公开(公告)号：US12023627B2

公开(公告)日：2024-07-02

申请号：US17661058

申请日：2022-04-28

Applicant: BASF Corporation

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

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

CPC classification number: B01D53/9418 ,  B01D53/944 ,  B01D53/945 ,  B01D53/9495 ,  F01N3/0231 ,  F01N3/0821 ,  F01N3/2066 ,  B01D53/9477 ,  B01D2251/2067 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/9155 ,  B01D2258/012 ,  F01N2510/0682 ,  F01N2570/18 ,  F01N2610/02 ,  Y02T10/12

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：US12203403B2

公开(公告)日：2025-01-21

申请号：US15552305

申请日：2016-03-18

Applicant: BASF CORPORATION

Inventor： Weiyong Tang ,  Sanath V. Kumar ,  Kevin A. Hallstrom ,  David M. Youngren ,  Kenneth E. Voss

IPC: F01N3/20 ,  B01D53/94 ,  B01J29/072 ,  B01J29/76 ,  B01J35/00 ,  B01J35/56 ,  B01J37/02 ,  F01N3/035

Abstract: Provided are catalyst articles, methods and systems for treating lean burn engine exhaust. Catalyst articles include selective catalytic reduction catalyst on a particulate filter. The SCR catalyst on the particulate filter provides limited NOx conversion so that unconverted NO2 is available to facilitate passive oxidation of soot trapped on the particulate filter by reaction with NO2. Systems and methods utilize such catalytic articles, and further include, e.g., a downstream selective catalytic reduction catalyst on a flow through substrate.

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：US20180045097A1

公开(公告)日：2018-02-15

申请号：US15552305

申请日：2016-03-18

Applicant: BASF CORPORATION

Inventor： Weiyong Tang ,  Sanath V. Kumar ,  Kevin A. Hallstrom ,  David M. Youngren ,  Kenneth E. Voss

IPC: F01N3/20 ,  B01D53/94 ,  F01N3/035

CPC classification number: F01N3/208 ,  B01D53/9418 ,  B01D53/944 ,  B01D53/9477 ,  B01D2255/50 ,  B01D2255/9155 ,  B01D2257/404 ,  B01D2258/012 ,  B01J29/072 ,  B01J29/76 ,  B01J29/763 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0246 ,  B01J2229/18 ,  F01N3/035 ,  F01N2570/14 ,  F01N2610/02 ,  Y02A50/2325 ,  Y02A50/2345 ,  Y02T10/24

Abstract: Provided are catalyst articles, methods and systems for treating lean burn engine exhaust. Catalyst articles include selective catalytic reduction catalyst on a particulate filter. The SCR catalyst on the particulate filter provides limited NOx conversion so that unconverted NO2 is available to facilitate passive oxidation of soot trapped on the particulate filter by reaction with NO2. Systems and methods utilize such catalytic articles, and further include, e.g., a downstream selective catalytic reduction catalyst on a flow through substrate.

公开(公告)号：US20240307822A1

公开(公告)日：2024-09-19

申请号：US18675217

申请日：2024-05-28

Applicant: BASF Corporation

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

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

CPC classification number: B01D53/9418 ,  B01D53/944 ,  B01D53/945 ,  B01D53/9495 ,  F01N3/0231 ,  F01N3/0821 ,  F01N3/2066 ,  B01D53/9477 ,  B01D2251/2067 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/9155 ,  B01D2258/012 ,  F01N2510/0682 ,  F01N2570/18 ,  F01N2610/02 ,  Y02T10/12

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：US11344845B2

公开(公告)日：2022-05-31

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: F01N3/02 ,  B01D53/94 ,  F01N3/023 ,  F01N3/08 ,  F01N3/20

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.