公开(公告)号：US10335776B2

公开(公告)日：2019-07-02

申请号：US14107704

申请日：2013-12-16

Applicant: BASF Corporation

Inventor： Shiang Sung ,  Stanley A. Roth ,  Claudia Zabel ,  Susanne Stiebels ,  Andreas Sundermann ,  Olga Gerlach

IPC: B01D53/94 ,  B01J29/076 ,  B01J37/02 ,  B01J35/00 ,  B01J23/40 ,  B01J23/656

Abstract: An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, an oxidation catalyst composite including a first washcoat layer comprising a Pt component and a Pd component, and a second washcoat layer including a refractory metal oxide support containing manganese, a zeolite, and a platinum component is described.

公开(公告)号：US09358503B2

公开(公告)日：2016-06-07

申请号：US14274300

申请日：2014-05-09

Applicant: BASF Corporation

Inventor： Chung-Zong Wan ,  Xiaolai Zheng ,  Susanne Stiebels ,  Claudia Wendt ,  Torsten Neubauer ,  R. Samuel Boorse

IPC: B01D50/00 ,  B01D53/94 ,  F01N3/035 ,  F01N3/08 ,  F01N3/20 ,  F01N3/10 ,  F01N13/02

CPC classification number: B01D53/9431 ,  B01D53/58 ,  B01D53/92 ,  B01D53/9418 ,  B01D53/9422 ,  B01D53/9472 ,  B01D53/9477 ,  B01D2251/2062 ,  B01D2255/102 ,  B01D2255/2042 ,  B01D2255/2045 ,  B01D2255/206 ,  B01D2255/2063 ,  B01D2255/2066 ,  B01D2255/2068 ,  B01D2255/20753 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/9022 ,  B01D2255/91 ,  B01D2255/9155 ,  B01D2255/9205 ,  B01D2258/012 ,  F01N3/02 ,  F01N3/021 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/10 ,  F01N3/103 ,  F01N3/206 ,  F01N3/2066 ,  F01N3/2073 ,  F01N13/02 ,  F01N2510/063 ,  F01N2510/0682 ,  Y02T10/24

Abstract: Provided are emissions treatment systems for an exhaust stream having an ammonia-generating component, such as a NOx storage reduction (NSR) catalyst or a lean NOx trap (LNT) catalyst, and an SCR catalyst disposed downstream of the ammonia-generating catalyst. The SCR catalyst can be a molecular sieve having the CHA crystal structure, for example SSZ-13 or SAPO-34, which can be ion-exchanged with copper. The LNT can be layered, having an undercoat washcoat layer comprising a support material, at least one precious metal, and at least one NOx sorbent selected from the group consisting of alkaline earth elements, rare earth elements, and combinations thereof and a top washcoat layer comprising a support material, at least one precious metal, and ceria in particulate form, the top washcoat layer being substantially free of alkaline earth components. The emissions treatment system is advantageously used for the treatment of exhaust streams from diesel engines and lean burn gasoline engines.

Abstract translation: 提供了具有氨生成成分的排气流的排放处理系统，例如NOx储存还原（NSR）催化剂或稀NOx捕集器（LNT）催化剂，以及设置在产氨催化剂下游的SCR催化剂。 SCR催化剂可以是具有CHA晶体结构的分子筛，例如可与铜进行离子交换的SSZ-13或SAPO-34。 LNT可以是层状的，具有包含载体材料的底涂层涂层，至少一种贵金属和至少一种选自碱土金属元素，稀土元素及其组合的NO x吸附剂，以及顶部洗涂层 包括支撑材料，至少一种贵金属和颗粒形式的二氧化铈，所述顶部修补基面涂层基本上不含碱土金属组分。 排放物处理系统有利地用于处理来自柴油发动机和贫燃汽油发动机的废气流。

公开(公告)号：US20140248200A1

公开(公告)日：2014-09-04

申请号：US14274300

申请日：2014-05-09

Applicant: BASF Corporation

Inventor： Chung-Zong Wan ,  Xiaolai Zheng ,  Susanne Stiebels ,  Claudia Wendt ,  Torsten Neubauer ,  R. Samuel Boorse

IPC: B01D53/94

CPC classification number: B01D53/9431 ,  B01D53/58 ,  B01D53/92 ,  B01D53/9418 ,  B01D53/9422 ,  B01D53/9472 ,  B01D53/9477 ,  B01D2251/2062 ,  B01D2255/102 ,  B01D2255/2042 ,  B01D2255/2045 ,  B01D2255/206 ,  B01D2255/2063 ,  B01D2255/2066 ,  B01D2255/2068 ,  B01D2255/20753 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/9022 ,  B01D2255/91 ,  B01D2255/9155 ,  B01D2255/9205 ,  B01D2258/012 ,  F01N3/02 ,  F01N3/021 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/10 ,  F01N3/103 ,  F01N3/206 ,  F01N3/2066 ,  F01N3/2073 ,  F01N13/02 ,  F01N2510/063 ,  F01N2510/0682 ,  Y02T10/24

