公开(公告)号：US20240287928A1

公开(公告)日：2024-08-29

申请号：US18653126

申请日：2024-05-02

申请人： Cummins Emission Solutions Inc.

发明人： Matthew K. Volmerding ,  Varun Sood ,  Ramya vyas Arvind ,  James Zokoe, JR. ,  Ying Yuan ,  Yuying Song ,  Rayomand Dabhoiwala ,  Shirish S. Punde

IPC分类号： F01N13/00 ,  B01D53/94 ,  B01J29/072 ,  B01J35/00 ,  B01J35/56 ,  F01N3/035 ,  F01N3/10 ,  F01N3/20

CPC分类号： F01N13/009 ,  B01D53/9436 ,  B01D53/944 ,  B01D53/9472 ,  B01D53/9495 ,  B01J29/072 ,  B01J35/19 ,  B01J35/56 ,  F01N3/035 ,  F01N3/106 ,  F01N3/2066 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/9155 ,  B01D2257/302 ,  B01D2257/404 ,  B01D2257/406 ,  B01D2257/502 ,  B01D2257/702 ,  B01D2258/01 ,  F01N2510/065 ,  F01N2610/03 ,  F01N2610/1453

摘要： An aftertreatment system includes an upstream particulate filter, a decomposition chamber, a decomposition chamber dosing module, a first downstream catalyst member, and a downstream particulate filter. The decomposition chamber is positioned downstream of the upstream particulate filter. The decomposition chamber dosing module is coupled to the decomposition chamber and is configured to provide downstream treatment fluid into the decomposition chamber. The first downstream catalyst member is positioned downstream of the decomposition chamber and comprises a first downstream catalyst substrate configured to facilitate treatment of exhaust gas. The downstream particulate filter positioned downstream of the first downstream catalyst member.

公开(公告)号：US20240269611A1

公开(公告)日：2024-08-15

申请号：US18437280

申请日：2024-02-09

申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY

发明人： Silvia ALCOVE CLAVE ,  Jillian COLLIER ,  Veselina Mihaylova GEORGIEVA ,  Alexander Nicholas Michael GREEN ,  Loredana MANTAROSIE ,  Maria Pia RUGGERI ,  Roberta VILLAMAINA

IPC分类号： B01D53/94 ,  B01J29/68 ,  B01J29/76 ,  B01J35/00 ,  B01J35/57 ,  B01J37/02 ,  B01J37/08 ,  F01N3/20 ,  F01N3/28

CPC分类号： B01D53/9418 ,  B01D53/9436 ,  B01D53/9472 ,  B01D53/9477 ,  B01J29/68 ,  B01J29/763 ,  B01J35/19 ,  B01J35/57 ,  B01J37/0201 ,  B01J37/0236 ,  B01J37/08 ,  F01N3/2066 ,  F01N3/2803 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2255/20723 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/9032 ,  B01D2255/9155 ,  B01D2257/402 ,  B01D2257/404 ,  B01D2257/406 ,  B01D2258/012 ,  B01D2258/016 ,  F01N2370/04 ,  F01N2610/02

摘要： Provided is an SCR catalyst article comprising a substrate having thereon a second catalyst composition downstream of a first catalyst composition, wherein the first and second catalyst compositions are different and wherein the first catalyst composition is an SCR catalyst composition and the second catalyst composition comprises an Fe-loaded small- or medium-pore molecular sieve, the small- or medium-pore molecular sieve having a silica-to-alumina ratio (SAR) of from 6 to 19.

公开(公告)号：US20240183299A1

公开(公告)日：2024-06-06

申请号：US18528551

申请日：2023-12-04

申请人： Purem GmbH

发明人： Silas Bräuning ,  Wolfgang Datz ,  Markus Henzler ,  Oleksandr Velyaev ,  Tobias Wolf ,  Arthur Wieland

IPC分类号： F01N3/20 ,  B01D53/94 ,  B01F25/30 ,  B01F25/431 ,  F01N3/28 ,  F01N13/00

CPC分类号： F01N3/2033 ,  B01D53/9418 ,  B01D53/9436 ,  B01D53/944 ,  B01F25/30 ,  B01F25/431 ,  F01N3/2066 ,  F01N3/2892 ,  F01N13/009 ,  B01D2251/2067 ,  B01D2251/208 ,  B01D2257/404 ,  B01D2257/406 ,  B01D2258/012 ,  F01N2610/02 ,  F01N2610/03

