公开(公告)号：US20180258816A1

公开(公告)日：2018-09-13

申请号：US15736659

申请日：2016-10-04

Applicant: NIPPON STEEL & SUMIKIN MATERIALS CO., LTD.

Inventor： Tooru INAGUMA ,  Shinji KAWASOE ,  Yasuhiro TSUMURA ,  Shogo KONYA ,  Masayuki KASUYA ,  Masafumi OMIZU

IPC: F01N3/28 ,  B01J21/04 ,  B01J23/86 ,  B01J35/04 ,  B01D53/94

CPC classification number: F01N3/2814 ,  B01D53/94 ,  B01D53/9418 ,  B01D53/944 ,  B01J21/04 ,  B01J23/745 ,  B01J23/86 ,  B01J23/862 ,  B01J32/00 ,  B01J35/04 ,  F01N3/28 ,  F01N2330/02 ,  F01N2370/02 ,  F01N2510/00

Abstract: A base for supporting a catalyst for exhaust gas purification, the base including a honeycomb structure obtained by superposing a metallic flat foil and a metallic wavy foil, characterized in that the wavy foil has offset portions where any adjoining two of the wave phases arranged in the axial direction of the honeycomb structure are offset from each other. The base is further characterized in that an oxide coating film has been formed in a given range of these offset portions which includes exposed edge surfaces that are exposed on the gas-inlet side, that the oxide coating film includes 30-99.9 mass % first alumina, with the remainder comprising at least one of second aluminas, Fe oxides, and Cr oxides, that the first alumina comprises α-alumina, that the second aluminas comprise one or more of γ-, θ-, χ-, δ-, η-, and κ-aluminas.

公开(公告)号：US10071368B2

公开(公告)日：2018-09-11

申请号：US15550252

申请日：2016-02-16

Applicant: CATALER CORPORATION

Inventor： Ryota Onoe ,  Shingo Sakagami ,  Yasutaka Nomura ,  Yuta Morishita ,  Junji Kuriyama ,  Hiroshi Sekine

IPC: B01J23/10 ,  B01J23/44 ,  B01J23/46 ,  B01J23/63 ,  B01J35/00 ,  B01J35/04 ,  B01D53/94 ,  F01N13/08 ,  F01N3/28

CPC classification number: B01J35/0006 ,  B01D53/94 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/9022 ,  B01D2255/9155 ,  B01J23/63 ,  B01J35/04 ,  B01J37/02 ,  F01N3/035 ,  F01N3/10 ,  F01N3/24 ,  F01N3/28 ,  F01N13/08 ,  F01N2250/02 ,  F01N2260/06 ,  F01N2370/02 ,  F01N2510/068 ,  F01N2510/0682 ,  F01N2510/0684

Abstract: An exhaust gas purification catalyst capable of stably maintaining and exhibiting excellent catalytic performance includes a wall-flow-type substrate, a first catalytic layer and a second catalytic layer. The first catalytic layer is provided to an internal portion of a partition wall in contact with an entrance cell. The second catalytic layer is provided to an internal portion of a partition wall in contact with an exit cell. The ratio (D2/D1) of the coating density D2 of the second catalytic layer to the coating density D1 of the first catalytic layer is 1.01 to 1.4.

公开(公告)号：US10071365B2

公开(公告)日：2018-09-11

申请号：US14761847

申请日：2013-11-26

Applicant: Yuki Aoki ,  Hiromasa Suzuki ,  Hiroyuki Matsubara

Inventor： Yuki Aoki ,  Hiromasa Suzuki ,  Hiroyuki Matsubara

IPC: B01J23/42 ,  B01D53/94 ,  F01N3/24 ,  B01J23/46 ,  B01J35/04 ,  F01N3/28 ,  B01J37/02 ,  B01J23/40 ,  B01J35/00 ,  B01J23/63

CPC classification number: B01J23/42 ,  B01D53/94 ,  B01D2255/10 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/902 ,  B01J23/40 ,  B01J23/464 ,  B01J23/63 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0244 ,  F01N3/2803 ,  F01N2330/48 ,  F01N2510/0682 ,  F01N2510/0684

Abstract: There is provided a catalytic converter that offers high exhaust gas cleaning performance by effectively utilizing a whole catalyst that constitutes the catalytic converter.In a catalytic converter (10), catalytic layers (2A, 2B) made of a noble metal catalyst are formed on cell wall surfaces of a substrate (1) having a cell structure, and the catalytic layers (2A, 2B) extend in a longitudinal direction of the substrate (1) along which gas flows. The substrate (1) has a central region (1A) having a relatively high cell density and a peripheral region (1B) having a relatively low cell density. The length of each of the catalytic layers (2B) in the longitudinal direction in the peripheral region (1B) is longer than the length of each of the catalytic layers (2A) in the longitudinal direction in the central region (1A).

