公开(公告)号：US12053768B2

公开(公告)日：2024-08-06

申请号：US17270125

申请日：2019-07-30

申请人： BASF CORPORATION

发明人： Yuejin Li

IPC分类号： B01J37/02 ,  B01J21/12 ,  B01J23/42 ,  B01J29/76 ,  B01J35/00 ,  B01J35/56 ,  F01N3/08 ,  F01N3/20 ,  F01N3/28

CPC分类号： B01J37/0244 ,  B01J21/12 ,  B01J23/42 ,  B01J29/763 ,  B01J35/19 ,  B01J35/56 ,  F01N3/0842 ,  F01N3/2066 ,  F01N3/2803 ,  F01N2510/0682 ,  F01N2510/0684

摘要： A selective catalytic reduction (SCR) catalyst composition effective in the abatement of nitrogen oxides (NOx) is provided. The SCR catalyst composition significantly increases the conversion of NOx relative to a Cu-chabazite reference catalyst composition at any temperature, and especially at low temperatures. A catalyst article, an exhaust gas treatment system, and a method of treating an exhaust gas stream, each including the SCR catalyst composition of the invention, are also provided. The SCR catalyst composition is particularly useful for treatment of exhaust from a lean-burn engine.

公开(公告)号：US12036510B2

公开(公告)日：2024-07-16

申请号：US17717690

申请日：2022-04-11

申请人： Akemi Sato ,  Takeshi Hirabayashi ,  Koji Sugiura ,  Keisuke Murawaki ,  Takaya Ota ,  Masatoshi Ikebe ,  Kohei Takasaki ,  Takeshi Morishima

发明人： Akemi Sato ,  Takeshi Hirabayashi ,  Koji Sugiura ,  Keisuke Murawaki ,  Takaya Ota ,  Masatoshi Ikebe ,  Kohei Takasaki ,  Takeshi Morishima

IPC分类号： B01D53/94

CPC分类号： B01D53/94 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/407 ,  B01D2255/9155 ,  F01N2330/60 ,  F01N2510/0682

摘要： An exhaust gas purification device suppresses a pressure loss increase and includes a honeycomb substrate and inflow cell side catalyst layer. The substrate includes a porous partition wall defining several cells extending from an inflow side end surface to an outflow side end surface. The cells include an inflow and outflow cell adjacent across the wall. The inflow cell has an open inflow side end and sealed outflow side end. The outflow cell has a sealed inflow side end and open outflow side end. The catalyst layer is on an inflow cell side surface in an region extending from the inflow side end positioned 10% or more of the partition wall length. At this position, a filled portion of the inflow cell side catalyst layer pores are 40% or less. The pores are present to a depth of 50% of a thickness of the partition wall.

公开(公告)号：US11654395B2

公开(公告)日：2023-05-23

申请号：US16225652

申请日：2018-12-19

申请人： JOHNSON MATTHEY JAPAN GODO KAISHA

发明人： Tomoharu Hayama

IPC分类号： B01D53/94 ,  B01J23/89 ,  B01J35/04 ,  B01J37/08 ,  B01J21/12 ,  B01J37/02 ,  B01J21/04 ,  B01J21/08 ,  F01N3/10 ,  B01J20/16 ,  B01J21/06 ,  B01J23/656 ,  B01J29/068 ,  B01J35/00 ,  F01N3/28 ,  F01N3/08

CPC分类号： B01D53/944 ,  B01D53/9468 ,  B01D53/9472 ,  B01J20/16 ,  B01J21/04 ,  B01J21/066 ,  B01J21/08 ,  B01J21/12 ,  B01J23/6562 ,  B01J23/8973 ,  B01J29/068 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0215 ,  B01J37/0236 ,  B01J37/0244 ,  B01J37/0246 ,  B01J37/0248 ,  B01J37/08 ,  F01N3/103 ,  F01N3/28 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/2073 ,  B01D2255/2092 ,  B01D2255/2096 ,  B01D2255/20738 ,  B01D2255/902 ,  B01D2255/903 ,  B01D2255/9022 ,  B01D2255/9032 ,  B01D2255/91 ,  B01D2255/9155 ,  B01D2258/012 ,  B01J2523/00 ,  F01N3/0814 ,  F01N3/0842 ,  F01N2330/06 ,  F01N2370/02 ,  F01N2510/063 ,  F01N2510/0682 ,  F01N2510/0684 ,  B01J2523/00 ,  B01J2523/54 ,  B01J2523/828 ,  B01J2523/842

摘要： An oxidation catalyst for treating an exhaust gas produced by a diesel engine comprises a catalytic region and a substrate, wherein the catalytic region comprises a catalytic material comprising: bismuth (Bi) or an oxide thereof; a Group 8 metal or an oxide thereof; a platinum group metal (PGM) selected from the group consisting of (i) platinum (Pt), (ii) palladium (Pd) and (iii) platinum (Pt) and palladium (Pd); and a support material, which comprises alumina, silica, a mixed oxide of alumina and a refractory oxide, a mixed oxide of silica and a refractory oxide, a composite oxide of alumina and a refractory oxide, a composite oxide of silica and a refractory oxide, alumina doped with a refractory oxide or silica doped with a refractory oxide.

