公开(公告)号：US11896962B2

公开(公告)日：2024-02-13

申请号：US16953533

申请日：2020-11-20

Applicant: BASF Corporation

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

IPC: B01D53/94 ,  B01J29/076 ,  B01J37/02 ,  B01J35/00 ,  B01J23/63 ,  B01J23/40 ,  B01J23/656

CPC classification number: B01J29/076 ,  B01D53/944 ,  B01D53/945 ,  B01J35/0006 ,  B01J37/0244 ,  B01J37/0246 ,  B01D53/9418 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/2061 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2066 ,  B01D2255/2068 ,  B01D2255/2073 ,  B01D2255/50 ,  B01D2255/502 ,  B01D2255/504 ,  B01D2255/9025 ,  B01J23/40 ,  B01J23/63 ,  B01J23/6562 ,  Y02T10/12

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 comprising a zeolite, Pt, and first refractory metal oxide support containing manganese, a second washcoat comprising a second refractory metal oxide support, a Pt component and a Pd component, and a third washcoat comprising palladium and a rare earth oxide component is described.

公开(公告)号：US11890575B2

公开(公告)日：2024-02-06

申请号：US17807392

申请日：2022-06-17

Applicant: BASF Corporation

Inventor： Shiang Sung ,  Pushkaraj R. Patwardhan

IPC: B01D53/94 ,  B01J23/58 ,  B01J23/656 ,  B01J21/04 ,  B01J29/68 ,  B01J23/44 ,  B01J23/34 ,  B01J21/12 ,  B01J29/76 ,  B01J35/00 ,  F01N3/10 ,  F01N3/20 ,  F01N3/28

CPC classification number: B01D53/9477 ,  B01D53/944 ,  B01D53/9418 ,  B01D53/9468 ,  B01D53/9472 ,  B01D53/9481 ,  B01J21/04 ,  B01J21/12 ,  B01J23/34 ,  B01J23/44 ,  B01J23/58 ,  B01J23/6562 ,  B01J29/68 ,  B01J29/763 ,  B01J35/0006 ,  F01N3/106 ,  F01N3/2066 ,  F01N3/2803 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/2042 ,  B01D2255/2073 ,  B01D2255/20723 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/904 ,  B01D2255/9022 ,  B01D2255/9032 ,  B01D2255/91 ,  B01D2255/911 ,  F01N2370/02

Abstract: The present disclosure is directed to an emission treatment system for NOx abatement in an exhaust stream of an ammonia-fueled engine, the emission treatment system including a selective catalytic reduction (SCR) catalyst disposed on a substrate in fluid communication with the exhaust stream, an oxidation catalyst disposed on a substrate positioned either upstream or downstream of the SCR catalyst and in fluid communication with the exhaust stream and the SCR catalyst, and optionally, one or more adsorption components disposed on a substrate positioned upstream and/or downstream of the SCR catalyst and in fluid communication with the exhaust stream and the SCR catalyst, the adsorption component chosen from low temperature NOx adsorbers (LT-NA), low temperature ammonia adsorbers (LT-AA), low temperature water vapor adsorbers (LT-WA), and combinations thereof. The disclosure further provides a related method of treatment of an exhaust gas.

公开(公告)号：US11181028B2

公开(公告)日：2021-11-23

申请号：US16500270

申请日：2018-04-03

Applicant: BASF CORPORATION

Inventor： Shiang Sung

IPC: F01N3/20 ,  F01N13/00 ,  F01N9/00

Abstract: The invention provides an emission control system for treatment of an exhaust gas stream of an engine, including an engine producing an exhaust gas stream; an SCR catalyst unit downstream from the engine and in fluid communication with the exhaust gas stream; and an ammonia generation system comprising a reservoir containing ammonium hydroxide and an ammonia injector, wherein the reservoir is in fluid communication with the ammonia injector and the ammonia injector is in fluid communication with the exhaust gas stream upstream of the SCR catalyst unit. A method of treating an exhaust gas stream of an engine is also provided, including the steps of heating ammonium hydroxide to produce gaseous ammonia and transferring the gaseous ammonia through an ammonia injector into the exhaust gas stream such that the gaseous ammonia disperses within the exhaust gas stream upstream of a SCR catalyst unit.

