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公开(公告)号：US11633726B2
公开(公告)日：2023-04-25
申请号：US16810996
申请日：2020-03-06
Applicant: BASF Corporation
Inventor： Ivan Petrovic , Subramanian Prasad , Joseph Palamara
Abstract: The present disclosure generally provides a catalyst composition comprising a zeolite containing iron and/or copper with a reduced amount of extra-framework aluminum. The catalyst composition is useful to catalyze the reduction of nitrogen oxides in exhaust gas in the presence of a reductant.
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公开(公告)号：US20190168199A1
公开(公告)日：2019-06-06
申请号：US16323154
申请日：2017-08-04
Applicant: BASF Corporation
Inventor： Jeff H. Yang , Wen-Mei Xue , Stanley A. Roth , Kenneth E. Voss , Qi Fu , Subramanian Prasad , Barbara K. Slawski , Jaya L. Mohanan , Sandip D. Shah
IPC: B01J29/76 , B01J35/00 , B01J35/04 , B01J37/30 , B01J37/06 , B01J37/00 , B01J37/10 , B01J37/02 , B01D53/94 , F01N3/20 , F01N3/035 , F01N3/10
Abstract: Certain selective catalytic reduction (SCR) articles, systems and methods provide for high NOx conversion while at the same time low N2O formation. The articles, systems and methods are suitable for instance for the treatment of exhaust gas of diesel engines. Certain articles have zoned coatings disposed thereon, for example, a zoned coating comprising an upstream zone comprising a coating layer comprising a steam-activated iron-containing molecular sieve and a downstream zone comprising a coating layer comprising a high copper-containing molecular sieve.
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公开(公告)号：US11344868B2
公开(公告)日：2022-05-31
申请号：US16323154
申请日：2017-08-04
Applicant: BASF Corporation
Inventor： Jeff H. Yang , Wen-Mei Xue , Stanley A. Roth , Kenneth E. Voss , Qi Fu , Subramanian Prasad , Barbara K. Slawski , Jaya L. Mohanan , Sandip D. Shah
IPC: B01J29/072 , B01J29/76 , B01J37/02 , B01J35/00 , B01J37/00 , B01D53/94 , B01J37/08 , C01B39/02 , F01N3/20 , B01J35/04 , B01J37/06 , B01J37/10 , B01J37/30 , F01N3/035 , F01N3/10
Abstract: Certain selective catalytic reduction (SCR) articles, systems and methods provide for high NOx conversion while at the same time low N2O formation. The articles, systems and methods are suitable for instance for the treatment of exhaust gas of diesel engines. Certain articles have zoned coatings disposed thereon, for example, a zoned coating comprising an upstream zone comprising a coating layer comprising a steam-activated iron-containing molecular sieve and a downstream zone comprising a coating layer comprising a high copper-containing molecular sieve.
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公开(公告)号：US20200206723A1
公开(公告)日：2020-07-02
申请号：US16810996
申请日：2020-03-06
Applicant: BASF Corporation
Inventor： Ivan Petrovic , Subramanian Prasad , Joseph Palamara
Abstract: The present disclosure generally provides a catalyst composition comprising a zeolite containing iron and/or copper with a reduced amount of extra-framework aluminum. The catalyst composition is useful to catalyze the reduction of nitrogen oxides in exhaust gas in the presence of a reductant.
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公开(公告)号：US09802182B2
公开(公告)日：2017-10-31
申请号：US14205704
申请日：2014-03-12
Applicant: BASF Corporation
Inventor： Subramanian Prasad , Martin C. Wende , Jaya L. Mohanan
IPC: B01J29/06 , B01J27/182 , B01D53/56 , B01J29/85 , B01D53/94 , B01D53/86 , B01J35/00 , B01J37/02 , B01J29/76 , B01J29/70 , B01J35/04
CPC classification number: B01J29/85 , B01D53/8625 , B01D53/8628 , B01D53/9413 , B01D53/9418 , B01D2255/2065 , B01D2255/20738 , B01D2255/20746 , B01D2255/20753 , B01D2255/20761 , B01D2255/50 , B01J29/7065 , B01J29/763 , B01J35/002 , B01J35/04 , B01J37/0246 , B01J2229/183 , B01J2229/186 , B01J2229/24 , B01J2229/30 , B01J2229/38
Abstract: Described are catalyst materials and catalytic articles comprising a metal exchanged SAPO material comprising a plurality of substitutional sites consisting essentially of Si(4Al) sites and substantially free of Si(0Al) sites. The materials and catalytic articles are useful in methods and systems to catalyze the reduction of nitrogen oxides in the presence of a reductant.
