公开(公告)号：US20130183203A1

公开(公告)日：2013-07-18

申请号：US13260986

申请日：2010-10-04

申请人： Masao Watanabe ,  Koutarou Hayashi ,  Kohei Yoshida ,  Yuki Bisaiji ,  Kazuhiro Umemoto

发明人： Masao Watanabe ,  Koutarou Hayashi ,  Kohei Yoshida ,  Yuki Bisaiji ,  Kazuhiro Umemoto

IPC分类号： B01D53/94

CPC分类号： B01D53/9431 ,  B01D53/9422 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/91 ,  B01J23/42 ,  B01J23/464 ,  B01J23/58 ,  B01J23/63 ,  B01J35/0006 ,  B01J35/04 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/36 ,  F01N2240/30 ,  F01N2610/03

摘要： In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. The exhaust purification catalyst (13) is comprised of a mixture of a first catalyst in which platinum (51) and a basic layer (52) are carried on alumina (50) and a second catalyst in which rhodium (56) is carried on zirconia (55). The concentration of hydrocarbons which flow into the exhaust purification catalyst (13) is made to vibrate by within a predetermined range of amplitude of a 200 ppm or more and within a predetermined range of period of 5 second or less, whereby the NOx which is contained in exhaust gas is reduced at the exhaust purification catalyst (13).

摘要翻译： 在内燃机中，配置有发动机排气通路内部的烃供给阀（15）和排气净化催化剂（13）。 废气净化催化剂（13）由在氧化铝（50）上载有铂（51）和碱性层（52）的第一催化剂和其中铑（56）载于氧化锆上的第二催化剂的混合物组成 （55）。 流入排气净化催化剂（13）的碳氢化合物的浓度在200ppm以上的振幅的预定范围内振动，并且在5秒以下的预定范围内，由此含有 在排气净化催化剂（13）中的排气减少。

公开(公告)号：US08486852B2

公开(公告)日：2013-07-16

申请号：US13550356

申请日：2012-07-16

申请人： Ho-In Lee ,  Yeon-Su Kim ,  Yong-Kwon Chung ,  Jin Ha Lee ,  Jie Won Park

发明人： Ho-In Lee ,  Yeon-Su Kim ,  Yong-Kwon Chung ,  Jin Ha Lee ,  Jie Won Park

IPC分类号： B01J23/00 ,  B01J21/00 ,  B01J20/00 ,  C22C28/00 ,  C22C5/04 ,  H01M4/02 ,  H01M4/36 ,  H01M4/92

CPC分类号： B01D53/945 ,  B01D53/9422 ,  B01D53/944 ,  B01D2255/1021 ,  B01D2255/2068 ,  B01D2255/30 ,  B01D2255/91 ,  B01D2255/9207 ,  B01D2279/30 ,  B01J23/63 ,  B01J35/002 ,  B01J35/1019 ,  F01N3/035 ,  Y02A50/2324 ,  Y02T10/22

摘要： A catalyst for diesel particle filter includes a platinum (Pt)-neodymium (Nd) alloy that is carried in silica, a preparation method thereof and a soot reduction device for diesel engine including the same, wherein the catalyst for diesel particle filter can maintain high catalyst activity and implement high nitrogen monoxide (NO) conversion efficiency even though it is used under the high temperature or vulcanization condition for a long time.

公开(公告)号：US08481442B2

公开(公告)日：2013-07-09

申请号：US13568012

申请日：2012-08-06

申请人： Andreas Döring

发明人： Andreas Döring

IPC分类号： B01J29/04 ,  B01J29/06

CPC分类号： B01D53/9431 ,  B01D53/9422 ,  B01D53/9481 ,  B01D2253/108 ,  B01D2255/102 ,  B01D2255/2042 ,  B01D2255/2045 ,  B01D2255/206 ,  B01D2255/20723 ,  B01D2255/2073 ,  B01D2255/20769 ,  B01D2255/50 ,  B01D2255/91 ,  B01D2257/302 ,  B01D2257/702 ,  B01J20/18

摘要： An arrangement for aftertreatment of exhaust gas for lean-burn internal combustion engines such as diesel engines and Otto engines with direct injection has a NOx storage catalyzer installed in the exhaust gas train for reducing nitrogen oxides and at which nitrogen oxides are stored in lean operating phases and these stored nitrogen oxides are reduced in rich operating phases. At least one molecular sieve which keeps sulfur dioxide away from the at least one NOx storage catalyzer is arranged upstream of the NOx storage catalyzer.

