公开(公告)号：US11724248B2

公开(公告)日：2023-08-15

申请号：US17206963

申请日：2021-03-19

申请人： BASF Corporation

发明人： Wen-Mei Xue ,  Xiaofan Yang ,  Haiyang Zhu ,  Stanley Roth ,  Jeff Yang ,  Subramanian Prasad ,  Ahmad Moini

IPC分类号： B01J29/04 ,  B01D53/94 ,  B01J23/42 ,  B01J35/04 ,  G01N21/3563 ,  G01N21/35

CPC分类号： B01J29/044 ,  B01D53/9418 ,  B01D53/9468 ,  B01J23/42 ,  B01J35/04 ,  G01N21/3563 ,  B01D2255/102 ,  B01D2255/20761 ,  B01D2255/9022 ,  B01D2255/9155 ,  G01N2021/3595

摘要： The present disclosure relates to copper-containing molecular sieve catalysts that are highly suitable for the treatment of exhaust containing NOx pollutants. The copper-containing molecular sieve catalysts contain ion-exchanged copper as Cu+2 and Cu(OH)+1, and DRIFT spectroscopy of the catalyst exhibits perturbed T-O-T vibrational peaks corresponding to the Cu+2 and Cu(OH)+1. In spectra taken of the catalytic materials, a ratio of the Cu+2 to the Cu(OH)+1 peak integration areas preferably can be ≥1. The copper-containing molecular sieve catalysts are aging stable such that the peak integration area percentage of the Cu+2 peak (area Cu+2/(area Cu+2+area Cu(OH)+1)) increases by ≤20% upon aging at 800° C. for 16 hours in the presence of 10% H2O/air, compared to the fresh state.

公开(公告)号：US11660586B2

公开(公告)日：2023-05-30

申请号：US17309015

申请日：2019-10-30

申请人： BASF Corporation

发明人： 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分类号： B01J29/76 ,  B01D53/94 ,  B01J37/02 ,  B01J37/04 ,  B01J37/08

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

摘要： 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：US20180036716A1

公开(公告)日：2018-02-08

申请号：US15555233

申请日：2016-03-03

申请人： BASF Corporation

发明人： Xinyi Wei ,  Stanley A. Roth ,  Haiyang Zhu

IPC分类号： B01J23/42 ,  B01J35/00 ,  B01J37/10 ,  B01J37/00 ,  B01J37/02 ,  B01J23/44 ,  B01J35/04

摘要： Emissions treatment systems of combustion engines are provided, which comprise a platinum-containing catalyst that is degreened during production, which is before exposure to operating conditions of a vehicle having a diesel engine. The platinum-containing catalyst, in the form of a platinum component on a high surface area refractory metal oxide support, exhibits a vibration frequency of about 2085 to about 2105 cm−1 as measured by CO-DRIFTS. Such catalytic material is essentially-free of platinum oxide species found at greater than about 2110 cm−1 as measured by CO-DRIFTS. Such catalysts can provide excellent and consistent conversion of nitrogen oxide (NO) to nitrogen dioxide (NO2).

公开(公告)号：US20200179907A1

公开(公告)日：2020-06-11

申请号：US16791394

申请日：2020-02-14

申请人： BASF Corporation

发明人： Xinyi Wei ,  Stanley A. Roth ,  Haiyang Zhu

IPC分类号： B01J23/42 ,  B01J37/02 ,  B01J37/00 ,  B01J35/04 ,  B01J35/00 ,  B01J23/44 ,  B01J37/10 ,  F01N3/10 ,  B01D53/94 ,  F01N3/035

摘要： Emissions treatment systems of combustion engines are provided, which comprise a platinum-containing catalyst that is degreened during production, which is before exposure to operating conditions of a vehicle having a diesel engine. The platinum-containing catalyst, in the form of a platinum component on a high surface area refractory metal oxide support, exhibits a vibration frequency of about 2085 to about 2105 cm−1 as measured by CO-DRIFTS. Such catalytic material is essentially-free of platinum oxide species found at greater than about 2110 cm−1 as measured by CO-DRIFTS. Such catalysts can provide excellent and consistent conversion of nitrogen oxide (NO) to nitrogen dioxide (NO2).

公开(公告)号：US11534736B2

公开(公告)日：2022-12-27

申请号：US16791394

申请日：2020-02-14

申请人： BASF Corporation

发明人： Xinyi Wei ,  Stanley A. Roth ,  Haiyang Zhu

IPC分类号： B01J21/04 ,  B01J21/06 ,  B01J21/08 ,  B01J21/12 ,  B01J23/42 ,  B01J23/44 ,  B01J35/00 ,  B01J35/04 ,  B01J37/00 ,  B01J37/02 ,  B01J37/10 ,  F01N3/035 ,  F01N3/10 ,  B01D53/94

摘要： Emissions treatment systems of combustion engines are provided, which comprise a platinum-containing catalyst that is degreened during production, which is before exposure to operating conditions of a vehicle having a diesel engine. The platinum-containing catalyst, in the form of a platinum component on a high surface area refractory metal oxide support, exhibits a vibration frequency of about 2085 to about 2105 cm−1 as measured by CO-DRIFTS. Such catalytic material is essentially-free of platinum oxide species found at greater than about 2110 cm−1 as measured by CO-DRIFTS. Such catalysts can provide excellent and consistent conversion of nitrogen oxide (NO) to nitrogen dioxide (NO2).

公开(公告)号：US10766020B2

公开(公告)日：2020-09-08

申请号：US15555233

申请日：2016-03-03

申请人： BASF Corporation

发明人： Xinyi Wei ,  Stanley A. Roth ,  Haiyang Zhu

IPC分类号： B01J23/42 ,  B01J23/44 ,  B01J35/00 ,  B01J35/04 ,  B01J37/00 ,  B01J37/02 ,  B01J37/10 ,  B01D53/94 ,  F01N3/035 ,  F01N3/10

摘要： Emissions treatment systems of combustion engines are provided, which comprise a platinum-containing catalyst that is degreened during production, which is before exposure to operating conditions of a vehicle having a diesel engine. The platinum-containing catalyst, in the form of a platinum component on a high surface area refractory metal oxide support, exhibits a vibration frequency of about 2085 to about 2105 cm−1 as measured by CO-DRIFTS. Such catalytic material is essentially-free of platinum oxide species found at greater than about 2110 cm−1 as measured by CO-DRIFTS. Such catalysts can provide excellent and consistent conversion of nitrogen oxide (NO) to nitrogen dioxide (NO2).