公开(公告)号：US20050025692A1

公开(公告)日：2005-02-03

申请号：US10838586

申请日：2004-05-04

Applicant: Dawn Becher ,  Fred Begale ,  Reg Crane ,  Wayne Kaboord ,  Mohan Radhamohan

Inventor： Dawn Becher ,  Fred Begale ,  Reg Crane ,  Wayne Kaboord ,  Mohan Radhamohan

IPC: B01D53/90 ,  B01D53/94 ,  C01C1/04 ,  C05C3/00 ,  F01N3/20

CPC classification number: F01N3/2066 ,  B01D53/90 ,  B01D53/9409 ,  B01D53/9431 ,  B01D2251/2062 ,  B01D2257/102 ,  C01C1/0405 ,  C01C1/0447 ,  C01C1/0482 ,  C05C3/00 ,  F01N2240/25 ,  F01N2240/30 ,  F01N2590/08 ,  F01N2610/02 ,  Y02A50/2325 ,  Y02P20/52 ,  Y02T10/24

Abstract: The present invention comprises, without limitation, an on-board micro ammonia plant that offers a solution of NOx reduction without the hazards and inconvenience of carrying a secondary fluid on the vehicle. Thus, one embodiment of the present invention comprises a micro ammonia plant that controllably produces and stores ammonia that is used to reduce NOx levels in the exhaust streams of internal combustion engines.

Abstract translation: 本发明包括但不限于提供NOx还原解决方案的车载微氨装置，而不会在车辆上携带次级流体的危险和不便。 因此，本发明的一个实施方案包括可控地生产和储存用于降低内燃机排气流中的NOx水平的氨的微氨装置。

公开(公告)号：US20050022450A1

公开(公告)日：2005-02-03

申请号：US10925809

申请日：2004-08-25

Applicant: Cher-Dip Tan ,  Jeffrey Weissman ,  Joseph Bonadies ,  John Kirwan

Inventor： Cher-Dip Tan ,  Jeffrey Weissman ,  Joseph Bonadies ,  John Kirwan

IPC: B01D53/94 ,  C01B3/38 ,  F01N3/20 ,  F01N13/02 ,  C01B3/24

CPC classification number: H01M8/0668 ,  B01D53/9431 ,  B01D2255/206 ,  C01B3/386 ,  C01B3/48 ,  C01B2203/0261 ,  C01B2203/0283 ,  C01B2203/042 ,  C01B2203/044 ,  C01B2203/045 ,  C01B2203/047 ,  C01B2203/0485 ,  C01B2203/066 ,  C01B2203/068 ,  C01B2203/1047 ,  C01B2203/1082 ,  C01B2203/1247 ,  C01B2203/1685 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/206 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/0093 ,  F01N2240/25 ,  F01N2240/28 ,  F01N2240/30 ,  F01N2610/03 ,  F01N2610/04 ,  F01N2610/08 ,  H01M8/0612 ,  H01M8/0662 ,  H01M2008/1095 ,  H01M2008/1293 ,  Y02T10/24

Abstract: A reformer system comprises a reformer catalyst capable of reforming a fuel to hydrogen and carbon monoxide, and a water gas shift catalyst in fluid communication with the reformer catalyst and in fluid communication with an exhaust gas source comprising water, wherein the water gas shift catalyst is capable of reacting carbon monoxide with the water to produce hydrogen and carbon dioxide.

Abstract translation: 重整器系统包括能够将燃料重整为氢气和一氧化碳的重整器催化剂和与重整器催化剂流体连通并与包含水的废气源流体连通的水煤气变换催化剂，其中水煤气变换催化剂为 能够使一氧化碳与水反应产生氢气和二氧化碳。

公开(公告)号：US06820415B2

公开(公告)日：2004-11-23

申请号：US10336993

申请日：2003-01-06

Applicant: Oliver Abet ,  Holger Adler ,  Brigitte Konrad ,  Thomas Liebscher ,  Michel Weibel

Inventor： Oliver Abet ,  Holger Adler ,  Brigitte Konrad ,  Thomas Liebscher ,  Michel Weibel

