公开(公告)号：US11448110B2

公开(公告)日：2022-09-20

申请号：US16323145

申请日：2017-08-04

Applicant: BASF Corporation

Inventor： Wen-Mei Xue ,  Jeff H. Yang ,  Stanley A. Roth ,  Kenneth E. Voss ,  Sandip D. Shah ,  Jaya L. Mohanan

IPC: F01N3/20 ,  B01J29/072 ,  B01J37/02 ,  B01J37/08 ,  B01J35/00 ,  B01J29/76 ,  B01D53/94 ,  B01J29/06 ,  B01J29/068 ,  B01J29/80 ,  B01J29/72 ,  B01J29/74 ,  B01J29/00 ,  B01J29/54 ,  B01J29/56 ,  B01J37/30

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 containing copper-containing molecular sieves disposed thereon, where for example a concentration of catalytic copper in an upstream zone is lower than the concentration of catalytic copper in a downstream zone.

公开(公告)号：US10792648B2

公开(公告)日：2020-10-06

申请号：US15522440

申请日：2015-10-30

Applicant: BASF Corporation

Inventor： Jaya L. Mohanan ,  Jeff Yang ,  Patrick Burk ,  Kenneth E. Voss

IPC: B01J29/06 ,  B01J29/76 ,  B01D53/94 ,  B01J29/80 ,  B01D53/86 ,  B01J37/02 ,  B01J35/00 ,  C01B39/48 ,  B01J35/04 ,  B01J29/87 ,  B01J29/86 ,  B01J29/83 ,  B01J29/85 ,  B01J29/84 ,  B01J29/89

Abstract: Described are compositions and catalytic articles comprising both a first molecular sieve promoted with copper and a second molecular sieve promoted with iron, the first and second molecular sieves having a d6r unit and the first molecular sieves having cubic shaped crystals with an average crystal size of about 0.5 to about 2 microns. The weight ratio of the copper-promoted molecular sieve to the iron-promoted molecular sieve can be about 1:1 to about 4:1. The catalytic articles are useful in methods and systems to catalyze the reduction of nitrogen oxides in the presence of a reductant.

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.

公开(公告)号：US20180297014A1

公开(公告)日：2018-10-18

申请号：US15981160

申请日：2018-05-16

Applicant: BASF CORPORATION

Inventor： Jaya L. Mohanan ,  Gary A. Gramiccioni ,  John Hochmuth ,  Kenneth E. Voss

IPC: B01J23/10 ,  B01D53/94 ,  B01J21/06 ,  B01J21/04 ,  B01J29/76 ,  B01J35/00 ,  B01J35/02 ,  B01J35/04 ,  B01J37/04 ,  B01J37/02 ,  B01J37/08 ,  F01N3/20

CPC classification number: B01J23/10 ,  B01D53/94 ,  B01D53/9418 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2255/206 ,  B01D2255/2061 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/9155 ,  B01D2255/9202 ,  B01D2255/9205 ,  B01J21/04 ,  B01J21/066 ,  B01J29/763 ,  B01J35/0006 ,  B01J35/0013 ,  B01J35/0073 ,  B01J35/026 ,  B01J35/04 ,  B01J37/0211 ,  B01J37/0215 ,  B01J37/0236 ,  B01J37/0248 ,  B01J37/04 ,  B01J37/086 ,  F01N3/20 ,  F01N3/2066 ,  Y02C20/10

Abstract: Described is a catalyst composition suitable for use as a selective catalytic reduction catalyst, including small-pore molecular sieve particles having a pore structure and a maximum ring size of eight tetrahedral atoms and impregnated with a promoter metal, and metal oxide particles dispersed within the small-pore molecular sieve particles and external to the pore structure of the small-pore molecular sieve particles, wherein the metal oxide particles include one or more oxides of a transition metal or lanthanide of Group 3 or Group 4 of the Periodic Table. A method for preparing the catalyst, a method for selectively reducing nitrogen oxides, and an exhaust gas treatment system are also described.

公开(公告)号：US09302256B2

公开(公告)日：2016-04-05

申请号：US14536868

申请日：2014-11-10

Applicant: BASF Corporation ,  N. E. Chemcat Corporation ,  Heesung Catalysts Corporation

Inventor： Jaya L. Mohanan ,  Patrick Burk ,  Michael Breen ,  Barbara Slawski ,  Makoto Nagata ,  Yasuyuki Banno ,  Eunseok Kim

IPC: B01J29/86 ,  B01J29/87 ,  B01D53/94 ,  F01N3/28 ,  B01J29/76 ,  B01J37/02 ,  B01J29/70 ,  B01J29/83 ,  B01J29/85 ,  F01N3/20 ,  B01J29/88

CPC classification number: B01J29/763 ,  B01D53/94 ,  B01D53/9418 ,  B01D2255/20738 ,  B01D2255/50 ,  B01D2258/012 ,  B01J29/70 ,  B01J29/76 ,  B01J29/83 ,  B01J29/85 ,  B01J29/88 ,  B01J37/0246 ,  F01N3/20 ,  F01N3/2066 ,  F01N3/208 ,  F01N2510/063 ,  Y02T10/24

Abstract: Described is a selective catalytic reduction catalyst comprising an iron-promoted 8-ring small pore molecular sieve. Systems and methods for using these iron-promoted 8-ring small molecular sieves as catalysts in a variety of processes such as abating pollutants in exhaust gases and conversion processes are also described.