摘要： An exhaust-gas treatment arrangement for an exhaust-gas system of a combustion engine has a first exhaust-gas treatment unit and, downstream thereof, an exhaust-gas treatment assembly. The treatment unit and the treatment assembly are arranged axially one after the other in the direction of a flow-path longitudinal axis of a flow path including the treatment unit and the treatment assembly. A hydrocarbon introducer for introducing hydrocarbon into exhaust gas flowing in the flow path is in the flow path substantially axially between the treatment unit and the treatment assembly. The hydrocarbon introducer includes an introduction ring flow channel annularly surrounding the flow-path longitudinal axis. The channel is open in an upstream end region toward an outlet region of the treatment unit and is open in a downstream end region toward an inlet region of the treatment assembly. The hydrocarbon introduction assembly includes a discharging unit for discharging hydrocarbon into the channel.

公开(公告)号：US20240060441A1

公开(公告)日：2024-02-22

申请号：US18032839

申请日：2021-10-22

申请人： BASF CORPORATION

发明人： Matthew T. Caudle ,  Stanley A. Roth

IPC分类号： F01N3/28 ,  B01J23/80 ,  B01J23/83 ,  B01J35/02 ,  B01J35/00 ,  B01J35/10 ,  B01J35/04 ,  B01J23/89 ,  B01J37/02 ,  B01J23/42 ,  B01D53/94 ,  F01N3/10 ,  F01N3/20 ,  F01N3/035 ,  H05B6/10

CPC分类号： F01N3/2828 ,  B01J23/80 ,  B01J23/83 ,  B01J35/023 ,  B01J35/0033 ,  B01J35/1014 ,  B01J35/1009 ,  B01J35/04 ,  B01J23/8953 ,  B01J37/0201 ,  B01J23/42 ,  B01D53/9436 ,  F01N3/101 ,  F01N3/2026 ,  F01N3/106 ,  F01N3/035 ,  H05B6/108 ,  B01D2255/1021 ,  B01D2257/406 ,  B01D2258/012 ,  B01D2255/9155 ,  B01D2255/9207 ,  B01D2255/9202 ,  F01N2370/04 ,  F01N2510/068 ,  F01N2330/06

摘要： The present disclosure provides a catalyst composition comprising a catalytically active platinum group metal (PGM) component disposed on or impregnated in a magnetic ferrite support material, wherein the magnetic ferrite support material is capable of inductive heating in response to an applied alternating electromagnetic field. Further provided are catalyst articles comprising such compositions, and components comprising such catalyst articles, and further comprising a conductor associated with the catalyst article for receiving current and generating an alternating electromagnetic field in response thereto, wherein the conductor is positioned such that the generated alternating electromagnetic field is applied to at least a portion of the catalyst composition, inductively heating the catalyst composition directly at the catalytic site. Also provided are exhaust gas treatment systems including such components and/or articles, and methods of treating emissions utilizing such components and systems.

公开(公告)号：US11779906B2

公开(公告)日：2023-10-10

申请号：US17594773

申请日：2020-04-27

申请人： BASF Corporation

发明人： Robert Dorner

IPC分类号： B01J23/44 ,  B01J23/30 ,  B01J35/04 ,  B01J21/06 ,  B01J29/76 ,  B01J23/22 ,  B01J23/42 ,  B01D53/94 ,  F01N3/20 ,  F01N3/28 ,  F01N13/00

CPC分类号： B01J23/44 ,  B01D53/944 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/9436 ,  B01D53/9477 ,  B01J21/063 ,  B01J21/066 ,  B01J23/22 ,  B01J23/30 ,  B01J23/42 ,  B01J29/763 ,  B01J35/04 ,  F01N3/2066 ,  F01N3/2803 ,  F01N13/0093 ,  B01D2255/1023 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/20723 ,  B01D2255/50 ,  B01D2255/902 ,  B01D2255/904 ,  F01N2370/04 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/1453

摘要： The present disclosure relates to an exhaust gas treatment system for treating an exhaust gas stream leaving an internal combustion engine, wherein said exhaust gas treatment system comprises (i) a first catalyst comprising a coating and a first substrate, wherein the coating comprises a vanadium oxide supported on a first oxidic support comprising titanium; (ii) a hydrocarbon injector for injecting a fluid comprising hydrocarbons into the exhaust gas stream exiting the outlet end of the first catalyst according to (i); (iii) a second catalyst comprising a coating and a second substrate, wherein the coating comprises palladium on a second oxidic support comprising one or more of zirconium, silicon, aluminum and titanium.