IPC: F01N300

CPC classification number: F01N3/0842 ,  B01D53/90 ,  B01D53/92 ,  F01N3/0814 ,  F01N3/0871 ,  F01N3/20 ,  F01N13/009 ,  F01N13/0093 ,  F01N2240/25 ,  F01N2430/085 ,  F01N2610/02 ,  F02B37/00 ,  F02B75/20 ,  F02D41/0275 ,  F02D41/1446 ,  F02D41/402 ,  F02D2200/0406 ,  F02D2200/0414 ,  Y02A50/2322 ,  Y02T10/44

Abstract: In a method for operating an internal combustion engine using exhaust gas purification system, and internal combustion engine, the method for operating an internal combustion engine with exhaust gas purification system, in which a rich mode of the internal combustion engine with a rich exhaust gas composition and a lean mode of the internal combustion engine with a lean exhaust gas composition are set alternately, and by the exhaust gas purification system with a rich exhaust gas composition ammonia is synthesized and stored and with a lean exhaust gas composition nitrogen oxides are reduced to form nitrogen by means of the stored ammonia. The quantity of fuel which is introduced by a combustion cycle of the internal combustion engine is introduced by at least one preinjection, at least one main injection and at least one afterinjection, the at least one preinjection and the at least one main injection are burnt under excess oxygen in order to generate a quantity of nitrogen oxides which is sufficient for the ammonia synthesis, and a rich or lean exhaust gas composition is set by the at least one afterinjection. The method may be used, for example, for exhaust gas purification in motor vehicle diesel engines.

Abstract translation: 在使用废气净化系统和内燃机的内燃机的运转方法中，具有排气净化系统的内燃机的运转方法，其中，具有浓气排放组成的内燃机的富模式 并且具有贫排气组成的内燃机的稀薄模式被交替地设置，并且通过具有浓排气组成的氨的废气净化系统被合成并储存，并且用贫排气组合物将氮氧化物还原形成 氮气通过储存的氨。 通过内燃机的燃烧循环引入的燃料量通过至少一个预喷射，至少一个主喷射和至少一个喷射后引入，至少一个预喷射和至少一个主喷射在下面燃烧 过量氧以产生足以用于氨合成的氮氧化物，并且通过至少一次注入后设定浓或贫废气组合物。 该方法可以用于例如机动车辆柴油发动机中的废气净化。

公开(公告)号：US20040040288A1

公开(公告)日：2004-03-04

申请号：US10369348

申请日：2003-02-14

Inventor： Eberhard Jacob ,  Sebastian Kafer ,  Werner Muller ,  Andreas Lacroix ,  Andreas Herr

IPC: F01N003/10 ,  F01N003/00

CPC classification number: F01N3/2066 ,  B01D53/8631 ,  B01D53/90 ,  B01D53/9431 ,  C01C1/02 ,  C01C1/086 ,  F01N2240/25 ,  F01N2240/40 ,  F01N2610/02 ,  F01N2610/06 ,  F01N2610/10 ,  F17C11/00 ,  Y02A50/2325 ,  Y02E20/14 ,  Y02P20/129 ,  Y02P20/13 ,  Y02T10/24

Abstract: A method is provided for producing ammonia (NH3) and introducing the produced ammonia (NH3) into an exhaust gas stream as a reduction means for selectively catalytically reducing nitrogen oxides contained in the exhaust gas stream, which is an exhaust stream generated by the combustion process of a motor, a gas turbine, or a burner. The method comprises feeding dry urea from a supply container in a controlled amount to reactor and subjecting the dry urea in the reactor to a sufficiently rapid thermal treatment such that a gas mixture comprising the reaction products of ammonia (NH3) and isocyanic acid (HCNO) is created. Also, the method comprises immediately catalytically treating the thus produced gas mixture in the presence of water such that the isocyanic acid (HCNO) resulting from the rapid thermal treatment is converted, via quantitative hydrolysis treatment, into ammonia (NH3) and carbon dioxide (CO2).