摘要翻译： 用于诸如柴油发动机和具有直接喷射的奥托发动机的稀燃内燃机的废气的后处理装置具有安装在排气系中用于还原氮氧化物的氮氧化物储存催化剂，并且在稀薄运行阶段存储氮氧化物 并且这些储存的氮氧化物在丰富的操作阶段被还原。 至少一个使二氧化硫远离至少一个NOx储存催化剂的分子筛布置在NOx储存催化剂的上游。

公开(公告)号：US20130149220A1

公开(公告)日：2013-06-13

申请号：US13525461

申请日：2012-06-18

申请人： DANIEL SWALLOW ,  ANDREW FRANCIS CHIFFEY ,  PAUL RICHARD PHILLIPS

发明人： DANIEL SWALLOW ,  ANDREW FRANCIS CHIFFEY ,  PAUL RICHARD PHILLIPS

IPC分类号： B01D53/94

CPC分类号： B01J23/40 ,  B01D39/00 ,  B01D53/94 ,  B01D53/9418 ,  B01D53/9422 ,  B01D53/944 ,  B01D53/9472 ,  B01D53/9477 ,  B01D2255/102 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2258/012 ,  B01J23/002 ,  B01J23/42 ,  B01J23/44 ,  B01J23/464 ,  B01J23/63 ,  B01J23/6562 ,  B01J23/72 ,  B01J23/74 ,  B01J23/755 ,  B01J29/00 ,  B01J29/0333 ,  B01J29/0356 ,  B01J29/072 ,  B01J29/106 ,  B01J29/14 ,  B01J29/24 ,  B01J29/46 ,  B01J29/56 ,  B01J29/63 ,  B01J29/68 ,  B01J29/76 ,  B01J29/7615 ,  B01J29/763 ,  B01J29/7661 ,  B01J29/80 ,  B01J29/84 ,  B01J29/87 ,  B01J29/89 ,  B01J35/0006 ,  B01J35/023 ,  B01J35/04 ,  B01J37/0036 ,  B01J37/0201 ,  B01J37/0244 ,  B01J37/0246 ,  B01J37/0248 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/106 ,  F01N3/2073 ,  Y02A50/2341 ,  Y02T10/24 ,  Y10S502/52712 ,  B01J2523/00 ,  B01J2523/31 ,  B01J2523/3712 ,  B01J2523/48

摘要： An exhaust system, and a catalyzed substrate for use in an exhaust system, is disclosed. The exhaust system comprises a lean NO trap and the catalyzed substrate. The catalyzed substrate has a first zone, having a platinum group metal loaded on a support, and a second zone, having copper or iron loaded on a zeolite. The first zone or second zone additionally comprises a base metal oxide or a base metal loaded on an inorganic oxide. Also provided are methods for treating an exhaust gas from an internal combustion engine using the exhaust system. The exhaust system is capable of storing NH3 generated in rich purging, reacting the NH3 with slip NOX, controlling H2S released from NO trap desulfation, and oxidizing slip hydrocarbons and carbon monoxide. When the catalyzed substrate is a filter substrate, it is also capable of removing soot from exhaust system.