公开(公告)号：US20180272318A1

公开(公告)日：2018-09-27

申请号：US15764038

申请日：2016-09-12

申请人： The Chugoku Electric Power Co., Inc. ,  Tokyo Metropolitan University

发明人： Eiji KIYONAGA ,  Kenji HIKINO ,  Keiichiro MORITA ,  Masatake HARUTA ,  Toru MURAYAMA ,  Makoto MINO

IPC分类号： B01J23/22 ,  B01J35/10 ,  B01J37/08 ,  B01D53/94 ,  F01N3/20

CPC分类号： F01N3/2842 ,  B01D53/8628 ,  B01D53/90 ,  B01D53/9418 ,  B01D53/9436 ,  B01D53/96 ,  B01D2251/206 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/9207 ,  B01D2258/012 ,  B01D2259/4566 ,  B01J23/22 ,  B01J23/92 ,  B01J35/002 ,  B01J35/1014 ,  B01J37/0009 ,  B01J37/0219 ,  B01J37/036 ,  B01J37/08 ,  B01J37/082 ,  B01J37/088 ,  B01J38/02 ,  B01J38/485 ,  B01J38/64 ,  B01J38/66 ,  F01N3/0205 ,  F01N3/021 ,  F01N3/2066 ,  F01N3/208 ,  F01N3/28 ,  F01N3/2803 ,  F01N5/02 ,  F01N13/009 ,  F01N2330/00 ,  F01N2330/06 ,  F01N2330/08 ,  F01N2330/42 ,  F01N2370/02 ,  F01N2510/068 ,  F01N2570/14 ,  F01N2590/02 ,  F01N2610/02 ,  Y02T10/16

摘要： There is provided a catalyst that exhibits a high denitration efficiency at a relatively low temperature and does not cause oxidation of SO2 in a selective catalytic reduction reaction that uses ammonia as a reducing agent. A denitration catalyst contains 3.3 wt % or more of vanadium oxide in terms of vanadium pentoxide and has a BET specific surface area of 10 m2/g or more.

公开(公告)号：US10060845B2

公开(公告)日：2018-08-28

申请号：US15462260

申请日：2017-03-17

申请人： Cummins Inc.

发明人： Aleksey Yezerets ,  Z. Gerald Liu ,  Krishna Kamasamudram ,  Neal W. Currier

IPC分类号： B01D53/56 ,  G01N15/08 ,  B01D53/94 ,  B01D46/42 ,  B01D46/00 ,  B01J35/04 ,  B01J23/22 ,  G01L19/08 ,  F01N3/20 ,  F01N3/021 ,  F01N11/00

CPC分类号： G01N15/0826 ,  B01D46/0086 ,  B01D46/42 ,  B01D53/9418 ,  B01D53/9436 ,  B01D53/944 ,  B01D53/9445 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2255/2022 ,  B01D2255/2027 ,  B01D2255/20723 ,  B01D2255/2092 ,  B01D2255/904 ,  B01D2258/012 ,  B01J23/22 ,  B01J35/04 ,  F01N3/021 ,  F01N3/035 ,  F01N3/106 ,  F01N3/2066 ,  F01N3/208 ,  F01N3/36 ,  F01N11/002 ,  F01N13/009 ,  F01N2250/02 ,  F01N2370/02 ,  F01N2560/08 ,  F01N2610/02 ,  F01N2900/1616 ,  G01L19/08 ,  G01N2015/084 ,  Y02T10/24 ,  Y02T10/47

摘要： System and methods for reducing secondary emissions in an exhaust stream from an internal combustion engine are disclosed. The systems and methods include a filtration device positioned downstream from an SCR catalyst of an aftertreatment system disposed in the exhaust system. The filtration device can also be used for particulate filter diagnostics and for treatment of ammonia slip.