Abstract translation: 提供了用于生产氨（NH 3）并将生成的氨（NH 3）引入废气流中的方法，作为还原装置，用于选择性地催化还原废气流中包含的氮氧化物，废气流是由燃烧过程产生的排气流 电动机，燃气轮机或燃烧器。 该方法包括将来自受控量的供应容器中的干脲从反应器中进料，并对反应器中的干燥脲进行充分快速的热处理，使得包含氨（NH 3）和异氰酸（HCNO）的反应产物的气体混合物 被创建 此外，该方法包括在水存在下立即对由此产生的气体混合物进行催化处理，使得通过定量水解处理将由快速热处理产生的异氰酸（HCNO）转化为氨（NH 3）和二氧化碳（CO 2 ）。

公开(公告)号：US06698188B2

公开(公告)日：2004-03-02

申请号：US09998181

申请日：2001-12-03

Applicant: Yasuyuki Irisawa ,  Hiroshi Tanaka ,  Junichi Kako

Inventor： Yasuyuki Irisawa ,  Hiroshi Tanaka ,  Junichi Kako

IPC: F01N300

CPC classification number: F01N3/0807 ,  F01N3/0842 ,  F01N3/106 ,  F01N13/009 ,  F01N2240/25 ,  F01N2560/026 ,  F02D41/0275 ,  F02D41/1454 ,  F02D41/146 ,  F02D2041/1468

Abstract: A NOx occluding member that occludes NOx when the air-fuel ratio is on the fuel-lean side is disposed in an engine exhaust passage. An NOx ammonia sensor is disposed in the engine exhaust passage downstream of the NOx occluding member. A surplus amount of a reducing agent that is not used to release NOx is determined from a change in the ammonia concentration detected by the NOx ammonia sensor when the air-fuel ratio is changed to the fuel-rich side so as to release the NOx from the NOx occluding member.

Abstract translation: 在空燃比处于燃料贫乏侧时封闭NOx的NOx吸留部件设置在发动机排气通路内。 NO x氨传感器设置在NOx吸留构件下游的发动机排气通道中。 当空燃比改变为富燃料侧时，由NOx氨传感器检测到的氨浓度的变化确定了不用于释放NOx的剩余量的还原剂，以便将NOx从 NOx吸留构件。

公开(公告)号：US6133185A

公开(公告)日：2000-10-17

申请号：US744814

申请日：1996-11-06

Applicant: Yukio Kinugasa ,  Kouhei Igarashi ,  Takaaki Itou ,  Naoto Suzuki ,  Takehisa Yaegashi ,  Takaaki Kanazawa ,  Takahiro Hayashi ,  Koji Yokota ,  Yasutaka Nagai

Inventor： Yukio Kinugasa ,  Kouhei Igarashi ,  Takaaki Itou ,  Naoto Suzuki ,  Takehisa Yaegashi ,  Takaaki Kanazawa ,  Takahiro Hayashi ,  Koji Yokota ,  Yasutaka Nagai

IPC: B01D53/94 ,  F01N3/08 ,  F02B1/04 ,  F02D41/02 ,  B01J29/06

CPC classification number: F01N3/10 ,  B01D53/9418 ,  B01D53/9495 ,  F01N13/009 ,  F01N13/0097 ,  F01N3/0842 ,  F01N3/106 ,  F01N3/108 ,  B01D2255/1021 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/911 ,  B01D53/9477 ,  F01N2240/25 ,  F01N2250/12 ,  F01N2370/04 ,  F01N2570/14 ,  F02B1/04 ,  F02D41/0275 ,  Y02T10/24

Abstract: An exhaust gas purifying catalyst, for reducing nitrogen oxides and ammonia in an exhaust gas of an internal combustion engine, in an oxidizing atmosphere, is provided. The exhaust gas purifying catalyst comprises a first catalyst having zeolite carrying platinum and copper thereon. Preferably, the exhaust gas purifying catalyst further comprises a second catalyst having zeolite carrying copper thereon. Preferably, the second catalyst is arranged upstream of the first catalyst, with respect to the exhaust gas flow.