公开(公告)号：US20180243690A1

公开(公告)日：2018-08-30

申请号：US15560772

申请日：2016-03-24

Applicant: Hiromasa SUZUKI ,  Masahide MIURA ,  Yoshinori SAITO ,  Satoru KATOH ,  Toshitaka TANABE ,  Tetsuhiro HIRAO ,  Tatsuya OHASHI ,  Hiroaki NAITO ,  Hirotaka ORI ,  Michihiko TAKEUCHI ,  Keiichi NARITA

Inventor： Hiromasa SUZUKI ,  Masahide MIURA ,  Yoshinori SAITO ,  Satoru KATOH ,  Toshitaka TANABE ,  Tetsuhiro HIRAO ,  Tatsuya OHASHI ,  Hiroaki NAITO ,  Hirotaka ORI ,  Michihiko TAKEUCHI ,  Keiichi NARITA

IPC: B01D53/94 ,  B01J23/56 ,  B01J35/00 ,  B01J35/02 ,  B01J35/04 ,  B01J35/10 ,  B01J37/02 ,  B01J37/08 ,  F01N3/10 ,  F01N3/28

CPC classification number: B01D53/945 ,  B01D53/94 ,  B01D53/9468 ,  B01D53/9472 ,  B01D2255/10 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2063 ,  B01D2255/407 ,  B01D2255/9022 ,  B01D2255/9032 ,  B01D2255/9202 ,  B01D2255/9205 ,  B01J23/56 ,  B01J23/63 ,  B01J35/0006 ,  B01J35/023 ,  B01J35/026 ,  B01J35/04 ,  B01J35/10 ,  B01J35/1076 ,  B01J35/108 ,  B01J37/0018 ,  B01J37/0036 ,  B01J37/0219 ,  B01J37/0234 ,  B01J37/0244 ,  B01J37/08 ,  F01N3/101 ,  F01N3/28 ,  F01N2510/0682 ,  Y02T10/22

Abstract: An object of the present invention is to provide an exhaust gas purification catalyst which can exhibit sufficient purification performance even under a high Ga condition. The present invention relates to an exhaust gas purification catalyst comprising a substrate and a catalyst coating layer formed on the substrate, wherein the catalyst coating layer comprises catalyst particles, the catalyst coating layer having an upstream region extending by 40 to 60% of the entire length of the substrate from an upstream end of the catalyst in the direction of an exhaust gas flow and a downstream region corresponding to the remainder portion of the catalyst coating layer, the composition of the catalyst particle of the upstream region being different from that of the downstream region. The downstream region in the direction of an exhaust gas flow has a structure where a void is included in a large number, and furthermore high-aspect-ratio pores having an aspect ratio of 5 or more account for a certain percentage or more of the whole volume of voids. Thus, the exhaust gas purification catalyst exhibits enhanced purification performance.

公开(公告)号：US10060312B2

公开(公告)日：2018-08-28

申请号：US15207810

申请日：2016-07-12

Applicant: DENSO CORPORATION

Inventor： Takumi Suzawa ,  Yuto Amano ,  Manabu Ohsuka ,  Mikio Ishihara

IPC: F01N3/022 ,  F01N3/08 ,  B01J35/04 ,  B01J23/46

CPC classification number: F01N3/0222 ,  B01J23/464 ,  B01J35/04 ,  F01N3/0821 ,  F01N2250/02 ,  F01N2330/06 ,  F01N2510/0682 ,  F01N2570/10 ,  F01N2570/12 ,  F01N2570/14 ,  Y02T10/20

Abstract: An exhaust gas filter for purifying exhaust gases including particulate matter discharged from an internal combustion engine includes a honeycomb structure whose axial direction matches an exhaust gas flow, a plug portion which selectively plugs upstream end faces of the honeycomb structure which faces the exhaust gas flow, and catalyst carried on the honeycomb structure.The honeycomb structure has a plurality of partition walls and cells surrounded by the partition walls, and pores formed inside partition walls between adjacent cells communicating with each other. The plurality of the cells have open cells which are penetrated in the axial direction and plugged cells having one upstream end which face the exhaust gas flow plugged by the plug portion. The honeycomb structure has a first region which does not carry the catalyst on the partition walls and a second region which carries the catalyst on the partition walls.

