公开(公告)号：US11772075B2

公开(公告)日：2023-10-03

申请号：US17870347

申请日：2022-07-21

Applicant: Umicore AG & Co. KG

Inventor： Kim Hougaard Pedersen ,  Anders Hjordt Pedersen ,  Martin Dam

IPC: B01J23/22 ,  B01J21/16 ,  B01J35/02 ,  B01J37/02 ,  B01J37/03 ,  B01J37/08 ,  B01D53/94 ,  F01N3/20 ,  F01N3/28

CPC classification number: B01J23/22 ,  B01D53/9418 ,  B01J21/16 ,  B01J35/023 ,  B01J37/0219 ,  B01J37/0244 ,  B01J37/038 ,  B01J37/088 ,  F01N3/2066 ,  F01N3/2835 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/20769 ,  B01D2255/20776 ,  B01D2255/65 ,  B01D2255/9202 ,  F01N2330/10 ,  F01N2370/02 ,  F01N2510/06

Abstract: The present invention pertains to a catalyst for use in the selective catalytic reduction (SCR) of nitrogen oxides comprising a monolithic substrate and a coating A, which comprises an oxidic metal carrier comprising an oxide of titanium and a catalytic metal oxide which comprises an oxide of vanadium wherein the mass ratio vanadium/titanium is 0.07 to 0.26.

公开(公告)号：US11679379B2

公开(公告)日：2023-06-20

申请号：US17734702

申请日：2022-05-02

Applicant: Koji Sugiura ,  Takeshi Hirabayashi ,  Akemi Satou ,  Keisuke Murawaki ,  Takaya Ota ,  Masatoshi Ikebe ,  Kohei Takasaki ,  Takeshi Morishima

Inventor： Koji Sugiura ,  Takeshi Hirabayashi ,  Akemi Satou ,  Keisuke Murawaki ,  Takaya Ota ,  Masatoshi Ikebe ,  Kohei Takasaki ,  Takeshi Morishima

IPC: B01J35/00 ,  B01J35/04 ,  F01N3/28 ,  B01D53/94

CPC classification number: B01J35/0006 ,  B01D53/94 ,  B01J35/04 ,  F01N3/2828 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/407 ,  B01D2255/9022 ,  B01D2255/9205 ,  F01N2330/06 ,  F01N2330/48 ,  F01N2370/02 ,  F01N2510/06

Abstract: The exhaust gas purification device includes a substrate, a first catalyst layer, and a second catalyst layer. The substrate includes an upstream end, a downstream end, and a porous partition wall defining a plurality of cells extending between the upstream end and the downstream end. The plurality of cells include an inlet cell opening at the upstream end and sealed at the downstream end, and an outlet cell adjacent to the inlet cell sealed at the upstream end and opening at the downstream end. The first catalyst layer is disposed on a surface of the partition wall in an upstream region. In a downstream region, the second catalyst layer is disposed inside the partition wall, and a second catalyst-containing wall including the partition wall and the second catalyst layer has a porosity of 35% or more.

公开(公告)号：US20190078477A1

公开(公告)日：2019-03-14

申请号：US16128694

申请日：2018-09-12

Applicant: HONDA MOTOR CO., LTD.

Inventor： Yoshiaki Hatakeyama

IPC: F01N3/021 ,  F01N3/022 ,  F01N3/035 ,  B01D53/94 ,  B01D46/00 ,  B01D46/24 ,  B01J35/04

CPC classification number: F01N3/0211 ,  B01D46/0027 ,  B01D46/2422 ,  B01D46/2455 ,  B01D53/945 ,  B01D53/9454 ,  B01D2255/915 ,  B01D2255/9155 ,  B01D2265/04 ,  B01D2279/30 ,  B01J35/04 ,  F01N3/0222 ,  F01N3/035 ,  F01N2330/06 ,  F01N2330/30 ,  F01N2510/06

Abstract: An exhaust gas purifying device includes: a columnar honeycomb carrier provided in an exhaust channel; a tubular case member housing the honeycomb carrier; and a retaining member surrounding the outer circumference of the honeycomb carrier. The honeycomb carrier has, in the outer circumferential edge of an inlet-side end face and an outlet-side end face, respectively, sloped surfaces sloped toward a direction in which the length in the center axis direction of the honeycomb carrier decreases. Of the retaining member, ends in the center axis direction of the honeycomb carrier extend to the sloped surfaces of the honeycomb carrier, and the ends have tapered parts which are longer in the center axis direction of the honeycomb carrier on the side facing the case member than on the side facing the honeycomb carrier.