Abstract: Provided are emissions treatment systems for an exhaust stream having an ammonia-generating component, such as a NOx storage reduction (NSR) catalyst or a lean NOx trap (LNT) catalyst, and an SCR catalyst disposed downstream of the ammonia-generating catalyst. The SCR catalyst can be a molecular sieve having the CHA crystal structure, for example SSZ-13 or SAPO-34, which can be ion-exchanged with copper. The LNT can be layered, having an undercoat washcoat layer comprising a support material, at least one precious metal, and at least one NOx sorbent selected from the group consisting of alkaline earth elements, rare earth elements, and combinations thereof and a top washcoat layer comprising a support material, at least one precious metal, and ceria in particulate form, the top washcoat layer being substantially free of alkaline earth components. The emissions treatment system is advantageously used for the treatment of exhaust streams from diesel engines and lean burn gasoline engines.

公开(公告)号：US11691106B2

公开(公告)日：2023-07-04

申请号：US17309016

申请日：2019-10-30

Applicant: BASF CORPORATION

Inventor： Matthias Peter ,  Susanne Stiebels ,  Karifala Dumbuya ,  Claudia Zabel

IPC: B01D53/94 ,  B01J21/06 ,  B01J21/12 ,  B01J21/18 ,  B01J29/76 ,  B01J35/00 ,  B01J35/02 ,  B01J35/04 ,  B01J35/10 ,  B01J37/02 ,  B01J37/04 ,  B01J37/08 ,  F01N3/021 ,  F01N3/10 ,  F01N3/20 ,  F01N3/28 ,  F01N3/08

CPC classification number: B01D53/9418 ,  B01J21/066 ,  B01J21/12 ,  B01J21/18 ,  B01J29/763 ,  B01J35/0006 ,  B01J35/023 ,  B01J35/04 ,  B01J35/1019 ,  B01J35/1023 ,  B01J35/1076 ,  B01J37/0228 ,  B01J37/04 ,  B01J37/082 ,  F01N3/021 ,  F01N3/106 ,  F01N3/2066 ,  F01N3/28 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/9032 ,  B01D2255/9035 ,  B01D2255/911 ,  B01D2255/9155 ,  B01D2255/9207 ,  F01N3/0814 ,  F01N3/0871 ,  F01N2330/30 ,  F01N2370/04 ,  F01N2370/24 ,  F01N2510/0682 ,  F01N2510/0684

Abstract: A selective catalytic reduction catalyst for the treatment of an exhaust gas stream of a passive ignition engine, the catalyst comprising a porous wall-flow filter substrate comprising an inlet end, an outlet end, a substrate axial length (w) extending between the inlet end and the outlet end, and a plurality of passages defined by porous internal walls of the porous wall flow filter substrate; wherein the catalyst further comprises a first coating, said first coating extending over x % of the substrate axial length from the inlet end toward the outlet end of the substrate, x being in the range of from 10 to 100, wherein the first coating comprises copper and an 8-membered ring pore zeolitic material; wherein the catalyst further comprises a second coating, the second coating extending over y % of the substrate axial length from the outlet end toward the inlet end of the substrate, y being in the range of from 20 to 90, wherein the second coating comprises copper, and optionally an 8-membered ring pore zeolitic material; wherein the catalyst optionally further comprises a third coating; wherein x+y is at least 90; wherein y % of w from the outlet end toward the inlet end of the substrate define the outlet zone of the coated substrate and (100−y) % of w from the inlet end toward the outlet end of the substrate define the inlet zone of the coated substrate; wherein the ratio of the loading of copper in the inlet zone, Cu(in), calculated as CuO, relative to the loading of copper in the outlet zone, Cu(out), calculated as CuO, Cu(in):Cu(out), is less than 1:1.

公开(公告)号：US20220250044A1

公开(公告)日：2022-08-11

申请号：US17655584

申请日：2022-03-21

Applicant: BASF Corporation

Inventor： Shiang Sung ,  Stanley A. Roth ,  Claudia Zabel ,  Susanne Stiebels ,  Andreas Sundermann ,  Olga Gerlach

IPC: B01J29/076 ,  B01D53/94 ,  B01J35/00 ,  B01J37/02

Abstract: An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, an oxidation catalyst composite including a first washcoat layer comprising a Pt component and a Pd component, and a second washcoat layer including a refractory metal oxide support containing manganese, a zeolite, and a platinum component is described.