摘要翻译： 公开了一种排气系统和用于排气系统的催化底物。 排气系统包括贫NO阱和催化底物。 催化底物具有装载在载体上的铂族金属的第一区和负载在沸石上的铜或铁的第二区。 第一区域或第二区域另外包含负载在无机氧化物上的贱金属氧化物或贱金属。 还提供了使用排气系统处理来自内燃机的废气的方法。 排气系统能够储存丰富吹扫中产生的NH 3，使NH3与滑移NOX反应，控制从NO捕集器脱硫释放的H2S，以及氧化滑动烃和一氧化碳。 当催化底物是过滤基材时，它也能够从排气系统中除去烟尘。

公开(公告)号：US08425869B2

公开(公告)日：2013-04-23

申请号：US12669376

申请日：2008-07-04

申请人： Naohiro Sato ,  Osami Yamamoto ,  Koichi Inaba

发明人： Naohiro Sato ,  Osami Yamamoto ,  Koichi Inaba

IPC分类号： B01D53/56 ,  B01J21/00 ,  B01J21/06

CPC分类号： F01N3/0871 ,  B01D53/9418 ,  B01D53/9422 ,  B01D2255/1021 ,  B01D2255/2061 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/20738 ,  B01D2255/40 ,  B01D2255/502 ,  B01D2255/9022 ,  B01D2255/91 ,  B01D2255/911 ,  B01D2258/012 ,  B01J23/63 ,  B01J29/7057 ,  B01J29/7615 ,  B01J35/04 ,  B01J37/0244 ,  B01J37/0246 ,  F01N2370/04 ,  F01N2510/0682 ,  Y02A50/2325 ,  Y02T10/20 ,  Y02T10/24

摘要： Disclosed is a NOx purifying catalyst which is capable of removing NOx sufficiently efficiently even during operations at low temperatures such as operations in diesel cars. Specifically disclosed is a NOx purifying catalyst for processing NOx in an exhaust gas by performing lean/rich control of air-fuel ratio of the exhaust gas. This NOx purifying catalyst comprises at least a first catalyst layer containing a β zeolite containing iron element and a second catalyst layer containing a noble metal, a cerium oxide material and a specific zirconium oxide material. The second catalyst layer and the first catalyst layer are sequentially arranged on a carrier in such a manner that the first catalyst layer forms the uppermost layer.

摘要翻译： 公开了一种NOx净化催化剂，其即使在低温操作（例如柴油车辆中的操作）也能够充分有效地除去NOx。 具体公开了一种用于通过对废气的空燃比进行稀薄/丰富的控制来处理废气中的NOx的NOx净化催化剂。 该NOx净化催化剂至少包含含有含铁元素的β沸石的第一催化剂层和含有贵金属，氧化铈材料和特定氧化锆材料的第二催化剂层。 第二催化剂层和第一催化剂层以使得第一催化剂层形成最上层的顺序排列在载体上。

公开(公告)号：US08418444B2

公开(公告)日：2013-04-16

申请号：US12294296

申请日：2007-03-23

申请人： Masanori Ikeda ,  Naohiro Kato

发明人： Masanori Ikeda ,  Naohiro Kato

IPC分类号： F01N3/00

CPC分类号： B01D53/9472 ,  B01D53/9422 ,  B01D53/945 ,  B01D2251/208 ,  B01D2255/102 ,  B01D2255/2047 ,  B01J23/58 ,  B01J37/0246 ,  F01N3/0253 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/106 ,  F01N11/00 ,  F01N13/0097 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2560/14 ,  Y02T10/22 ,  Y02T10/47

摘要： Temperature range enabling combustion of high concentration hydrocarbon is enlarged, or high temperature gas is rapidly supplied to a latter part catalyst. Provided is a method for purification of exhaust gas from an internal combustion engine, by using a catalyst for increasing temperature of exhaust gas from an internal combustion engine, wherein hydrocarbon from 1,000 to 40,000 ppm by volume, as converted to methane, to the exhaust gas, is introduced at the upstream side of the catalyst for increasing temperature, along flow of the exhaust gas inside a passage of exhaust gas from the internal combustion engine.