公开(公告)号：US20180361359A1

公开(公告)日：2018-12-20

申请号：US15780736

申请日：2016-10-31

Applicant: HEESUNG CATALYSTS CORPORATION

Inventor： Hyun-sik Han ,  Eun-seok Kim ,  Jae-Uk Han ,  Hyoung-Mun Cho

IPC: B01J23/40 ,  F01N3/035

CPC classification number: B01J23/40 ,  B01J23/34 ,  B01J2523/18 ,  B01J2523/31 ,  B01J2523/72 ,  B01J2523/824 ,  B01J2523/828 ,  B01J2523/842 ,  F01N3/035 ,  F01N3/106 ,  F01N13/009 ,  F01N2510/06 ,  F01N2510/063 ,  F01N2570/04

Abstract: The present invention relates to diesel oxidation catalyst (DOC) and diesel particulate filter (DPF) catalyst compositions, used for a smoke reduction apparatus, for inhibiting white smoke generated from a diesel engine and, more specifically, to a DOC, enabling minimization of sulphate adsorption, a DPF catalyst, enabling a sulphate desorption delay, and a smoke reduction apparatus having the DOC and DPF catalyst assembled therein. The diesel particulate filter catalyst composition, which is applied to the DPF, comprises oxide components selected from oxide components comprising manganese oxide and silver oxide.

公开(公告)号：US10012124B2

公开(公告)日：2018-07-03

申请号：US14746397

申请日：2015-06-22

Applicant: VOLVO CAR CORPORATION

Inventor： Peter Sandberg ,  Marie Stenfeldt

IPC: F01N3/28 ,  B01D53/94 ,  F01N3/20 ,  F01N13/00 ,  F01N3/10

CPC classification number: F01N3/2892 ,  B01D53/9477 ,  B01D2255/904 ,  F01N3/108 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/0097 ,  F01N2240/20 ,  F01N2470/24 ,  F01N2490/06 ,  F01N2510/06 ,  F01N2610/1453 ,  Y02A50/2325 ,  Y02T10/24

Abstract: An exhaust gas aftertreatment device for an internal combustion engine comprises a housing, first and second catalytic substrates arranged inside the housing such that the first catalytic substrate is arranged upstream of the second catalytic substrate, and a reductant injector arranged in between the first and second catalytic substrates. Further, the first and second catalytic substrates are arranged such that a fluid flow direction through the exhaust gas aftertreatment device is angled. A flow redirecting wall is arranged downstream of the first catalytic substrate such that the fluid flow between the first and second catalytic substrates at least partially passes an outer circumference of the first catalytic substrate before reaching the second catalytic substrate. The redirecting wall is inclined to an outlet surface of the first catalytic substrate and the reductant injector is arranged at the redirecting wall at a position distant from the outlet surface.

公开(公告)号：US20180078926A1

公开(公告)日：2018-03-22

申请号：US15712271

申请日：2017-09-22

Applicant: Johnson Matthey Public Limited Company

Inventor： Hai-Ying CHEN ,  Kevin DOURA ,  Joseph FEDEYTKO ,  Janet FISHER ,  John KILMARTIN

IPC: B01J23/89 ,  B01J23/46 ,  B01J21/06 ,  B01J21/12 ,  B01J23/42 ,  B01D53/94

CPC classification number: B01J23/8926 ,  B01D53/9418 ,  B01D53/9436 ,  B01D53/944 ,  B01D2251/2062 ,  B01D2255/1021 ,  B01D2255/1026 ,  B01D2255/20715 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/9022 ,  B01D2255/9032 ,  B01D2255/904 ,  B01J21/04 ,  B01J21/063 ,  B01J21/08 ,  B01J21/12 ,  B01J23/42 ,  B01J23/462 ,  B01J23/72 ,  B01J23/745 ,  B01J35/0006 ,  F01N3/103 ,  F01N3/106 ,  F01N3/2066 ,  F01N3/2086 ,  F01N3/28 ,  F01N2510/06 ,  F01N2510/068 ,  F01N2510/0682 ,  F01N2510/0684 ,  F01N2570/145 ,  F01N2570/18 ,  F01N2610/02 ,  Y02A50/2325 ,  Y02A50/2344 ,  Y02C20/10

