公开(公告)号：US20180043336A1

公开(公告)日：2018-02-15

申请号：US15555142

申请日：2016-03-03

申请人： BASF Corporation

发明人： Gerd GRUBERT ,  Torsten NEUBAUER ,  Alfred PUNKE ,  Marcus HILGENDORFF ,  Marko BUCHHOLZ ,  Matthew CAUDLE

IPC分类号： B01J23/46 ,  B01J37/08 ,  B01J35/00 ,  B01J37/02 ,  B01D53/94 ,  B01J23/10

CPC分类号： B01J23/464 ,  B01D53/9418 ,  B01D53/9422 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/2047 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/9022 ,  B01D2255/9025 ,  B01D2255/904 ,  B01D2255/91 ,  B01D2257/404 ,  B01D2258/012 ,  B01J21/04 ,  B01J23/10 ,  B01J23/63 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0036 ,  B01J37/0201 ,  B01J37/0236 ,  B01J37/0244 ,  B01J37/0248 ,  B01J37/038 ,  B01J37/08 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/2066 ,  F01N2330/30

摘要： A lean NOx trap composition for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC), and carbon monoxide (CO), and the trapping and reduction of nitrogen oxides (NOx) is disclosed. The lean NOx trap composition can have a washcoat layer on a carrier substrate including a first support material comprising greater than 50% by weight of a reducible metal oxide; 10 to 30% by weight of alkaline earth metal supported on a second support material comprising a refractory metal oxide and 50% or less by weight of a reducible metal oxide and; and a platinum group metal component supported on at least one of the first support material and/or the second support material. A portion of the first support material may further include 0.5% to 10% by weight of an alkaline earth metal.

公开(公告)号：US20180163596A1

公开(公告)日：2018-06-14

申请号：US15574910

申请日：2016-05-18

申请人： BASF CORPORATION

发明人： Alfred PUNKE ,  Gerd GRUBERT ,  Marcus HILGENDORFF ,  Torsten NEUBAUER ,  Matthew CAUDLE ,  Yuejin LI

IPC分类号： F01N3/28 ,  B01D53/94 ,  B01J23/44 ,  B01J23/42 ,  B01J37/02 ,  B01J29/76 ,  B01J29/78 ,  B01J35/04 ,  B01J37/04 ,  B01J37/08 ,  B01J35/00 ,  F01N3/20 ,  F01N3/035 ,  F01N13/00

CPC分类号： F01N3/2803 ,  B01D53/9418 ,  B01D53/9422 ,  B01D53/944 ,  B01D53/9477 ,  B01D53/9481 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/50 ,  B01D2255/9032 ,  B01D2255/9155 ,  B01D2255/9202 ,  B01J23/42 ,  B01J23/44 ,  B01J29/763 ,  B01J29/783 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0234 ,  B01J37/0236 ,  B01J37/0244 ,  B01J37/04 ,  B01J37/08 ,  F01N3/035 ,  F01N3/2066 ,  F01N13/009 ,  F01N2510/068 ,  F01N2510/0682 ,  Y02T10/24

摘要： The present invention relates to catalyzed soot filter comprising a porous wall flow substrate, a catalyst for selective catalytic reduction (SCR), a palladium component, and a platinum component, the wall flow substrate comprising an inlet end, an outlet end, a substrate axial length extending between the inlet end and the outlet end, and a plurality of channels defined by internal walls of the wall flow substrate, wherein the plurality of channels comprise inlet channels having an open inlet end and a closed outlet end, and outlet channels having a closed inlet end and an open outlet end, and the SCR catalyst is provided on the entire surface of the inlet channel walls and on at least a portion of the surface of the pores within the channel walls underneath the surface of the channel walls coated with the SCR catalyst.

公开(公告)号：US20220152595A1

公开(公告)日：2022-05-19

申请号：US17593379

申请日：2020-03-19

申请人： BASF Corporation

发明人： Shiang SUNG ,  Markus KOEGEL ,  Gerd GRUBERT ,  Sven Jare LOHMEIER ,  Alfred PUNKE

IPC分类号： B01J23/656 ,  B01J23/63 ,  B01J37/03 ,  B01J37/02 ,  B01J35/04 ,  B01D53/94 ,  F01N3/20 ,  F01N3/28

摘要： The present disclosure is directed to a method for treating a gaseous exhaust stream containing nitrogen oxides (NOx) from a diesel or lean-burn gasoline engine following a cold-start of the engine The method involves contact of the gaseous exhaust stream with at least a low temperature NOx adsorber (LT-NA) component. The LT-NA component includes a rare earth metal component, a platinum group metal (PGM) component, and a dopant. The present disclosure is also directed to a method of modulating a NOx adsorption/desorption profile of an LT-NA composition, a NOx desorption temperature range of an LT-NA composition, or both.

公开(公告)号：US20180043335A1

公开(公告)日：2018-02-15

申请号：US15555131

申请日：2016-03-03

申请人： BASF Corporation

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

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

CPC分类号： 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

摘要： 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.