摘要翻译： 可以扩大高浓度烃的燃烧温度范围，或将高温气体快速供给后一部分催化剂。 提供了一种通过使用用于提高来自内燃机的排气温度的催化剂来净化来自内燃机的废气的方法，其中将从甲烷转化为1,000至40,000ppm体积的烃转化为废气 在催化剂的上游侧引入，用于随着排气在来自内燃机的废气通道内的流动而增加温度。

公开(公告)号：US20130028818A1

公开(公告)日：2013-01-31

申请号：US13639424

申请日：2011-04-05

申请人： Stephan Eckhoff ,  Frank Adam ,  Christian Lammarck

发明人： Stephan Eckhoff ,  Frank Adam ,  Christian Lammarck

IPC分类号： B01D53/94

CPC分类号： F01N3/0814 ,  B01D53/9422 ,  B01D53/9427 ,  B01D53/9477 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/9155 ,  F01N3/0842 ,  F01N3/0878 ,  F01N3/0885 ,  F01N13/009 ,  F01N2570/145 ,  Y02A50/2344 ,  Y02C20/10 ,  Y02T10/22

摘要： The present invention relates to a method for exhaust gas after-treatment for essentially lean-burn internal combustion engines and also a corresponding advantageous exhaust gas after-treatment system. In particular, the present invention relates to reducing the proportion of the greenhouse gas N20 in the total exhaust gas from a corresponding internal combustion system using at least one NOx storage catalyst as exhaust gas purification element. The objective of the invention is to operate the N20 depletion catalyst located downstream of the NOx storage catalyst under lambda=

摘要翻译： 本发明涉及一种用于基本上稀燃内燃机的废气后处理方法，以及相应的有利的废气后处理系统。 特别地，本发明涉及使用至少一种作为废气净化元件的NOx储存催化剂，减少来自相应的内燃系统的总废气中的温室气体N 2 O的比例。 本发明的目的是在由NO x存储催化剂形成的N 2 O到达N 2 O耗尽催化剂的情况下，在λ= <1的条件下，操作位于NO x存储催化剂下游的N2O消耗催化剂。

公开(公告)号：US08323579B2

公开(公告)日：2012-12-04

申请号：US12599815

申请日：2008-05-13

申请人： Yoshitsugu Ogura ,  Takayuki Endo

发明人： Yoshitsugu Ogura ,  Takayuki Endo

IPC分类号： B01D50/00

CPC分类号： B01J23/58 ,  B01D53/9422 ,  B01D53/949 ,  B01D2251/208 ,  B01D2255/1021 ,  B01D2255/2022 ,  B01D2255/2042 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/9022 ,  B01D2255/91 ,  B01D2257/302 ,  B01J35/0006 ,  B01J37/0242 ,  F01N3/0814 ,  F01N3/085 ,  F01N13/0097 ,  F01N2510/067 ,  F01N2510/0682 ,  F01N2570/04

摘要： An S storage catalyst 2 is equipped with a catalytic supporter, a catalytic metal being supported on this catalytic supporter and oxidizing SO2 to SO3, and an S storage material being supported on the catalytic supporter and storing S components therein. This S storage catalyst 2 has an exhaust-gas-inlet-side high-concentration portion 2A in which the S storage material is supported on the catalytic supporter in a high concentration, and an exhaust-gas-outlet-side low-concentration portion 2A in which the S storage material is supported on the catalytic supporter in a low concentration that is lower than that of the high-concentration portion. In accordance with this S storage catalyst 2, it is possible to maintain the S storing performance favorably, even in a case where exhaust-gas temperatures are low, while keeping the material cost from rising steeply.

摘要翻译： S储存催化剂2配备有催化剂载体，催化金属负载在该催化剂载体上并将SO 2氧化成SO 3，S载体负载在催化剂载体上并储存S组分。 该S吸留催化剂2具有排气入口侧高浓度部2A，其中S储存材料以高浓度负载在催化剂载体上，排气 - 出口侧低浓度部分2A 其中S储存材料以低于高浓度部分的低浓度负载在催化剂载体上。 根据该S吸留催化剂2，即使在废气温度低的情况下，同时保持材料成本急剧上升，也可以良好地保持S储存性能。

