrogen reacts with the sulfur oxides to form hydrogen sulfides thereby removing the sulfur oxides from the HC-SCR catalyst.

摘要翻译： 烃选择性催化还原（HC-SCR）催化剂使用氮系还原剂再生。 HC-SCR催化剂与诸如内燃机的动力系统连通并且接收来自内燃机的废气。废气中的硫可能会在其上形成硫氧化物使HC-SCR催化剂失活。为了除去硫氧化物，将氮系还原剂引入废气中。氮系还原剂分解成氮氧化物和氢。氢与硫氧化物反应形成硫化氢，从而从HC-SCR催化剂除去硫氧化物。

6.

发明授权
Method for controlling exhaust gas purification device 失效
标题翻译：排气净化装置的控制方法

公开(公告)号：US08453435B2

公开(公告)日：2013-06-04

申请号：US12920523

申请日：2009-03-13

申请人： Taisuke Ono

发明人： Taisuke Ono

IPC分类号： F01N3/00

CPC分类号： B01D53/9454 , B01D53/9495 , B01D2251/11 , B01D2251/208 , B01D2255/9045 , B01D2255/91 , F01N3/0871 , F01N3/0878 , F01N13/011 , F01N2240/14 , F01N2240/18 , F01N2240/36 , F01N2410/04 , F01N2410/12 , F01N2610/03 , Y02T10/20 , Y02T10/22

摘要： Disclosed is a method for controlling an exhaust gas purification device, wherein the regeneration operation includes main regeneration operation for detaching the nitrogen oxides adsorbed onto the nitrogen oxide adsorbing material, the method comprising: operating the first combustion device and the second combustion device while the exhaust gas is prevented from flowing into the branch exhaust passage subjected to the regeneration operation by the switching of a changeover valve during the regeneration operation; and decreasing the flow rate of the first mixture gas as the stage of the main regeneration operation advances.

摘要翻译： 本发明公开了一种废气净化装置的控制方法，其特征在于，所述再生动作包括用于分离吸附在所述氮氧化物吸附材料上的氮氧化物的主再生动作，所述方法包括：在排气中操作所述第一燃烧装置和所述第二燃烧装置通过在再生运转中切换切换阀，防止气体流入经受再生运转的分支排气通路; 并且随着主再生操作的阶段的进行，降低第一混合气体的流量。

7.

发明授权
Process for reducing NOx emissions from engine exhaust using LNT and SCR components 有权
标题翻译：使用LNT和SCR组件减少发动机排气中的NOx排放的方法

公开(公告)号：US08112987B2

公开(公告)日：2012-02-14

申请号：US12201389

申请日：2008-08-29

申请人： Owen H. Bailey

发明人： Owen H. Bailey

IPC分类号： F01N3/20

CPC分类号： F01N3/0878 , B01D53/90 , B01D53/9418 , B01D53/9481 , B01D2251/202 , B01D2251/204 , B01D2251/2062 , B01D2251/2067 , B01D2251/208 , B01D2255/9045 , F01N3/0814 , F01N13/009 , F01N13/011 , F01N2240/30 , F01N2240/36 , F01N2410/12 , F01N2610/02 , F01N2610/03 , F01N2610/04 , F01N2610/05 , F01N2610/14 , Y02A50/2325 , Y02T10/24

摘要： A method of reducing NOx in a vehicle exhaust operating by alternating exhaust flow between two lean NOx traps and directing the emerging exhaust to a downstream SCR catalyst system. While exhaust predominantly flows through one of the lean NOx traps, a reductant is provided to the other NOx trap so as to produce ammonia that is also directed to the SCR catalyst system. An exhaust system implementing the method of the invention is also provided.

摘要翻译： 一种通过在两个贫NOx捕集器之间交替排出废气来操作的车辆排气中的NOx的方法，并将排出的废气引导到下游SCR催化剂系统。虽然排气主要流过其中一个贫NOx捕集器，但是还原剂被提供给另一个NOx捕集器，以产生也导向SCR催化剂系统的氨。还提供了实现本发明的方法的排气系统。

8.

发明申请
EXHAUST-GAS AFTERTREATMENT SYSTEM 有权
标题翻译：排气后处理系统

公开(公告)号：US20100089034A1

公开(公告)日：2010-04-15

申请号：US12569755

申请日：2009-09-29

申请人： Jan Harmsen

发明人： Jan Harmsen

IPC分类号： F01N11/00 , F01N3/035 , F01N9/00 , F02D41/00

CPC分类号： B01D53/9431 , B01D53/944 , B01D53/9477 , B01D2255/9045 , B01D2258/012 , F01N3/035 , F01N13/009 , F01N13/011 , F01N2490/06 , Y02T10/22

摘要： The description relates to an exhaust-gas aftertreatment system for exhaust gases of an internal combustion engine, in particular a diesel engine or a direct injection gasoline engine, said exhaust-gas aftertreatment system being arranged in an exhaust system and having a filter element and a catalyst element as exhaust-gas aftertreatment element. A portion of the engine exhaust gases goes to the particulate filter and the other portion of engine exhaust gases goes to the catalyst element. The outlet of the filter element is directed to the inlet of the catalyst element and the outlet of the catalyst element is directed to the inlet of the filter element. Thus, the engine exhaust gases are filtered and processed by a catalyst.

摘要翻译： 该描述涉及一种用于内燃机，特别是柴油发动机或直接喷射汽油发动机的废气的废气后处理系统，所述排气后处理系统布置在排气系统中，并且具有过滤元件和催化剂元素作为废气后处理元件。发动机废气的一部分流到颗粒过滤器，而另一部分发动机废气进入催化剂元件。过滤元件的出口被引导到催化剂元件的入口，并且催化剂元件的出口被引导到过滤元件的入口。因此，发动机废气被催化剂过滤和处理。