公开(公告)号：US20180221860A1

公开(公告)日：2018-08-09

申请号：US15947112

申请日：2018-04-06

申请人： Johnson Matthey Public Limited Company

发明人： Mikael Larsson

IPC分类号： B01J29/76 ,  F01N13/00 ,  B01J29/78 ,  B01J29/74 ,  B01J37/02 ,  F01N3/28 ,  F01N3/20 ,  F01N3/10 ,  B01J35/04 ,  B01D53/94 ,  B01J35/00 ,  B01J23/648 ,  B01J21/04 ,  B01J23/44

CPC分类号： B01J29/763 ,  B01D53/9418 ,  B01D53/9436 ,  B01D53/944 ,  B01D53/9472 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/20723 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/9022 ,  B01D2255/9032 ,  B01D2255/9037 ,  B01D2255/915 ,  B01J21/04 ,  B01J23/44 ,  B01J23/6482 ,  B01J29/743 ,  B01J29/783 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0244 ,  B01J37/0246 ,  B01J2229/18 ,  B01J2229/186 ,  B01J2229/36 ,  F01N3/106 ,  F01N3/2066 ,  F01N3/2828 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2330/06 ,  F01N2370/04 ,  F01N2510/0684 ,  F01N2570/14 ,  F01N2570/18 ,  Y02A50/2344 ,  Y02T10/24

摘要： Catalyst articles having a first zone containing a first SCR catalyst and a second zone containing an ammonia slip catalyst (ASC), where the ammonia slip catalyst contains a second SCR catalyst and an oxidation catalyst, and the ASC has DOC functionality, where the first zone is located on the inlet side of the substrate and the second zone is located in the outlet side of the substrate are disclosed. The catalytic articles are useful for selective catalytic reduction (SCR) of NOx in exhaust gases, in reducing the amount of ammonia slip and in oxidizing organic residues. Exhaust systems containing the catalyst articles and methods of using the catalytic articles in an SCR process, where the amount of ammonia slip is reduced and hydrocarbon are oxidized by the ASC catalyst, are also described.

公开(公告)号：US20180112583A1

公开(公告)日：2018-04-26

申请号：US15673766

申请日：2017-08-10

申请人： NGK INSULATORS, LTD.

发明人： Taku OKAMOTO ,  Yoshinobu NAKADA ,  Kosuke MONNA

IPC分类号： F01N13/00 ,  G01N27/406 ,  G01N27/407 ,  B01D53/94 ,  F01N3/20

CPC分类号： F01N13/008 ,  B01D53/30 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/9436 ,  B01D53/944 ,  B01D53/9477 ,  B01D2255/904 ,  F01N3/021 ,  F01N3/103 ,  F01N3/106 ,  F01N3/2066 ,  F01N13/009 ,  F01N2560/02 ,  F01N2560/023 ,  F01N2560/025 ,  F01N2560/20 ,  F01N2570/18 ,  F01N2610/02 ,  G01N27/4067 ,  G01N27/4074 ,  G01N27/4075 ,  G01N27/4077 ,  G01N27/419

摘要： A apparatus 70 for measuring combustible-gas concentration includes an electromotive force acquisition section 75 configured to acquire information about an electromotive force of a mixed potential cell 55 while a detection electrode 51 is exposed to a target gas, an oxygen concentration acquisition section 76 configured to acquire information about oxygen concentration pO2 in the target gas, and a control section 72. The control section 72 derives combustible-gas concentration pTHC in the target gas from the acquired information about the electromotive force EMF, the acquired information about the oxygen concentration pO2, and the relationship represented by formula (1): EMF=α loga(pTHC)−β logb(pO2)+B  (1) where α, β, and B each represent a constant, and a and b each represent any base (provided that a≠1, a>0, b≠1, and b>0).

公开(公告)号：US09943830B2

公开(公告)日：2018-04-17

申请号：US14341890

申请日：2014-07-28

申请人： Johnson Matthey Public Limited Company

发明人： David Micallef ,  Alex Parsons

IPC分类号： B01J21/20 ,  B01J23/54 ,  B01D53/94 ,  B01J38/02 ,  B01J23/02 ,  B01J35/00 ,  B01J23/38 ,  B01J21/06 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  B01J23/96

CPC分类号： B01J23/54 ,  B01D53/9418 ,  B01D53/9436 ,  B01D53/9468 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/104 ,  B01D2255/106 ,  B01D2255/20707 ,  B01D2255/20776 ,  B01D2257/406 ,  B01D2258/01 ,  B01J21/063 ,  B01J23/38 ,  B01J23/42 ,  B01J23/44 ,  B01J23/464 ,  B01J23/96 ,  B01J35/0006 ,  B01J38/02

摘要： A catalyst article for treating an emission gas is provided comprising (a) an oxidation catalyst comprising at least one noble metal on a WO3—TiO2 support, wherein the support contains about 1 to about 20 weight percent WO3 based on the combined weight of the WO3 and TiO2; and (b) a substrate, wherein the first and second catalyst layers are on and/or within the substrate.