公开(公告)号：US20120302432A1

公开(公告)日：2012-11-29

申请号：US13568012

申请日：2012-08-06

申请人： Andreas Döring

发明人： Andreas Döring

IPC分类号： B01J29/83 ,  B01J29/82

CPC分类号： B01D53/9431 ,  B01D53/9422 ,  B01D53/9481 ,  B01D2253/108 ,  B01D2255/102 ,  B01D2255/2042 ,  B01D2255/2045 ,  B01D2255/206 ,  B01D2255/20723 ,  B01D2255/2073 ,  B01D2255/20769 ,  B01D2255/50 ,  B01D2255/91 ,  B01D2257/302 ,  B01D2257/702 ,  B01J20/18

摘要： An arrangement for aftertreatment of exhaust gas for lean-burn internal combustion engines such as diesel engines and Otto engines with direct injection has a NOx storage catalyzer installed in the exhaust gas train for reducing nitrogen oxides and at which nitrogen oxides are stored in lean operating phases and these stored nitrogen oxides are reduced in rich operating phases. At least one molecular sieve which keeps sulfur dioxide away from the at least one NOx storage catalyzer is arranged upstream of the NOx storage catalyzer.

摘要翻译： 用于诸如柴油发动机和具有直接喷射的奥托发动机的稀燃内燃机的废气的后处理装置具有安装在排气系中用于还原氮氧化物的氮氧化物储存催化剂，并且在稀薄运行阶段存储氮氧化物 并且这些储存的氮氧化物在丰富的操作阶段被还原。 至少一个使二氧化硫远离至少一个NOx储存催化剂的分子筛布置在NOx储存催化剂的上游。

公开(公告)号：US08276369B2

公开(公告)日：2012-10-02

申请号：US12599212

申请日：2008-07-11

申请人： Hiromasa Nishioka ,  Shinya Hirota ,  Kotaro Hayashi ,  Takamitsu Asanuma ,  Kohei Yoshida ,  Hiroshi Otsuki

发明人： Hiromasa Nishioka ,  Shinya Hirota ,  Kotaro Hayashi ,  Takamitsu Asanuma ,  Kohei Yoshida ,  Hiroshi Otsuki

IPC分类号： F01N3/00 ,  F01N3/10 ,  F01N3/02

CPC分类号： F01N3/0814 ,  B01D46/006 ,  B01D46/42 ,  B01D53/9422 ,  B01D53/9477 ,  B01D53/949 ,  B01D2255/915 ,  B01D2257/302 ,  B01D2279/30 ,  F01N3/0253 ,  F01N3/0807 ,  F01N3/085 ,  F01N3/0885 ,  F01N13/009 ,  F01N2250/14 ,  F01N2570/04 ,  F01N2610/03

摘要： In the present exhaust purification system of an internal combustion engine, a particulate filter is arranged downstream of an NOx storage/reduction catalyst device and an S trap device is arranged upstream of the NOx storage/reduction catalyst device. A first fuel supplying device for supplying additional fuel for regeneration of the particulate filter to the exhaust system upstream of the S trap device or into the cylinder is provided. An amount of the additional fuel supplied by the first fuel supplying device is controlled to make the S trap device not release SOx. A second fuel supplying device is provided in the exhaust system between the NOx storage/reduction catalyst device and the particulate filter to make up for a deficiency of the additional fuel supplied by the first fuel supplying device in the regeneration treatment of the particulate filter.

摘要翻译： 在本发明的内燃机的排气净化系统中，在NOx吸留还原催化剂装置的下游配置微粒过滤器，在NOx吸留还原催化剂装置的上游配置有S阱装置。 提供了一种第一燃料供给装置，用于向颗粒过滤器再生的附加燃料供给到S捕集装置或气缸上游的排气系统。 控制由第一燃料供给装置供给的附加燃料的量，以使S捕集装置不释放SOx。 第二燃料供给装置设置在NOx储存还原催化剂装置和微粒过滤器之间的排气系统中，以弥补由微粒过滤器的再生处理中由第一燃料供应装置供应的附加燃料的不足。