公开(公告)号：US20210102486A1

公开(公告)日：2021-04-08

申请号：US16500340

申请日：2018-04-03

Applicant: BASF CORPORATION

Inventor： Shiang Sung ,  Torsten Neubauer ,  Pushkaraj R. Patwardhan ,  Susanne Stiebels ,  Claudia Zabel

IPC: F01N3/20 ,  B01J23/58 ,  B01J21/04 ,  B01J23/656 ,  B01J35/00 ,  B01J35/04 ,  B01J29/76 ,  B01D53/94 ,  F01N3/10 ,  F01N3/08 ,  F01N3/28

Abstract: The invention provides an emission control system for treatment of an exhaust gas stream that includes an oxidation catalyst composition disposed on a substrate in fluid communication with the exhaust gas stream; at least one selective catalytic reduction (SCR) composition disposed on a substrate downstream from the oxidation catalyst composition, and a hydrogen injection article configured to introduce hydrogen into the exhaust gas stream upstream of the oxidation catalyst composition or downstream of the oxidation catalyst composition and upstream of the at least one SCR composition. The invention also provides a method of treating an exhaust gas stream, the method including receiving the exhaust gas stream into the emission control system of the invention and intermittently introducing hydrogen upstream of the oxidation catalyst article or downstream of the oxidation catalyst article and upstream stream of the SCR article.

公开(公告)号：US10919025B2

公开(公告)日：2021-02-16

申请号：US16751841

申请日：2020-01-24

Applicant: BASF CORPORATION

Inventor： Yuejin Li ,  Shiang Sung ,  Stanley D. Roth ,  Torsten Neubauer ,  Susanne Stiebels

IPC: B01J23/46 ,  B01J23/42 ,  B01J23/44 ,  B01J23/52 ,  B01J23/50 ,  B01J23/34 ,  B01J23/745 ,  B01J23/72 ,  B01J23/14 ,  B01J23/75 ,  B01J23/755 ,  B01J23/89 ,  B01J23/10 ,  B01J21/04 ,  B01J21/08 ,  B01J35/10 ,  B01D53/94

Abstract: A nitrous oxide (N2O) removal catalyst composition for treating an exhaust stream of an internal combustion engine is provided, containing a platinum group metal (PGM) component on a metal oxide-based support, wherein the N2O removal catalyst composition is in a substantially reduced form, such that it has an oxygen deficiency of about 0.05 mmol oxygen atoms/g or greater, and wherein the N2O removal catalyst composition provides effective removal of at least a portion of N2O from the exhaust stream under lean conditions at a temperature of about 350° C. or lower. N2O removal catalytic articles, systems, and methods are also provided for removing at least a portion of N2O from an exhaust stream under lean, low temperature conditions.

公开(公告)号：US20200156046A1

公开(公告)日：2020-05-21

申请号：US16751841

申请日：2020-01-24

Applicant: BASF CORPORATION

Inventor： Li Yuejin ,  Shiang Sung ,  Roth Stanley ,  Torsten Neubauer ,  Susanne Stiebels

IPC: B01J23/46 ,  B01J23/42 ,  B01J23/44 ,  B01J23/52 ,  B01J23/50 ,  B01J23/34 ,  B01J23/745 ,  B01J23/72 ,  B01J23/14 ,  B01J23/75 ,  B01J23/755 ,  B01J23/89 ,  B01J23/10 ,  B01J21/04 ,  B01J21/08 ,  B01J35/10 ,  B01D53/94

Abstract: A nitrous oxide (N2O) removal catalyst composition for treating an exhaust stream of an internal combustion engine is provided, containing a platinum group metal (PGM) component on a metal oxide-based support, wherein the N2O removal catalyst composition is in a substantially reduced form, such that it has an oxygen deficiency of about 0.05 mmol oxygen atoms/g or greater, and wherein the N2O removal catalyst composition provides effective removal of at least a portion of N2O from the exhaust stream under lean conditions at a temperature of about 350° C. or lower. N2O removal catalytic articles, systems, and methods are also provided for removing at least a portion of N2O from an exhaust stream under lean, low temperature conditions.

公开(公告)号：US20200032688A1

公开(公告)日：2020-01-30

申请号：US16592215

申请日：2019-10-03

Applicant: BASF CORPORATION

Inventor： Shiang Sung ,  Saeed Alerasool

IPC: F01N3/20 ,  C01B3/04 ,  C01B3/00 ,  B01D53/94 ,  C25B1/04

Abstract: Systems for abatement of pollutants in an exhaust gas stream of an internal combustion engine including a hydrogen injection article configured to introduce hydrogen upstream of a catalytic article are effective for the abatement of carbon monoxide and/or hydrocarbons and/or nitrogen oxides. The introduction of hydrogen may be intermittent and/or during a cold-start period.

