公开(公告)号：US20240109036A1

公开(公告)日：2024-04-04

申请号：US18274503

申请日：2022-02-01

Applicant: BASF Corporation

Inventor： Manale Maalouf ,  Florian Waltz ,  Karifala Dumbuya ,  Marcus Hilgendorff ,  Markus Kinne ,  Thomas Schmitz

IPC: B01D53/94

CPC classification number: B01D53/9477 ,  B01D53/9418 ,  B01D53/9436 ,  B01D53/945 ,  B01D2255/102 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/908 ,  B01D2255/9155 ,  B01D2257/404 ,  B01D2257/406 ,  B01D2258/012

Abstract: The present invention relates to an exhaust gas treatment system for reducing ammonia emission from a gasoline engine comprising a three-way conversion catalyst (TWC) or a four-way conversion catalyst (FWC), further comprising an ammonia oxidation catalyst (AMOx) or a selective catalytic reduction catalyst (SCR), and a method of treating exhaust gas from a gasoline engine with an exhaust gas treatment system capable of removing ammonia.

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：US11660586B2

公开(公告)日：2023-05-30

申请号：US17309015

申请日：2019-10-30

Applicant: BASF Corporation

Inventor： Matthias Peter ,  Karifala Dumbuya ,  Miriam Schubert ,  Ahmad Moini ,  Yu Dai ,  Stefan Maurer ,  Haiyang Zhu ,  Yi Liu ,  Wen-Mei Xue ,  Ming-Ming Wei ,  Maria Heenemann

IPC: B01J29/76 ,  B01D53/94 ,  B01J37/02 ,  B01J37/04 ,  B01J37/08

CPC classification number: B01J29/763 ,  B01D53/9418 ,  B01J37/0215 ,  B01J37/04 ,  B01J37/082 ,  B01D2255/2065 ,  B01D2255/2092 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/20761 ,  B01D2255/30 ,  B01D2255/50

Abstract: A process for preparing a catalyst comprising a zeolitic material comprising copper, the process comprising (i) preparing an aqueous mixture comprising water, a zeolitic material comprising copper, a source of copper other than the zeolitic material comprising copper, and a non-zeolitic oxidic material selected from the group consisting of alumina, silica, titania, zirconia, ceria, a mixed oxide comprising one or more of Al, Si, Ti, Zr, and Ce and a mixture of two or more thereof; (ii) disposing the mixture obtained in (i) on the surface of the internal walls of a substrate comprising an inlet end, an outlet end, a substrate axial length extending from the inlet end to the outlet end and a plurality of passages defined by internal walls of the substrate extending therethrough; and optionally drying the substrate comprising the mixture disposed thereon; (iii) calcining the substrate obtained in (ii).

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：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.