Abstract translation: 提供一种用于在氧化气氛中还原内燃机的废气中的氮氧化物和氨的废气净化催化剂。 废气净化催化剂包括具有在其上载有铂和铜的沸石的第一催化剂。 优选地，废气净化催化剂还包含具有在其上载有铜的沸石的第二催化剂。 优选地，第二催化剂相对于废气流布置在第一催化剂的上游。

公开(公告)号：US5964088A

公开(公告)日：1999-10-12

申请号：US822555

申请日：1997-03-19

Applicant: Yukio Kinugasa ,  Takaaki Itou ,  Koichi Hoshi ,  Naoto Suzuki ,  Koichi Takeuchi ,  Takehisa Yaegashi ,  Kouhei Igarashi

Inventor： Yukio Kinugasa ,  Takaaki Itou ,  Koichi Hoshi ,  Naoto Suzuki ,  Koichi Takeuchi ,  Takehisa Yaegashi ,  Kouhei Igarashi

IPC: F02D43/00 ,  B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N3/24 ,  F01N9/00 ,  F01N13/02 ,  F02B1/04 ,  F02D41/02 ,  F02D41/04 ,  F02D41/14 ,  F01N3/00

CPC classification number: F02D41/1443 ,  B01D53/9431 ,  B01D53/9495 ,  F01N13/009 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/20 ,  F01N9/00 ,  F01N2240/25 ,  F01N2250/12 ,  F01N2560/025 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/03 ,  F02B1/04 ,  F02D41/0275 ,  Y02T10/22 ,  Y02T10/42 ,  Y02T10/47

Abstract: A device for purifying the exhaust gas of an engine having a plurality of cylinders divided into first and second cylinder groups, the first and the second cylinder groups being connected to first and second exhaust passage, respectively, and performing a lean operation, comprises an NH.sub.3 synthesizing catalyst arranged in the first exhaust passage, and an exhaust gas purifying catalyst arranged in an interconnecting passage, which interconnects the first passage downstream of the NH.sub.3 synthesizing catalyst and the second exhaust passage, for purifying the inflowing NO.sub.X and NH.sub.3. An additional engine performing a rich operation is provided and the exhaust gas thereof is fed to the first exhaust gas passage upstream of the NH.sub.3 synthesizing catalyst to make the exhaust gas air-fuel ratio of the exhaust gas flowing into the NH.sub.3 synthesizing catalyst rich, to thereby synthesize NH.sub.3 therein. An amount of NH.sub.3 or NO.sub.X flowing into the exhaust gas purifying catalyst is obtained, and the additional engine is controlled in accordance with the obtained NH.sub.3 or NO.sub.X amount to control the amount of the reducing agent flowing to the exhaust gas purifying catalyst.

Abstract translation: 一种用于净化具有分成第一和第二气缸组的多个气缸的发动机的排气的装置，所述第一和第二气缸组分别连接到第一和第二排气通道，并执行精馏操作，包括NH 3 配置在第一排气通道中的合成催化剂和布置在互连通道中的排气净化催化剂，其将NH3合成催化剂下游的第一通道和第二排气通道互连，以净化流入的NO x和NH 3。 提供执行富操作的附加发动机，其排气被送入NH 3合成催化剂上游的第一排气通道，使流入NH 3合成催化剂的废气的排气空燃比变浓，至 由此合成NH 3。 获得流入排气净化催化剂的NH 3或NO X量，根据得到的NH 3或NO X量控制附加发动机，以控制流向废气净化催化剂的还原剂的量。

公开(公告)号：US5809775A

公开(公告)日：1998-09-22

申请号：US831210

申请日：1997-04-02

Applicant: Theodore J. Tarabulski ,  Jeremy D. Peter-Hoblyn ,  James M. Valentine

Inventor： Theodore J. Tarabulski ,  Jeremy D. Peter-Hoblyn ,  James M. Valentine

IPC: B01D53/90 ,  B01D53/94 ,  F01N3/20 ,  C01B21/00

CPC classification number: F01N3/208 ,  B01D53/90 ,  B01D53/9431 ,  B01D53/9495 ,  B01D2251/2062 ,  F01N2240/20 ,  F01N2240/25 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/06 ,  F01N2610/10 ,  F01N2610/146 ,  F01N2900/1811 ,  Y02T10/24