公开(公告)号：US20180029016A1

公开(公告)日：2018-02-01

申请号：US15548657

申请日：2016-02-08

Applicant: BASF Corporation

Inventor： Shiang Sung ,  Patrick William McCanty ,  Stanley A. Roth ,  Xiaolai Zheng ,  Olga Gerlach ,  Markus Kögel

IPC: B01J23/656 ,  B01J35/00 ,  B01J35/04 ,  F01N3/10 ,  B01J37/08 ,  B01J37/20 ,  B01D53/94 ,  B01J23/63 ,  B01J37/02

CPC classification number: B01J23/6562 ,  B01D53/9418 ,  B01D53/944 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/2042 ,  B01D2255/2065 ,  B01D2255/2073 ,  B01D2255/2092 ,  B01D2255/30 ,  B01D2255/40 ,  B01D2255/9025 ,  B01D2255/91 ,  B01D2255/9155 ,  B01J23/002 ,  B01J23/63 ,  B01J29/061 ,  B01J29/068 ,  B01J29/076 ,  B01J29/088 ,  B01J29/126 ,  B01J29/166 ,  B01J29/185 ,  B01J29/22 ,  B01J29/26 ,  B01J29/405 ,  B01J29/44 ,  B01J29/48 ,  B01J29/655 ,  B01J29/67 ,  B01J29/69 ,  B01J29/7057 ,  B01J29/7065 ,  B01J29/7415 ,  B01J29/743 ,  B01J29/7815 ,  B01J29/783 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0236 ,  B01J37/0244 ,  B01J37/0246 ,  B01J37/0248 ,  B01J37/08 ,  B01J37/10 ,  B01J37/20 ,  B01J2523/00 ,  F01N3/106 ,  F01N3/2066 ,  F01N2370/02 ,  B01J2523/25 ,  B01J2523/31 ,  B01J2523/3712 ,  B01J2523/72 ,  B01J2523/824 ,  B01J2523/828 ,  B01J2523/41

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 component comprising a first refractory metal oxide support, palladium (Pd) and platinum (Pt); a NOx storage component comprising one or more of alumina, silica, titania, ceria, or manganese; and a second oxidation component comprising a second refractory metal oxide, a zeolite, and Pt. The oxidation catalyst composite is sulfur tolerant, adsorbs NOx and thermally releases the stored NOx at temperature less than 350° C.

公开(公告)号：US20240287926A1

公开(公告)日：2024-08-29

申请号：US18024833

申请日：2021-09-07

Applicant: BASF CORPORATION

Inventor： Shiang Sung ,  Chunxin Ji ,  Pavel Ruvinskiy

IPC: F01N3/20 ,  F01N9/00

CPC classification number: F01N3/206 ,  F01N9/00 ,  F01N2240/30 ,  F01N2560/024 ,  F01N2560/025 ,  F01N2610/04 ,  F01N2900/0408

Abstract: The disclosure provides a system for treating an exhaust gas stream from a gasoline engine. The system is configured to introduce controlled quantities of hydrogen gas into the exhaust gas stream upstream of a catalyst article during a cold-start period. Further provided are related methods of treating such exhaust streams. Such systems and methods are useful in reducing a level of one or more of hydrocarbons, carbon monoxide, and nitrogen oxide in a gaseous exhaust stream from a gasoline engine.

公开(公告)号：US20240157348A1

公开(公告)日：2024-05-16

申请号：US18549939

申请日：2022-03-18

Applicant: BASF Corporation

Inventor： Alfred Punke ,  Gerd Grubert ,  Jeffrey B Hoke ,  Shiang Sung

IPC: B01J29/67 ,  B01D53/94 ,  B01J21/04 ,  B01J21/12 ,  B01J23/42 ,  B01J23/44 ,  B01J23/656 ,  B01J29/70 ,  F01N3/28

CPC classification number: B01J29/67 ,  B01D53/9422 ,  B01D53/9472 ,  B01D53/9477 ,  B01J21/04 ,  B01J21/12 ,  B01J23/42 ,  B01J23/44 ,  B01J23/6562 ,  B01J29/7007 ,  F01N3/2803 ,  B01D2251/208 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/91 ,  B01D2257/404 ,  B01D2258/012 ,  F01N2370/04 ,  F01N2510/063 ,  F01N2510/068

Abstract: The present invention relates to a system for the treatment of an exhaust gas of a diesel combustion engine, a process for preparation of such a system, and a use thereof. In particular, said system comprises a NOx adsorber component and a lean NOx trap component, wherein the NOx adsorber component is comprised in a first catalyst comprising a first substrate and a first coating comprising a platinum group metal supported on a zeolitic material; and wherein the lean NOx trap component is comprised in a second catalyst comprising a second substrate and a second coating comprising Pt and Pd both supported on a specific first non-zeolitic oxidic support material, wherein in said system the NOx adsorber component is arranged upstream of the lean NOx trap component.