公开(公告)号：US20180229224A1

公开(公告)日：2018-08-16

申请号：US15752968

申请日：2016-08-18

Applicant: BASF Corporation ,  N.E. Chemcat Corporation

Inventor： Xiaolai Zheng ,  Michel Deeba ,  Xiaofan Yang ,  Qi Fu ,  Knut Wassermann ,  Makoto Nagata ,  Yasuharu Kanno ,  Hiroki Nakayama

IPC: B01J29/85 ,  B01J29/76 ,  B01J23/755 ,  B01J23/10 ,  B01J23/745 ,  B01J21/06 ,  B01J35/00 ,  B01J35/04 ,  B01J37/30 ,  B01J37/08 ,  B01J37/02 ,  B01D53/94 ,  F01N3/20 ,  F01N3/28 ,  F01N3/10 ,  F01N13/00

CPC classification number: B01J29/85 ,  B01D53/9418 ,  B01D53/9422 ,  B01D53/945 ,  B01D53/9468 ,  B01D53/9472 ,  B01D53/9477 ,  B01D2255/2065 ,  B01D2255/2066 ,  B01D2255/20715 ,  B01D2255/2073 ,  B01D2255/20738 ,  B01D2255/20746 ,  B01D2255/20753 ,  B01D2255/20761 ,  B01D2255/407 ,  B01D2255/50 ,  B01D2255/9022 ,  B01D2255/9032 ,  B01D2255/9155 ,  B01D2258/014 ,  B01J21/066 ,  B01J23/002 ,  B01J23/10 ,  B01J23/63 ,  B01J23/745 ,  B01J23/755 ,  B01J23/83 ,  B01J29/072 ,  B01J29/76 ,  B01J29/763 ,  B01J35/0006 ,  B01J35/04 ,  B01J35/1014 ,  B01J37/0201 ,  B01J37/0236 ,  B01J37/0244 ,  B01J37/0246 ,  B01J37/0248 ,  B01J37/08 ,  B01J37/088 ,  B01J37/30 ,  B01J2229/183 ,  B01J2229/186 ,  B01J2523/00 ,  F01N3/101 ,  F01N3/2066 ,  F01N3/2828 ,  F01N13/0093 ,  F01N2330/06 ,  F01N2610/02 ,  Y02T10/22 ,  Y02T10/24 ,  B01J2523/3706 ,  B01J2523/3712 ,  B01J2523/48 ,  B01J2523/847 ,  B01J2523/17 ,  B01J2523/842 ,  B01J2523/25 ,  B01J2523/31 ,  B01J2523/824 ,  B01J2523/822

Abstract: Described are catalysts effective to abate NOx, hydrocarbons, and carbon monoxide from a gasoline engine exhaust gas. Such catalysts include a substrate having a first and second material disposed thereon, the first material effective to catalyze selective catalytic reduction of nitrogen oxides in the presence of ammonia and the second material effective to abate hydrocarbons and carbon monoxide, the first material comprising a molecular sieve promoted with copper and/or iron in a low loading, the second material comprising at least one oxide of Ni, Fe, Mn, Co, and Cu on a support selected from oxides of Ce, Ce—Zr, Zr, Mn, Pr and combinations thereof. Also described are gasoline engine exhaust gas treatment systems and methods of treating exhaust gas from a gasoline engine.

公开(公告)号：US20180223714A1

公开(公告)日：2018-08-09

申请号：US15517560

申请日：2015-10-08

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Sebastien DONET ,  Aurelie VANDENEYNDE

IPC: F01N3/28 ,  F01N13/14 ,  B01J21/16 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  B01J23/50 ,  B01J27/224 ,  B01J35/04 ,  B01J37/02 ,  B01J37/08

CPC classification number: F01N3/2828 ,  B01D53/944 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/104 ,  B01D2255/9022 ,  B01D2255/9025 ,  B01J21/16 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  B01J23/464 ,  B01J23/50 ,  B01J23/63 ,  B01J27/224 ,  B01J35/04 ,  B01J37/0228 ,  B01J37/0238 ,  B01J37/0244 ,  B01J37/08 ,  F01N3/10 ,  F01N13/14 ,  F01N2330/06 ,  Y02T10/22

Abstract: A device for catalytic conversion of NOx to 8 and/or of CO to CO2, including: a ceramic support including at least a plurality of channels; a thermal barrier made of thermal insulating material covering at least one part of the internal surface of the channels; porous SiC at least partially covering the thermal barrier such that the SiC is separated from the support by the thermal barrier; one or more conversion catalysts at least on the SiC.