公开(公告)号：US09017626B2

公开(公告)日：2015-04-28

申请号：US14208817

申请日：2014-03-13

Applicant: BASF Corporation

Inventor： Weiyong Tang ,  Jaya L. Mohanan

IPC: B01D53/94 ,  F01N3/10 ,  F01N3/24 ,  B01J21/06 ,  B01J23/22 ,  B01J23/30 ,  B01J23/00 ,  B01J23/745 ,  B01J29/06 ,  B01J29/072 ,  B01J29/70 ,  B01J29/76 ,  F01N3/20

CPC classification number: B01D53/9431 ,  B01D53/9404 ,  B01D53/9418 ,  B01D2255/2047 ,  B01D2255/2065 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/20723 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/20776 ,  B01D2255/2092 ,  B01D2255/40 ,  B01D2255/50 ,  B01D2255/9022 ,  B01D2255/9032 ,  B01D2255/911 ,  B01J21/04 ,  B01J21/063 ,  B01J21/066 ,  B01J23/02 ,  B01J23/10 ,  B01J23/22 ,  B01J23/30 ,  B01J23/72 ,  B01J23/745 ,  B01J29/061 ,  B01J29/072 ,  B01J29/7015 ,  B01J29/72 ,  B01J29/763 ,  B01J35/0006 ,  B01J37/0036 ,  B01J37/0244 ,  F01N3/10 ,  F01N3/2066 ,  F01N2510/0682 ,  F01N2510/0684 ,  F01N2570/18 ,  Y02C20/10 ,  Y02T10/24 ,  Y10S502/52712 ,  Y10S502/52713

Abstract: Described are SCR catalyst systems comprising a first SCR catalyst composition and a second SCR catalyst composition arranged in the system, the first SCR catalyst composition promoting higher N2 formation and lower N2O formation than the second SCR catalyst composition, and the second SCR catalyst composition having a different composition than the first SCR catalyst composition, the second SCR catalyst composition promoting lower N2 formation and higher N2O formation than the first SCR catalyst composition. The SCR catalyst systems are useful in methods and systems to catalyze the reduction of nitrogen oxides in the presence of a reductant.

Abstract translation: 描述了包括第一SCR催化剂组合物和布置在该体系中的第二SCR催化剂组合物的SCR催化剂体系，所述第一SCR催化剂组合物促进比第二SCR催化剂组合物更高的N 2形成和较低的N 2 O生成，并且所述第二SCR催化剂组合物具有 与第一SCR催化剂组合物不同的组成，第二SCR催化剂组合物促进比第一SCR催化剂组合物更低的N 2形成和更高的N 2 O形成。 SCR催化剂体系可用于在还原剂存在下催化还原氮氧化物的方法和系统。

公开(公告)号：US09011807B2

公开(公告)日：2015-04-21

申请号：US14056175

申请日：2013-10-17

Applicant: BASF Corporation ,  N. E. Chemcat Corporation ,  Heesung Catalysts Corporation

Inventor： Jaya L. Mohanan ,  Patrick Burk ,  Michael J. Breen ,  Barbara Slawski ,  Makoto Nagata ,  Yasuyuki Banno ,  Eunseok Kim

IPC: B01J29/072 ,  B01D53/56 ,  B01D53/94 ,  F01N3/20 ,  F01N3/28 ,  B01J29/76

CPC classification number: B01J29/763 ,  B01D53/94 ,  B01D53/9418 ,  B01D2255/20738 ,  B01D2255/50 ,  B01D2258/012 ,  B01J29/70 ,  B01J29/76 ,  B01J29/83 ,  B01J29/85 ,  B01J29/88 ,  B01J37/0246 ,  F01N3/20 ,  F01N3/2066 ,  F01N3/208 ,  F01N2510/063 ,  Y02T10/24

Abstract: Described is a selective catalytic reduction catalyst comprising an iron-promoted 8-ring small pore molecular sieve. Systems and methods for using these iron-promoted 8-ring small molecular sieves as catalysts in a variety of processes such as abating pollutants in exhaust gases and conversion processes are also described.

Abstract translation: 描述了包含铁促进的8-环小孔分子筛的选择性催化还原催化剂。 还描述了在各种过程中使用这些铁促进的8-环小分子筛作为催化剂的系统和方法，例如减少排气中的污染物和转化过程。

公开(公告)号：US20150071851A1

公开(公告)日：2015-03-12

申请号：US14536868

申请日：2014-11-10

Applicant: BASF Corporation ,  N. E. Chemcat Corporation ,  Heesung Catalysts Corporation

Inventor： Jaya L. Mohanan ,  Patrick Burk ,  Michael Breen ,  Barbara Slawski ,  Makoto Nagata ,  Yasuyuki Banno ,  Eunseok Kim

IPC: B01J29/88 ,  B01D53/94

CPC classification number: B01J29/763 ,  B01D53/94 ,  B01D53/9418 ,  B01D2255/20738 ,  B01D2255/50 ,  B01D2258/012 ,  B01J29/70 ,  B01J29/76 ,  B01J29/83 ,  B01J29/85 ,  B01J29/88 ,  B01J37/0246 ,  F01N3/20 ,  F01N3/2066 ,  F01N3/208 ,  F01N2510/063 ,  Y02T10/24

Abstract: Described is a selective catalytic reduction catalyst comprising an iron-promoted 8-ring small pore molecular sieve. Systems and methods for using these iron-promoted 8-ring small molecular sieves as catalysts in a variety of processes such as abating pollutants in exhaust gases and conversion processes are also described.

Abstract translation: 描述了包含铁促进的8-环小孔分子筛的选择性催化还原催化剂。 还描述了在各种过程中使用这些铁促进的8-环小分子筛作为催化剂的系统和方法，例如减少排气中的污染物和转化过程。