公开(公告)号：US20220001371A1

公开(公告)日：2022-01-06

申请号：US17309117

申请日：2019-10-24

Applicant: BASF Corporation

Inventor： Yuejin LI

IPC: B01J35/04 ,  F01N3/20 ,  B01J35/02 ,  B01J37/02 ,  B01J29/72 ,  B01J37/00 ,  B01J37/08 ,  B01J21/04

Abstract: The present disclosure provides catalyst compositions for NOx conversion and wall-flow filter substrates comprising such catalyst compositions. Certain catalyst compositions include a zeolite with sufficient Cu exchanged into cation sites thereof to give a Cu/Al ratio of 0.1 to 0.5 and a CuO loading of 1 to 15 wt. %; and a copper trapping component (e.g., alumina) including a plurality of particles having a D90 particle size of about 0.5 to 20 microns in a concentration of about 1 to 20 wt. %. The zeolite and copper trapping component can be in the same washcoat layer or can be in different washcoat layers (such that the copper trapping component serves as a “pre-coating” on the wall-flow filter substrate).

公开(公告)号：US20220143579A1

公开(公告)日：2022-05-12

申请号：US17594311

申请日：2020-04-08

Applicant: BASF Corporation

Inventor： Yu Fen HAO ,  Yuejin LI ,  Stanley A. ROTH ,  Jan Martin BECKER ,  Stefan MAURER

IPC: B01J23/42 ,  B01J21/06 ,  B01J35/10 ,  B01J29/70 ,  F01N3/20

Abstract: The invention relates to a selective ammonia oxidation catalysts comprising a platinum group metal and a support comprising TiO2 doped with 0-10% by weight of SiO2, WO3, ZrO2, Y2O3, La2O3, or a mixture thereof. The invention further comprises methods for the manufacture of the selective ammonia oxidation catalysts, and integrated catalyst systems comprising the selective ammonia oxidation catalysts for treating an exhaust gas stream.

公开(公告)号：US20180043335A1

公开(公告)日：2018-02-15

申请号：US15555131

申请日：2016-03-03

Applicant: BASF Corporation

Inventor： Gerd GRUBERT ,  Torsten NEUBAUER ,  Alfred PUNKE ,  Marcus HILGENDORFF ,  Yuejin LI

IPC: B01J23/46 ,  B01J23/44 ,  B01J23/10 ,  F01N3/20 ,  B01J35/04 ,  B01J37/02 ,  F01N3/08 ,  B01D53/94 ,  B01J35/00

CPC classification number: B01J23/464 ,  B01D53/9418 ,  B01D53/9422 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/2047 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2066 ,  B01D2255/207 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/40 ,  B01D2255/502 ,  B01D2255/904 ,  B01D2255/908 ,  B01D2255/91 ,  B01D2258/012 ,  B01J21/04 ,  B01J23/10 ,  B01J23/44 ,  B01J23/63 ,  B01J29/7007 ,  B01J29/7415 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0244 ,  B01J37/0246 ,  B01J37/0248 ,  B01J37/038 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/2066 ,  F01N2370/02

Abstract: A lean burn engine exhaust treatment articles comprising a low temperature lean NOx trap (LT-LNT) composition and methods for their use is disclosed. A lean burn engine exhaust gas treatment system including the lean burn engine exhaust treatment articles is also disclosed. The low temperature lean NOx trap (LT-LNT) compositions can comprise a washcoat layer on a carrier substrate, the washcoat layer including a platinum group metal component impregnated on a first support material comprising at least 50% alumina. The washcoat layer may further include a low temperature NOx storage material comprising a bulk particulate reducible metal oxide. Methods of monitoring the aging state of a lean burn oxidation catalyst in a lean burn engine catalyst system are also disclosed.

