公开(公告)号：US20200230582A1

公开(公告)日：2020-07-23

申请号：US16844048

申请日：2020-04-09

Applicant: BASF CORPORATION

Inventor： Joseph A Patchett ,  Xinyi Wei

IPC: B01J29/072 ,  B01J29/068 ,  B01J23/10 ,  B01J23/58 ,  B01J23/22 ,  B01J35/00 ,  B01J35/04 ,  B01D53/94 ,  F01N3/20 ,  F01N3/08 ,  F01N3/28 ,  F01N3/035

Abstract: The present invention is directed to selective catalytic reduction catalysts that combine SCR activity with NOx absorber activity. In particular, the disclosed catalytic article includes a substrate having a first and a second material disposed thereon, wherein the first material includes a selective catalytic reduction (SCR) catalyst composition and the second material includes a nitrogen oxides (NOx) absorber composition, wherein the NOx absorber composition does not substantially oxidize ammonia, and wherein the catalytic article is effective to abate NOx from an engine exhaust gas stream. Emission treatment systems for treating an exhaust gas including a catalytic article of the invention are provided, particularly systems that include an injector adapted for the addition of ammonia to the exhaust gas stream located upstream of the catalytic article.

公开(公告)号：US11266977B2

公开(公告)日：2022-03-08

申请号：US16973325

申请日：2019-07-30

Applicant: BASF Corporation

Inventor： Edgar Viktor Huennekes ,  Joseph A Patchett ,  Petra Cordes ,  Kevin David Beard ,  Jan Martin Becker

IPC: F01N3/20 ,  F01N3/28 ,  B01J21/06 ,  B01J23/22 ,  B01J23/847 ,  B01J35/04 ,  B01J35/10 ,  B01J37/02 ,  B01J37/04

Abstract: The present invention relates to a selective catalytic reduction catalyst for the treatment of an exhaust gas of a diesel engine comprising (i) a flow-through 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 flow-through substrate extending therethrough; (II) a coating disposed on the surface of the internal walls of the substrate, where-in the surface defines the interface between the passages and the internal walls, wherein the coating comprises a vanadium oxide supported on an oxidic material comprising titania, and further comprises a mixed oxide of vanadium and one or more of iron, erbium, bismuth, cerium, europium, gadolinium, holmium, lanthanum, lutetium, neodymium, praseodymium, promethium, samarium, scandium, terbium, thulium, ytterbium, yttrium, molybdenum, tungsten, manganese, cobalt, nickel, copper, aluminum and antimony.

公开(公告)号：US11331653B2

公开(公告)日：2022-05-17

申请号：US16844048

申请日：2020-04-09

Applicant: BASF CORPORATION

Inventor： Joseph A Patchett ,  Xinyi Wei

IPC: B01D53/94 ,  B01J29/072 ,  B01J29/068 ,  B01J23/10 ,  B01J23/58 ,  B01J23/22 ,  B01J35/00 ,  B01J35/04 ,  F01N3/08 ,  F01N3/035 ,  F01N3/20 ,  F01N3/28

Abstract: The present invention is directed to selective catalytic reduction catalysts that combine SCR activity with NOx absorber activity. In particular, the disclosed catalytic article includes a substrate having a first and a second material disposed thereon, wherein the first material includes a selective catalytic reduction (SCR) catalyst composition and the second material includes a nitrogen oxides (NOx) absorber composition, wherein the NOx absorber composition does not substantially oxidize ammonia, and wherein the catalytic article is effective to abate NOx from an engine exhaust gas stream. Emission treatment systems for treating an exhaust gas including a catalytic article of the invention are provided, particularly systems that include an injector adapted for the addition of ammonia to the exhaust gas stream located upstream of the catalytic article.

公开(公告)号：US20240216864A1

公开(公告)日：2024-07-04

申请号：US18557075

申请日：2022-04-27

Applicant: BASF Corporation

Inventor： Robert Dorner ,  Jan Martin Becker ,  Joseph A Patchett

IPC: B01D53/94 ,  B01J23/42 ,  B01J23/44 ,  B01J29/16 ,  B01J29/46 ,  B01J29/67 ,  B01J29/76 ,  B01J29/80 ,  B01J35/00 ,  B01J35/57 ,  B01J37/00 ,  B01J37/02 ,  B01J37/10 ,  C10G11/04 ,  F01N3/24

CPC classification number: B01D53/9418 ,  B01D53/9472 ,  B01D53/9477 ,  B01J23/42 ,  B01J23/44 ,  B01J29/166 ,  B01J29/46 ,  B01J29/67 ,  B01J29/7615 ,  B01J29/763 ,  B01J29/80 ,  B01J35/19 ,  B01J35/57 ,  B01J37/0009 ,  B01J37/0201 ,  B01J37/0246 ,  B01J37/0248 ,  B01J37/10 ,  C10G11/04 ,  F01N3/24 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/502 ,  B01D2255/504 ,  B01D2255/9032 ,  B01D2257/404 ,  B01D2258/012 ,  B01J2229/18

Abstract: The present invention relates to a catalyst for the selective catalytic reduction of NOx and for the cracking and conversion of a hydrocarbon, comprising 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: a coating disposed on the surface of the internal walls of the substrate, said coating comprising a platinum group metal, an 8-membered ring pore zeolitic material comprising one or more of copper and iron, and further comprising a 10- or more membered ring pore zeolitic material.

公开(公告)号：US20240167410A1

公开(公告)日：2024-05-23

申请号：US18549242

申请日：2022-03-09

Applicant: BASF Corporation

Inventor： Jiadi Zhang ,  Yijiang Wu ,  Liang Chen ,  Shuxin Lv ,  Yu Zhang ,  Edgar Viktor Huennekes ,  Kevin Beard ,  Joseph A Patchett ,  Jan Martin Becker ,  Martin Kalwei

IPC: F01N3/28 ,  B01D53/94 ,  B01J23/22 ,  B01J29/76 ,  B01J35/00 ,  B01J35/57 ,  B01J35/61 ,  B01J37/02 ,  B01J37/08 ,  F01N3/035 ,  F01N3/10 ,  F01N3/20

CPC classification number: F01N3/2803 ,  B01D53/9418 ,  B01D53/9472 ,  B01J23/22 ,  B01J29/7615 ,  B01J35/19 ,  B01J35/57 ,  B01J35/617 ,  B01J37/0228 ,  B01J37/0236 ,  B01J37/08 ,  F01N3/035 ,  F01N3/101 ,  F01N3/106 ,  F01N3/2066 ,  B01D2255/20723 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/502 ,  B01D2255/707 ,  B01D2255/9035 ,  B01D2255/9155 ,  B01D2255/9207 ,  B01D2257/404 ,  B01D2258/012 ,  F01N2370/04

Abstract: The present invention relates to a catalytic article for purifying an exhaust gas containing nitrogen oxides, which comprises a first region containing a vanadium-based SCR catalyst, a second region containing a metal-promoted molecular sieve catalyst, and a third region containing a vanadium-based SCR catalyst, wherein at least part of the second region is located downstream of at least part of the first region and upstream of at least part of the third region in the exhaust gas flow direction, provided that no part of the second region is located upstream of the first region or downstream of the third region. The present invention also relates to a method and a system for treatment of an exhaust gas containing nitrogen oxides by selective catalytic reduction using the catalytic article.