公开(公告)号：US11248505B2

公开(公告)日：2022-02-15

申请号：US16310327

申请日：2017-06-13

Applicant: BASF Corporation

Inventor： Shiang Sung ,  Patrick William McCanty ,  Markus Koegel ,  Susanne Stiebels

IPC: B01J21/04 ,  B01J21/06 ,  B01J21/10 ,  B01J23/02 ,  B01J23/10 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  B01J23/63 ,  B01J35/00 ,  B01J35/04 ,  F01N3/10 ,  F01N3/20 ,  B01J37/02

Abstract: An oxidation catalyst composite for abatement of exhaust gas emissions from a lean burn engine is provided, the catalyst composite including a carrier substrate having a length, an inlet end and an outlet end, and an oxidation catalyst material coated on the carrier substrate. The oxidation catalyst material can include a first layer and a second layer. The first layer can include a first oxygen storage component that includes ceria and is impregnated with a palladium (Pd) component and a second component including one or more of magnesium (Mg), rhodium (Rh), and platinum (Pt). The second layer can include a refractory metal oxide component impregnated with platinum (Pt) and palladium (Pd), wherein the ratio of Pt to Pd is in the range of about 0:10 to about 10:0.

公开(公告)号：US20190262809A1

公开(公告)日：2019-08-29

申请号：US16410915

申请日：2019-05-13

Applicant: BASF Corporation

Inventor： Shiang Sung ,  Stanley A. Roth ,  Claudia Zabel ,  Susanne Stiebels ,  Andreas Sundermann ,  Olga Gerlach

IPC: B01J29/076 ,  B01D53/94 ,  B01J37/02 ,  B01J35/00

Abstract: An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, an oxidation catalyst composite including a first washcoat layer comprising a Pt component and a Pd component, and a second washcoat layer including a refractory metal oxide support containing manganese, a zeolite, and a platinum component is described.

公开(公告)号：US10328388B2

公开(公告)日：2019-06-25

申请号：US15748501

申请日：2016-07-29

Applicant: BASF Corporation

Inventor： Karifala Dumbuya ,  Claudia Zabel ,  Susanne Stiebels ,  Shiang Sung

IPC: B01D53/94 ,  B01J23/63 ,  B01J29/76 ,  B01J35/00 ,  B01J37/02

Abstract: An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emis-sions from a diesel engine are described. More particularly, described is an oxidation catalyst composite including a first oxidation material comprising a first refractory metal oxide support, a rare earth oxide, and palladium (Pd); a second oxidation material comprising a second refractory metal oxide, and platinum (Pt) and palladium (Pd); and a protective overlayer comprising a third refractory metal oxide, platinum (Pt) and, optionally, palladium (Pd), and a molecular sieve promoted with a metal selected from one or more of Cu, Fe, Co, Ni, Mn, V, and, Ag. The oxid-ation catalyst composite is sulfur tolerant.

公开(公告)号：US20180272280A1

公开(公告)日：2018-09-27

申请号：US15995316

申请日：2018-06-01

Applicant: BASF Corporation

Inventor： Kenneth E. Voss ,  Kevin A. Hallstrom ,  Sanath V. Kumar ,  Susanne Stiebels ,  Marius Vaarkamp

IPC: B01D53/94 ,  F01N3/20 ,  F01N3/08 ,  F01N3/023

CPC classification number: B01D53/9418 ,  B01D53/944 ,  B01D53/945 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2251/2067 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/9155 ,  B01D2258/012 ,  F01N3/0231 ,  F01N3/0821 ,  F01N3/2066 ,  F01N2510/0682 ,  F01N2570/18 ,  F01N2610/02 ,  Y02T10/22 ,  Y02T10/24

Abstract: Zoned diesel oxidation catalysts containing a higher precious metal loading in the inlet zone that the outlet zone and an equal or shorter length inlet zone are described. Emission treatment systems and methods of remediating nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons using zoned diesel oxidation catalysts are also described.

公开(公告)号：US20180214824A1

公开(公告)日：2018-08-02

申请号：US15748501

申请日：2016-07-29

Applicant: BASF Corporation

Inventor： Karifala Dumbuya ,  Claudia Zabel ,  Susanne Stiebels ,  Shiang Sung

IPC: B01D53/94 ,  B01J23/63 ,  B01J29/76 ,  B01J35/00 ,  B01J37/02

CPC classification number: B01D53/944 ,  B01D53/9477 ,  B01D2251/2067 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2092 ,  B01D2255/30 ,  B01D2255/502 ,  B01D2255/9022 ,  B01D2255/9025 ,  B01D2255/9032 ,  B01D2258/012 ,  B01J23/63 ,  B01J29/7615 ,  B01J35/0006 ,  B01J37/0244 ,  B01J37/0246

Abstract: An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, described is an oxidation catalyst composite including a first oxidation material comprising a first refractory metal oxide support, a rare earth oxide, and palladium (Pd); a second oxidation material comprising a second refractory metal oxide, and platinum (Pt) and palladium (Pd); and a protective overlayer comprising a third refractory metal oxide, platinum (Pt) and, optionally, palladium (Pd), and a molecular sieve promoted with a metal selected from one or more of Cu, Fe, Co, Ni, Mn, V, and, Ag. The oxidation catalyst composite is sulfur tolerant.