Abstract: Urea or other solid NO.sub.x -reducing reagent is employed in a selective catalytic reduction process on emissions from diesel and lean-burn gasoline engines. The solid reagent is fed to a gas generator that produces a reactant gas by heating. In one embodiment the reactant gas is maintained at elevated temperatures to prevent condensation products from forming. The reactant gas contains ammonia and is fed to the exhaust on an as-needed basis.

Abstract translation: 尿素或其他固体NOx还原剂用于选择性催化还原过程中对柴油和稀燃汽油发动机的排放。 将固体试剂送入通过加热产生反应气体的气体发生器。 在一个实施方案中，反应物气体保持在升高的温度以防止冷凝产物形成。 反应气体含有氨，并在需要的基础上供给排气。

公开(公告)号：US11808732B2

公开(公告)日：2023-11-07

申请号：US16876296

申请日：2020-05-18

Applicant: Robert Bosch GmbH

Inventor： Andreas Fritsch ,  Sabine Gräbe ,  Torsten Handler

IPC: G01N27/416 ,  G01N33/00 ,  B01D53/94 ,  F01N11/00 ,  G01N27/407 ,  F01N3/08 ,  F01N3/20

CPC classification number: G01N27/4163 ,  B01D53/9431 ,  F01N11/00 ,  G01N27/407 ,  G01N33/007 ,  G01N33/0037 ,  G01N33/0054 ,  F01N3/0871 ,  F01N3/0885 ,  F01N3/2006 ,  F01N3/206 ,  F01N3/208 ,  F01N3/2066 ,  F01N3/2073 ,  F01N11/007 ,  F01N2240/25 ,  F01N2550/02 ,  F01N2550/03 ,  F01N2560/02 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/102 ,  F01N2610/1453 ,  F01N2900/04 ,  F01N2900/08 ,  F01N2900/1614 ,  F01N2900/1616

Abstract: A method for monitoring a gas sensor (14) which comprises two electrochemical measuring cells (20, 30) and which is arranged in an exhaust tract (10) of an internal combustion engine (11), wherein the sensor elements (20, 30) exhibit a substantially identical sensitivity towards a first gas component and a different sensitivity towards a second gas component and are insensitive towards further gas components. In an operating state in which an exhaust gas stream at the gas sensor (14) contains less of the second gas component than of the first gas component a concentration of the first gas component is calculated from each of the sensor signals from the sensor elements (20, 30) and a defect in a sensor element (20, 30) is deduced from the concentrations of the first gas component.

公开(公告)号：US20180320574A1

公开(公告)日：2018-11-08

申请号：US15774057

申请日：2016-11-09

Applicant: Plastic Omnium Advanced Innovation and Research

Inventor： Beatriz MONGE-BONINI ,  Jules-Joseph VAN SCHAFTINGEN ,  Pierre DE MAN ,  Francois DOUGNIER

IPC: F01N3/20

CPC classification number: F01N3/208 ,  F01N3/2066 ,  F01N2240/25 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/105 ,  F01N2610/1406 ,  Y02A50/2325 ,  Y02T10/24

Abstract: It is proposed a method for activating/deactivating a biological catalyst used in a conversion system on board a vehicle, the vehicle comprising a source of energy adapted to activate the biological catalyst for converting a compound into reaction product. The method comprises the steps of: —detecting (SI) an event indicative of a filling/refilling of the conversion system with biological catalyst; —determining (S2) an amount of energy available at the source of energy; —starting at least one conversion operation comprising the steps of: (i) verifying (S3) whether the amount of energy available is greater than or equal to an amount of energy needed for activating the biological catalyst so as to achieve a predetermined level of conversion of said compound; (ii) if said verifying (i) is positive, activating (S4) the biological catalyst; —terminating (S7) said at least one conversion operation.