公开(公告)号：US20240375086A1

公开(公告)日：2024-11-14

申请号：US18684531

申请日：2022-08-18

Applicant: BASF CORPORATION

Inventor： Dengsong ZHANG ,  Penglu WANG ,  Hongrui LI ,  Yuejin LI ,  Shau Lin CHEN

IPC: B01J23/34 ,  B01J21/06 ,  B01J23/745 ,  B01J23/76 ,  B01J35/00 ,  B01J35/30 ,  B01J37/02 ,  F01N3/035

Abstract: A non-vanadium based metal oxide catalyst composition is provided. The catalyst composition comprises at least one metal oxide, comprising manganese oxide and being dispersed on the support, and a support comprising particles of composite oxide of aluminum and at least one metal selected from cerium, manganese and titanium, wherein aluminum is present in the composite oxide in an amount of from 50% to 80% by weight, calculated as Al2O3, based on the total weight of the composite oxide, and wherein manganese oxide is present in the metal oxide catalyst composition in an amount of from 2.5% to 10% by weight, calculated as MnO2, based on the total weight of the metal oxide catalyst composition.

公开(公告)号：US20250065318A1

公开(公告)日：2025-02-27

申请号：US18720349

申请日：2022-12-20

Applicant: BASF CORPORATION

Inventor： Wolfgang RUETTINGER ,  Rupa Hiremath DARJI ,  Liangliang QU ,  Yuejin LI

IPC: B01J37/00 ,  B01J23/44 ,  B01J35/61 ,  B01J35/63 ,  B01J35/69 ,  B01J37/02 ,  B01J37/08

Abstract: Catalytic porous metal oxide particles and methods of preparing the same.

公开(公告)号：US20250001402A1

公开(公告)日：2025-01-02

申请号：US18706285

申请日：2022-10-20

Applicant: BASF CORPORATION ,  UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

Inventor： Fudong LIU ,  Shaohua XIE ,  Yuejin LI

IPC: B01J23/42 ,  B01J21/04 ,  B01J21/10 ,  B01J23/58 ,  B01J35/00 ,  B01J35/45 ,  B01J35/58 ,  B01J37/02 ,  B01J37/04 ,  B01J37/12

Abstract: A catalyst composition comprising a) platinum; and b) at least one composite, wherein platinum is supported on the composite, wherein the composite comprises: ceria (calculated as CeO2) in an amount of 5.0 to 50 wt. %, based on the total weight of the composite; alumina (calculated as Al2O3) in an amount of IO to 80 wt. %, based on the total weight of the composite; and magnesia (calculated as MgO) in an amount of to 80 wt. %, based on the total weight of the composite. The present invention also provides a process for the preparation of the catalyst composition. The present invention further provides a catalytic article and its preparation.

公开(公告)号：US20230219069A1

公开(公告)日：2023-07-13

申请号：US17997750

申请日：2021-05-14

Applicant: BASF CORPORATION ,  UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION INC.

Inventor： Fudong LIU ,  Yuejin LI ,  Shaohua XIE ,  Ge SONG

IPC: B01J23/847 ,  B01J23/10 ,  B01J23/20 ,  B01J23/34 ,  B01J23/30 ,  B01J35/04 ,  B01J37/02 ,  B01J37/08 ,  F01N3/20 ,  F01N3/28 ,  B01D53/94

CPC classification number: B01J23/8474 ,  B01J23/10 ,  B01J23/20 ,  B01J23/34 ,  B01J23/30 ,  B01J35/04 ,  B01J37/0205 ,  B01J37/024 ,  B01J37/088 ,  F01N3/2066 ,  F01N3/2825 ,  F01N3/2842 ,  B01D53/9418 ,  B01D53/9477 ,  F01N2610/02 ,  F01N2610/1453 ,  F01N2370/04 ,  F01N2330/30 ,  B01D2255/20761 ,  B01D2255/2073 ,  B01D2255/20776 ,  B01D2255/207 ,  B01D2255/2065 ,  B01D2255/20738 ,  B01D2255/2094 ,  B01D2255/911 ,  B01D2255/9155

Abstract: The present disclosure provides SCR catalyst compositions capable of reducing nitrogen oxide (NOx) emissions in engine exhaust. The catalyst compositions include a reducible metal oxide support containing ceria, one or more transition metal oxides as a redox promotor; and an oxide of niobium, tungsten, silicon, molybdenum, or a combination thereof as an acidic promotor. The redox promotor and the acid promotor are both supported on the reducible metal oxide support. Further provided are SCR catalyst articles coated with such compositions, processes for preparing such catalyst compositions and articles, an exhaust gas treatment system including such catalyst articles, and methods for reducing NOx in an exhaust gas stream using such catalyst articles and systems.