Abstract: An ammonia slip catalyst (ASC) comprising a first SCR catalyst, an oxidation catalyst comprising ruthenium or a Ru mixture, such as a Pt and Ru mixture, on a support comprising a rutile phase and a substrate is described. In some configurations, the ASC comprises a second oxidation catalyst. In other configurations, the ASC comprises a second oxidation catalyst and a third oxidation catalyst. The ASC's are useful for selective catalytic reduction (SCR) of NOx in exhaust gases and in reducing the amount of ammonia slip. Methods for producing such articles are described. Methods of using the ammonia slip catalyst in an SCR process, where the amount of ammonia slip is reduced, are also described.

公开(公告)号：US09815048B2

公开(公告)日：2017-11-14

申请号：US15482966

申请日：2017-04-10

Applicant: Johnson Matthey Public Limited Company

Inventor： Guy Richard Chandler ,  Alexander Nicholas Michael Green ,  Joanne Elizabeth Melville ,  Paul Richard Phillips ,  Stuart David Reid

IPC: B01J29/06 ,  B01J29/88 ,  B01J29/80 ,  B01J29/76 ,  B01J29/00 ,  B01J35/00 ,  B01J35/04 ,  B01J37/02 ,  B01J37/00 ,  B01D53/94 ,  F01N3/035 ,  F01N3/08 ,  F01N3/20 ,  B01J29/72 ,  B01J29/70 ,  B01J29/78 ,  B01J29/74 ,  B01J29/035 ,  B01D53/56 ,  B01D53/86 ,  B01J37/30

CPC classification number: B01J29/88 ,  B01D53/56 ,  B01D53/8628 ,  B01D53/9413 ,  B01D53/9418 ,  B01D53/9422 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/502 ,  B01D2255/9032 ,  B01D2258/012 ,  B01J29/005 ,  B01J29/0352 ,  B01J29/0354 ,  B01J29/0356 ,  B01J29/0358 ,  B01J29/072 ,  B01J29/46 ,  B01J29/70 ,  B01J29/7007 ,  B01J29/7049 ,  B01J29/7065 ,  B01J29/72 ,  B01J29/7215 ,  B01J29/723 ,  B01J29/74 ,  B01J29/7415 ,  B01J29/743 ,  B01J29/76 ,  B01J29/7615 ,  B01J29/763 ,  B01J29/78 ,  B01J29/7815 ,  B01J29/783 ,  B01J29/80 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0009 ,  B01J37/0215 ,  B01J37/0244 ,  B01J37/0246 ,  B01J37/08 ,  B01J37/30 ,  B01J2029/062 ,  F01N3/035 ,  F01N3/0842 ,  F01N3/105 ,  F01N3/2066 ,  F01N13/009 ,  F01N2330/06 ,  F01N2370/04 ,  F01N2510/06 ,  Y02A50/2325 ,  Y02C20/10 ,  Y02T10/24

Abstract: A heterogeneous catalyst article having at least one combination of a first molecular sieve having a medium pore, large pore, or meso-pore crystal structure and optionally containing a first metal, and a second molecular sieve having a small pore crystal structure and optionally containing a second metal, and a monolith substrate onto or within which said catalytic component is incorporated, wherein the combination of the first and second molecular sieves is a blend, a plurality of layers, and/or a plurality of zones.

公开(公告)号：US20170315106A1

公开(公告)日：2017-11-02

申请号：US15520708

申请日：2014-10-27

Applicant: Cummins Emission Solutions, Inc.

