公开(公告)号：US20190388838A1

公开(公告)日：2019-12-26

申请号：US16481574

申请日：2018-01-26

Applicant: BASF Corporation

Inventor： Tian Luo ,  Michel Deeba ,  Yunlong Gu ,  Stephan Deuerlein ,  Emi Leung

IPC: B01D53/94 ,  B01J23/63 ,  B01J35/04 ,  B01J35/00 ,  B01J21/04 ,  B01J37/02 ,  B01J37/16 ,  B01J37/08 ,  F01N3/10 ,  F01N3/28

Abstract: The present invention relates to catalyst compositions effective for carrying out three-way conversion including platinum group metal nanoparticles (e.g., nanoparticles of Pt, Pd, Au, Ru, Rh, alloys thereof, and mixtures thereof), the nanoparticles having an average particle size of 15 to 50 nm, wherein the nanoparticles are dispersed on a refractory metal oxide component. In some such catalyst compositions, a significant portion, e.g., at least 90% of the nanoparticles have a particle size within this range. Methods of preparing, and using such catalyst compositions as well as catalyst articles and emission treatment systems comprising such catalyst compositions are also provided herein.

公开(公告)号：US10512898B2

公开(公告)日：2019-12-24

申请号：US15738858

申请日：2016-06-24

Applicant: BASF Corporation

Inventor： Michel Deeba ,  Yipeng Sun ,  Tian Luo ,  Emi Leung ,  Pavel Ruvinskiy ,  Dinh Dang

IPC: B01D53/94 ,  B01J23/63 ,  B01J35/00 ,  B01J35/04 ,  F01N3/035 ,  F01N3/10 ,  B01J37/02

Abstract: Provided are automotive catalyst composites having a catalytic material on a carrier, wherein the catalytic material comprises at least two layers. The first layer is deposited directly on the carrier and comprises a first palladium component supported on a first refractory metal oxide component, a first oxygen storage component, or a combination thereof. The second layer is deposited on top of the first layer and comprises a rhodium component supported on a second refractory metal oxide component and a second palladium component supported on a second oxygen storage component, a third refractory metal oxide component or a combination thereof. Generally these catalyst composites are used as three-way conversion (TWC) catalysts. Methods of making and using the same are also provided.

公开(公告)号：US20190126247A1

公开(公告)日：2019-05-02

申请号：US16083335

申请日：2017-03-06

Applicant: BASF Corporation

Inventor： Michel Deeba

IPC: B01J23/46 ,  B01J21/04 ,  B01J29/70 ,  B01J29/40 ,  B01J29/80 ,  B01J35/02 ,  B01J35/04 ,  B01J35/00 ,  B01J37/02 ,  B01D53/94 ,  F01N3/28 ,  F01N3/10

Abstract: The invention provides an automotive catalyst composite that includes a catalytic material on a carrier, the catalytic material including a plurality of core-shell support particles including a core and a shell surrounding the core, wherein the core includes a plurality of particles having a primary particle size distribution d90 of up to about 5 μm, wherein the core particles include particles of one or more molecular sieves and optionally particles of one or more refractory metal oxides; and wherein the shell comprises nanoparticles of one or more refractory metal oxides, wherein the nanoparticles have a primary particle size distribution d90 in the range of about 5 nm to about 1000 nm (1 μm); and optionally, one or more platinum group metals (PGMs) on the core-shell support. The invention also provides an exhaust gas treatment system and related method of treating exhaust gas utilizing the catalyst composite.

公开(公告)号：US09931596B2

公开(公告)日：2018-04-03

申请号：US15503903

申请日：2015-10-21

Applicant: BASF CORPORATION

Inventor： Xiaolai Zheng ,  Chunxin Ji ,  Wen-Mei Xue ,  Matthew J. Schladt ,  Xiaoming Wang ,  Tian Luo ,  Michel Deeba ,  Knut Wassermann

IPC: B01D53/94 ,  F01N3/20 ,  B01J23/56 ,  B01J29/70 ,  B01J29/76

CPC classification number: B01D53/945 ,  B01D53/9418 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/502 ,  B01D2255/9022 ,  B01D2255/912 ,  B01D2255/9207 ,  B01J23/56 ,  B01J23/63 ,  B01J29/005 ,  B01J29/40 ,  B01J29/46 ,  B01J29/7007 ,  B01J29/76 ,  B01J29/7615 ,  B01J29/763 ,  B01J29/80 ,  B01J29/85 ,  B01J35/0006 ,  B01J37/0244 ,  B01J37/0246 ,  B01J2523/00 ,  Y02T10/24 ,  B01J2523/25 ,  B01J2523/31 ,  B01J2523/37 ,  B01J2523/3712 ,  B01J2523/48 ,  B01J2523/824 ,  B01J2523/822 ,  B01J2523/828

Abstract: An emissions treatment system for an exhaust stream of an internal combustion engine including hydrocarbons, carbon monoxide, and nitrogen oxides is provided. The disclosed system can include an exhaust conduit in fluid communication with the internal combustion engine via an exhaust manifold; a first three-way conversion catalyst (TWC-1) located downstream of the internal combustion engine in the exhaust conduit; an SCR-HCT catalyst comprising a selective catalytic reduction catalyst and a hydrocarbon trap downstream of the TWC-1 in the exhaust conduit; and a third catalyst downstream of the SCR-HCT combination in the exhaust conduit, the third catalyst comprising a platinum group metal (PGM) e.g., in an amount effective to oxidize hydrocarbons. Methods of making and using such systems and components thereof are also provided.