公开(公告)号：US20210114007A1

公开(公告)日：2021-04-22

申请号：US15733739

申请日：2019-04-10

Applicant: BASF Corporation

Inventor： Yuejin LI

IPC: B01J29/80 ,  F01N3/20 ,  B01J37/08 ,  B01J37/04 ,  B01J29/85

Abstract: The present disclosure generally provides selective catalytic reduction (SCR) catalyst compositions, catalyst articles and catalyst systems including such catalyst articles for treating engine exhaust gas. In particular, the SCR catalyst composition includes a first zeolite and a second zeolite and has not been subjected to temperatures above 650° C. The first zeolite includes a promoter metal and has a first framework structure and at least a portion of the second zeolite is in a form selected from H+ form, NH4+ form, alkali metal form, alkaline earth metal form, and combinations thereof and has a second framework structure. The first framework structure and the second framework structure are different.

公开(公告)号：US20240424445A1

公开(公告)日：2024-12-26

申请号：US18692603

申请日：2022-09-08

Applicant: BASF CORPORATION

Inventor： Xiaolai ZHENG ,  Stephen JOHNSON ,  Yipeng SUN ,  Yuejin LI ,  Shiang SUNG ,  Chunxin JI ,  Pascaline TRAN ,  Pramod RAVINDRAN ,  Karifala DUMBUYA

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

Abstract: The present invention provides a catalytic article comprising a substrate: a bottom washcoat deposited on the substrate; and a top washcoat deposited on the bottom coat, wherein the bottom washcoat comprises a zoned configuration, wherein the zoned configuration comprises a first zone and a second zone, wherein the first zone comprises palladium supported on ceria-zirconia mixed oxide or alumina or both, wherein the second zone comprises platinum supported on a ceria-alumina composite, wherein the top washcoat comprises rhodium supported on an alumina or a ceria-alumina composite. The present invention also provides a process for the preparation of the catalytic article, and it use for purifying a gaseous exhaust stream.

公开(公告)号：US20240253018A1

公开(公告)日：2024-08-01

申请号：US18103053

申请日：2023-01-30

Applicant: GM Global Technology Operations LLC ,  BASF Corporation

Inventor： Yuntao GU ,  Michelle H. WIEBENGA ,  Raneen TAHA ,  Yuejin LI ,  Xiaolai ZHENG

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

CPC classification number: B01J23/63 ,  B01D53/945 ,  B01J21/04 ,  B01J23/10 ,  B01J35/19 ,  B01J35/23 ,  B01J35/56 ,  B01J37/0211 ,  B01J37/0236 ,  B01J37/024 ,  B01J37/08 ,  F01N3/101 ,  F01N3/2803 ,  B01D2255/1025 ,  B01D2255/9155 ,  B01D2257/404 ,  B01D2257/502 ,  B01D2257/702 ,  B01D2258/01 ,  F01N2370/02

Abstract: A method of manufacturing a layered catalyst for purifying an exhaust gas stream includes introducing a mixture of colloidal ceria, alumina particles, and a liquid medium into a drying chamber via an atomizer to form atomized droplets of the mixture. A drying gas is introduced into the drying chamber such that the atomized droplets contact the drying gas, the liquid medium is removed from the atomized droplets, and ceria nanoparticles deposit on the alumina particles to form composite catalyst support particles. A catalyst precursor including a rhodium precursor and colloidal ceria is applied to the composite catalyst support particles. The composite catalyst support particles and the catalyst precursor are heated to form the layered catalyst. The layered catalyst includes an alumina substrate, a ceria nanoparticle layer extending substantially continuously over the alumina substrate, and a rhodium catalyst layer including an atomic dispersion of rhodium adsorbed on the ceria nanoparticle layer.