公开(公告)号：US20180223711A1

公开(公告)日：2018-08-09

申请号：US15771999

申请日：2015-10-29

Applicant: VOLVO TRUCK CORPORATION ,  Centre national de la recherche scientifique ,  Université Claude Bernard Lyon 1

Inventor： Anne GIROIR-FENDLER ,  Sonia GIL VILLARINO ,  Eduard Emil IOJOIU

IPC: F01N3/035 ,  B01D53/94 ,  B01J29/40 ,  B01J29/70 ,  B01J29/08 ,  B01J29/60 ,  B01J35/04 ,  B01J35/10 ,  B01J37/02 ,  B01J29/85 ,  B01J35/02 ,  F01N3/20 ,  F01N3/28

CPC classification number: F01N3/035 ,  B01D53/9418 ,  B01D53/944 ,  B01D2255/50 ,  B01D2255/502 ,  B01D2255/504 ,  B01D2255/9155 ,  B01D2255/9202 ,  B01D2255/9205 ,  B01J29/08 ,  B01J29/10 ,  B01J29/40 ,  B01J29/42 ,  B01J29/60 ,  B01J29/61 ,  B01J29/7007 ,  B01J29/7015 ,  B01J29/7207 ,  B01J29/7215 ,  B01J29/723 ,  B01J29/85 ,  B01J35/0006 ,  B01J35/023 ,  B01J35/04 ,  B01J35/10 ,  B01J35/1057 ,  B01J35/1061 ,  B01J35/1066 ,  B01J37/0215 ,  B01J37/10 ,  B01J2229/64 ,  B01J2229/66 ,  F01N3/2066 ,  F01N3/2828 ,  F01N2330/06 ,  F01N2330/30 ,  F01N2370/04 ,  F01N2510/063 ,  Y02A50/2325 ,  Y02C20/10 ,  Y02T10/24

Abstract: Disclosed is a reactive filter, that is a selective catalytic reduction filter or an oxidative reaction filter, including a porous substrate including internal pores having their inner surface, totally or partially, directly coated with a catalytic zeolite material resulting from an in situ hydrothermal synthesis. Also disclosed is a process for preparing such a reactive filter and the use thereof in an engine exhaust depolluting system.

公开(公告)号：US10035142B2

公开(公告)日：2018-07-31

申请号：US15437634

申请日：2017-02-21

Applicant: NGK INSULATORS, LTD.

Inventor： Makoto Teranishi ,  Yasushi Kato ,  Junki Matsuya ,  Takahiro Honda ,  Takahiro Kondo

IPC: B01J21/04 ,  B01J35/04 ,  B01D46/24 ,  B01D53/94 ,  F01N3/20 ,  F01N3/28 ,  B01J23/02

CPC classification number: B01J35/04 ,  B01D46/247 ,  B01D46/2474 ,  B01D53/9413 ,  B01D53/9418 ,  B01D2046/2437 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/504 ,  B01D2255/915 ,  B01D2255/9155 ,  B01D2255/9205 ,  B01D2258/012 ,  B01J35/002 ,  F01N3/021 ,  F01N3/0222 ,  F01N3/035 ,  F01N3/2066 ,  F01N3/2842 ,  F01N2260/06 ,  F01N2330/30 ,  F01N2330/48 ,  Y02A50/2325 ,  Y02T10/24

Abstract: The honeycomb structure includes a honeycomb structure body having porous partition walls, and a plugging portion disposed in one of open ends of each cell, a thickness of the partition walls is 0.30 mm or more and 0.51 mm or less, a cell density is 30 cells/cm2 or more and 93 cells/cm2 or less, a filtration area (cm2) of inflow cells included per cm3 of the honeycomb structure body is defined as an inflow side filtration area G (cm2/cm3), a value obtained by dividing a pore volume Vp (cm3) formed in the partition walls by a total volume Va (L) including the cells is defined as a pore volume ratio A (cm3/L), and in this case, a product of the inflow side filtration area G (cm2/cm3) and the pore volume ratio A (cm3/L) is 1800 cm2/L or more and 3200 cm2/L or less.

公开(公告)号：US20180195428A1

公开(公告)日：2018-07-12

申请号：US15741610

申请日：2016-07-06

Applicant: HALDOR TOPSØE A/S

Inventor： Keld JOHANSEN ,  Ton V.W. JANSSENS

IPC: F01N13/00 ,  F01N3/035 ,  F01N3/10 ,  F01N3/20 ,  F01N3/28 ,  B01J23/42 ,  B01J23/30 ,  B01J35/04 ,  B01D53/94

CPC classification number: F01N13/009 ,  B01D53/9418 ,  B01D53/9436 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/20776 ,  B01D2255/30 ,  B01D2255/9022 ,  B01J23/30 ,  B01J23/42 ,  B01J35/04 ,  F01N3/035 ,  F01N3/101 ,  F01N3/103 ,  F01N3/105 ,  F01N3/2066 ,  F01N3/208 ,  F01N3/2842 ,  F01N13/0093 ,  F01N2510/06 ,  F01N2610/02 ,  Y02T10/22 ,  Y02T10/24

Abstract: System for the removal of noxious compounds and particulate matter from exhaust gas of a compression ignition engine comprising a three way catalyst unit having an NH3-SCR activity, an ammonia oxidation activity and an adsorption activity of volatile vanadium and tungsten compounds volatilized off an upstream SCR active catalyst.