Inventor： Behnam Bahrami

IPC: G01N33/00 ,  F01N3/20 ,  B01D53/94 ,  B01J37/00 ,  C04B35/48 ,  F01N13/00 ,  F01N3/10 ,  G01N27/02 ,  B01J37/02

CPC classification number: G01N33/0037 ,  B01D53/9418 ,  B01D53/9495 ,  B01J37/0009 ,  B01J37/0215 ,  C04B35/48 ,  C04B2235/3225 ,  F01N3/106 ,  F01N3/2006 ,  F01N3/2066 ,  F01N13/008 ,  F01N2510/00 ,  F01N2510/06 ,  F01N2560/026 ,  F01N2570/18 ,  G01N27/02 ,  G01N33/0004 ,  Y02A50/245 ,  Y02T10/24

Abstract: An improved NOx sensor with an NH3 oxidation catalyst. A sensor module may include a support component, a NOx sensing material positioned on the support component, and an NH3 oxidation catalyst. The NH3 oxidation catalyst may be layered on top of the NOx sensing material or the NH3 oxidation catalyst may be positioned upstream of the NOx sensing material such that the NH3 oxidation catalyst selectively converts NH3 to N2 while permitting NOx through to the NOx sensing material.

公开(公告)号：US20170284262A1

公开(公告)日：2017-10-05

申请号：US15631812

申请日：2017-06-23

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： TODD HOWARD BALLINGER ,  HAI-YING CHEN ,  JULIAN PETER COX ,  SHADAB SHARIF MULLA ,  JEFFREY SCOTT RIECK ,  ERICH CONLAN WEIGERT

IPC: F01N3/28 ,  B01J23/10 ,  B01J35/00 ,  F01N3/10 ,  B01J37/02 ,  B01D53/94 ,  F01N3/20 ,  B01J23/44 ,  B01J35/04

CPC classification number: F01N3/2803 ,  B01D53/944 ,  B01D53/9477 ,  B01D2255/1023 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/407 ,  B01D2255/904 ,  B01D2257/502 ,  B01J23/10 ,  B01J23/44 ,  B01J23/63 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0215 ,  B01J37/0244 ,  B01J37/0246 ,  B01J37/0248 ,  F01N3/101 ,  F01N3/2066 ,  F01N2370/02 ,  F01N2510/06 ,  Y02A50/2341 ,  Y02T10/22

Abstract: A CO slip catalyst, for treating an exhaust gas from a lean burn internal combustion engine, is disclosed. The CO slip catalyst comprises palladium and a ceria-containing material. The invention also includes a method for oxidizing excess CO in an exhaust gas, wherein the excess CO results from the periodic contact of an upstream catalyst under rich exhaust conditions. The method comprises contacting the excess CO in the exhaust gas with a CO slip catalyst at a temperature in the range of 100 to 700° C.

公开(公告)号：US09737907B2

公开(公告)日：2017-08-22

申请号：US14430950

申请日：2012-09-28

Applicant: Faurecia Emissions Control Technologies, USA, LLC

Inventor： Jerome Brian Hornback ,  Chris Chapman

IPC: B01D50/00 ,  B05D5/08 ,  F01N3/20 ,  F01N3/24 ,  F01N13/10 ,  F01N3/035 ,  F01N13/00 ,  B01D53/92 ,  B01F3/04 ,  B01F5/06 ,  B01F15/00 ,  F01N3/28 ,  F01N13/16 ,  B05D1/02 ,  B05D7/22 ,  B21D22/02 ,  B01F5/00

CPC classification number: B05D5/08 ,  B01D53/90 ,  B01D53/92 ,  B01D53/9418 ,  B01D53/944 ,  B01D2258/012 ,  B01D2259/124 ,  B01F3/04021 ,  B01F3/04049 ,  B01F5/0606 ,  B01F5/0615 ,  B01F15/00844 ,  B01F2005/0097 ,  B05D1/02 ,  B05D7/22 ,  B21D22/02 ,  F01N3/035 ,  F01N3/2066 ,  F01N3/24 ,  F01N3/2892 ,  F01N13/009 ,  F01N13/10 ,  F01N13/16 ,  F01N2240/20 ,  F01N2510/06 ,  F01N2610/00 ,  F01N2610/02 ,  F01N2610/1453 ,  Y02A50/2325 ,  Y02T10/24

Abstract: A vehicle exhaust system includes a mixer having an inlet that receives engine exhaust gases and an outlet to direct swirling engine exhaust gas to a downstream exhaust component. The mixer has a plurality of internal surfaces that come into contact with the engine exhaust gases. At least one of the internal surfaces has a coating comprised of a low-coefficient of friction material.