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Patent Agency Ranking
公开(公告)号：US11724248B2
公开(公告)日：2023-08-15
申请号：US17206963
申请日：2021-03-19
Applicant: BASF Corporation
Inventor： Wen-Mei Xue , Xiaofan Yang , Haiyang Zhu , Stanley Roth , Jeff Yang , Subramanian Prasad , Ahmad Moini
CPC classification number: B01J29/044 , B01D53/9418 , B01D53/9468 , B01J23/42 , B01J35/04 , G01N21/3563 , B01D2255/102 , B01D2255/20761 , B01D2255/9022 , B01D2255/9155 , G01N2021/3595
Abstract: 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.
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公开(公告)号：US11465134B2
公开(公告)日：2022-10-11
申请号：US16810996
申请日：2020-03-06
Applicant: BASF Corporation
Inventor： Ivan Petrovic , Subramanian Prasad , Joseph Palamara
Abstract: The present disclosure generally provides a catalyst composition comprising a zeolite containing iron and/or copper with a reduced amount of extra-framework aluminum. The catalyst composition is useful to catalyze the reduction of nitrogen oxides in exhaust gas in the presence of a reductant.
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公开(公告)号：US09931620B2
公开(公告)日：2018-04-03
申请号：US15720567
申请日：2017-09-29
Applicant: BASF Corporation
Inventor： Subramanian Prasad , Martin C. Wende , Jaya L. Mohanan
IPC: B01J29/06 , B01J27/182 , B01J29/85 , B01D53/94 , B01J29/70 , B01J29/76 , B01D53/86 , B01J37/02 , B01J35/00 , B01J35/04
CPC classification number: B01J29/85 , B01D53/8625 , B01D53/8628 , B01D53/9413 , B01D53/9418 , B01D2255/2065 , B01D2255/20738 , B01D2255/20746 , B01D2255/20753 , B01D2255/20761 , B01D2255/50 , B01J29/7065 , B01J29/763 , B01J35/002 , B01J35/04 , B01J37/0246 , B01J2229/183 , B01J2229/186 , B01J2229/24 , B01J2229/30 , B01J2229/38
Abstract: Described are catalyst materials and catalytic articles comprising a metal exchanged SAPO material comprising a plurality of substitutional sites consisting essentially of Si(4Al) sites and substantially free of Si(0Al) sites. The materials and catalytic articles are useful in methods and systems to catalyze the reduction of nitrogen oxides in the presence of a reductant.
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公开(公告)号：US20180021764A1
公开(公告)日：2018-01-25
申请号：US15720567
申请日：2017-09-29
Applicant: BASF Corporation
Inventor： Subramanian Prasad , Martin C. Wende , Jaya L. Mohanan
CPC classification number: B01J29/85 , B01D53/8625 , B01D53/8628 , B01D53/9413 , B01D53/9418 , B01D2255/2065 , B01D2255/20738 , B01D2255/20746 , B01D2255/20753 , B01D2255/20761 , B01D2255/50 , B01J29/7065 , B01J29/763 , B01J35/002 , B01J35/04 , B01J37/0246 , B01J2229/183 , B01J2229/186 , B01J2229/24 , B01J2229/30 , B01J2229/38
Abstract: Described are catalyst materials and catalytic articles comprising a metal exchanged SAPO material comprising a plurality of substitutional sites consisting essentially of Si(4Al) sites and substantially free of Si(0Al) sites. The materials and catalytic articles are useful in methods and systems to catalyze the reduction of nitrogen oxides in the presence of a reductant.
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公开(公告)号：US20150343375A1
公开(公告)日：2015-12-03
申请号：US14821393
申请日：2015-08-07
Applicant: BASF CORPORATION
Inventor： Ahmad Moini , Saeed Alerasool , Subramanian Prasad
CPC classification number: B01D53/8628 , B01D53/9418 , B01D2255/50 , B01J29/7015 , B82Y30/00 , C01B39/04 , C01B39/305 , C01B39/48
Abstract: Molecular sieves, improved methods for their synthesis, and catalysts, systems and methods of using these molecular sieves as catalysts in a variety of processes such as abating pollutants in exhaust gases and conversion processes are described. The molecular sieves are made using a tailored colloid including an alumina source, a silica source and a structure directing agent.
Abstract translation: 描述了分子筛，它们合成的改进方法以及在各种方法中使用这些分子筛作为催化剂的催化剂，体系和方法，例如减少废气中的污染物和转化过程。 分子筛使用包括氧化铝源，二氧化硅源和结构导向剂的定制胶体制备。
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