公开(公告)号：US20190211723A1

公开(公告)日：2019-07-11

申请号：US16353081

申请日：2019-03-14

申请人： Johnson Matthey Public Limited Company

发明人： Satoshi SUMIYA ,  Daisuke YOKOTA

IPC分类号： F01N3/035 ,  F01N3/022 ,  B01J35/00 ,  F01N3/021 ,  B01J37/02 ,  B01D53/94 ,  B01D46/24 ,  B01J35/04 ,  B01J21/04 ,  B01J23/44

CPC分类号： F01N3/035 ,  B01D46/2418 ,  B01D53/944 ,  B01D53/9454 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/1026 ,  B01D2255/104 ,  B01D2255/202 ,  B01D2255/2022 ,  B01D2255/2027 ,  B01D2255/204 ,  B01D2255/2042 ,  B01D2255/2045 ,  B01D2255/2047 ,  B01D2255/206 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/20738 ,  B01D2255/20792 ,  B01D2255/2092 ,  B01D2255/908 ,  B01D2255/9155 ,  B01D2255/9202 ,  B01D2255/9205 ,  B01J21/04 ,  B01J23/44 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0018 ,  B01J37/0219 ,  B01J37/0248 ,  F01N3/021 ,  F01N3/0222 ,  F01N2330/06 ,  F01N2510/0682 ,  Y02T10/22

摘要： [Summary][Problem]The problem addressed by the present invention lies in providing an exhaust gas purification filter which can efficiently treat particulate matter in exhaust gas.[Solution]The present invention provides an exhaust gas purification filter including a substrate comprising a plurality of porous partitions, wherein the partitions form an exhaust gas flow path, a porous catalytic layer is provided on the partitions and the catalytic layer having a thickness of 10 μm or greater is provided over at least 20% of the total length of the partitions in the lengthwise direction thereof, and the catalytic layer having a thickness of 10 μm or greater is not present on the partitions 15 mm from an outflow side.

公开(公告)号：US20190201844A1

公开(公告)日：2019-07-04

申请号：US16225652

申请日：2018-12-19

申请人： JOHNSON MATTHEY JAPAN GODO KAISHA

发明人： Tomoharu Hayama

IPC分类号： B01D53/94 ,  B01J21/12 ,  B01J21/06 ,  B01J23/89 ,  B01J29/068 ,  B01J23/656 ,  B01J35/00 ,  B01J35/04 ,  B01J37/02 ,  B01J37/08 ,  B01J20/16 ,  F01N3/28

CPC分类号： B01J23/8973 ,  B01D53/944 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/20738 ,  B01D2255/2092 ,  B01D2255/2096 ,  B01D2255/902 ,  B01D2255/903 ,  B01D2258/012 ,  B01J21/04 ,  B01J21/08 ,  B01J21/12 ,  B01J35/04 ,  B01J37/0244 ,  B01J37/0246 ,  B01J37/0248 ,  B01J2523/00 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/103 ,  F01N2330/06 ,  F01N2370/02 ,  F01N2510/0682 ,  F01N2510/0684 ,  B01J2523/54 ,  B01J2523/828 ,  B01J2523/842

摘要： An oxidation catalyst for treating an exhaust gas produced by a diesel engine comprises a catalytic region and a substrate, wherein the catalytic region comprises a catalytic material comprising: bismuth (Bi) or an oxide thereof; a Group 8 metal or an oxide thereof; a platinum group metal (PGM) selected from the group consisting of (i) platinum (Pt), (ii) palladium (Pd) and (iii) platinum (Pt) and palladium (Pd); and a support material, which comprises alumina, silica, a mixed oxide of alumina and a refractory oxide, a mixed oxide of silica and a refractory oxide, a composite oxide of alumina and a refractory oxide, a composite oxide of silica and a refractory oxide, alumina doped with a refractory oxide or silica doped with a refractory oxide.

公开(公告)号：US10071368B2

公开(公告)日：2018-09-11

申请号：US15550252

申请日：2016-02-16

申请人： CATALER CORPORATION

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

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

CPC分类号： 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

摘要： 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

申请人： Yuki Aoki ,  Hiromasa Suzuki ,  Hiroyuki Matsubara

发明人： Yuki Aoki ,  Hiromasa Suzuki ,  Hiroyuki Matsubara

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

CPC分类号： 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

摘要： 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：US10071342B2

公开(公告)日：2018-09-11

申请号：US14895304

申请日：2014-05-28

申请人： UMICORE AG & CO. KG

发明人： Jan Schoenhaber ,  Joel Despres ,  Joerg-Michael Richter ,  Martin Roesch

IPC分类号： B01J21/04 ,  B01J23/10 ,  B01J23/44 ,  B01J23/46 ,  B01J23/56 ,  B01J23/58 ,  B01J23/63 ,  F01N3/10 ,  B01D53/94

CPC分类号： B01D53/9454 ,  B01D53/94 ,  B01D53/9445 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/902 ,  B01D2255/903 ,  B01D2255/9032 ,  B01D2255/908 ,  F01N3/101 ,  F01N2510/0682 ,  F01N2570/16 ,  Y02A50/2324 ,  Y02T10/22

摘要： The present invention relates to a three-way catalytic converter for reducing harmful exhaust components of gasoline-powered internal combustion engines, and to a corresponding method for exhaust gas purification. The catalytic converter is characterized by a particularly inhomogeneous distribution of the oxygen-storing material present.

公开(公告)号：US20180243690A1

公开(公告)日：2018-08-30

申请号：US15560772

申请日：2016-03-24

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

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

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

CPC分类号： 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

摘要： 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

申请人： DENSO CORPORATION

发明人： Takumi Suzawa ,  Yuto Amano ,  Manabu Ohsuka ,  Mikio Ishihara

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

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

摘要： 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.