公开(公告)号：US20230143338A1

公开(公告)日：2023-05-11

申请号：US17907557

申请日：2021-04-09

Applicant: BASF CORPORATION

Inventor： Kevin BEARD ,  Edgar Viktor HUENNEKES ,  Jan Martin BECKER ,  Ruediger WOLFF ,  Petra CORDES

IPC: B01D53/94 ,  B01J29/76 ,  B01J35/00 ,  B01J23/46 ,  B01J21/08 ,  B01J37/02

CPC classification number: B01D53/9463 ,  B01D53/9418 ,  B01D53/9436 ,  B01J21/08 ,  B01J23/464 ,  B01J29/763 ,  B01J35/0006 ,  B01J37/0246

Abstract: The present invention relates to a catalyst for the oxidation of NO, for the oxidation of ammonia and for the selective catalytic reduction of NOx, comprising a substrate, a first coating comprising one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron; and a second coating comprising a platinum group metal component supported on a non-zeolitic oxidic material, wherein the second coating further comprises a zeolitic material comprising one or more of copper and iron.

公开(公告)号：US20210180500A1

公开(公告)日：2021-06-17

申请号：US17257953

申请日：2019-07-24

Applicant: BASF Corporation

Inventor： Edgar Viktor HUENNEKES ,  Kevin David BEARD ,  Petra CORDES ,  Ruediger WOLFF ,  Jan Martin BECKER

IPC: F01N3/20 ,  B01J37/02 ,  B01J21/06 ,  B01J23/22

Abstract: An SCR catalyst for treating diesel exhaust gas has: a flow-through substrate with 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 flow through substrate extending therethrough; a first coating disposed on the internal wall surface of the substrate, the surface defining the interface between the internal walls and passages, the first coating extending over 40 to 100% of the substrate axial length, the first coating having an 8-membered ring pore zeolitic material with copper and/or iron; a second coating extending over 20 to 100% of the substrate axial length, the second coating having a first oxidic material with titania, wherein at least 75 wt. % of the second coating is titania, calculated as TiO2, and 0 to 0.01 wt. % of the second coating is vanadium oxides, calculated as V2O5.

公开(公告)号：US20220288563A1

公开(公告)日：2022-09-15

申请号：US17594838

申请日：2020-05-05

Applicant: BASF Corporation

Inventor： Edgar Viktor HUENNEKES ,  Petra CORDES ,  Jan Martin BECKER ,  Ruediger WOLFF ,  Joseph A. PATCHETT ,  Nicholas MCGUIRE ,  Edith SCHNEIDER ,  Kevin BEARD

IPC: B01J23/22 ,  B01J23/30 ,  B01J23/10 ,  B01J21/08 ,  B01J35/00 ,  B01J35/02 ,  B01J37/04 ,  B01J37/02 ,  B01J37/08

Abstract: The present invention relates to an aqueous suspension comprising water, a source of one or more of a vanadium oxide and a tungsten oxide, and particles of an oxidic support; wherein the particles of the aqueous suspension exhibit a polymodal particle size distribution characterized by a particle size distribution curve comprising a first peak with a maximum M(I) in the range of from 0.5 to 15 micrometers and a second peak with a maximum M(II) in the range of from 1 to 40 micrometers, wherein (M(I)/μm):(M(II)/μm)