公开(公告)号：US10124292B2

公开(公告)日：2018-11-13

申请号：US15590535

申请日：2017-05-09

Applicant: BASF Corporation

Inventor： Chung-Zong Wan ,  Xiaolai Zheng ,  Susanne Stiebels ,  Claudia Zabel ,  Torsten Neubauer ,  R. Samuel Boorse

IPC: F01N3/10 ,  B01D53/94 ,  F01N3/035 ,  F01N3/08 ,  F01N3/20 ,  F01N13/02 ,  B01D53/58 ,  B01D53/92 ,  F01N3/02 ,  F01N3/021

Abstract: Provided are emissions treatment systems for an exhaust stream having an ammonia-generating component, such as a NOx storage reduction (NSR) catalyst or a lean NOx trap (LNT) catalyst, and an SCR catalyst disposed downstream of the ammonia-generating catalyst. The SCR catalyst can be a molecular sieve having the CHA crystal structure, for example SSZ-13 or SAPO-34, which can be ion-exchanged with copper. The LNT can be layered, having an undercoat washcoat layer comprising a support material, at least one precious metal, and at least one NOx sorbent selected from the group consisting of alkaline earth elements, rare earth elements, and combinations thereof and a top washcoat layer comprising a support material, at least one precious metal, and ceria in particulate form, the top washcoat layer being substantially free of alkaline earth components. The emissions treatment system is advantageously used for the treatment of exhaust streams from diesel engines and lean burn gasoline engines.

公开(公告)号：US20170241313A1

公开(公告)日：2017-08-24

申请号：US15590535

申请日：2017-05-09

Applicant: BASF Corporation

Inventor： Chung-Zong Wan ,  Xiaolai Zheng ,  Susanne Stiebels ,  Claudia Zabel ,  Torsten Neubauer ,  R. Samuel Boorse

IPC: F01N3/035 ,  B01D53/94 ,  B01D53/58 ,  F01N3/10

CPC classification number: B01D53/9431 ,  B01D53/58 ,  B01D53/92 ,  B01D53/9418 ,  B01D53/9422 ,  B01D53/9472 ,  B01D53/9477 ,  B01D2251/2062 ,  B01D2255/102 ,  B01D2255/2042 ,  B01D2255/2045 ,  B01D2255/206 ,  B01D2255/2063 ,  B01D2255/2066 ,  B01D2255/2068 ,  B01D2255/20753 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/9022 ,  B01D2255/91 ,  B01D2255/9155 ,  B01D2255/9205 ,  B01D2258/012 ,  F01N3/02 ,  F01N3/021 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/10 ,  F01N3/103 ,  F01N3/206 ,  F01N3/2066 ,  F01N3/2073 ,  F01N13/02 ,  F01N2510/063 ,  F01N2510/0682 ,  Y02T10/24

Abstract: Provided are emissions treatment systems for an exhaust stream having an ammonia-generating component, such as a NOx storage reduction (NSR) catalyst or a lean NOx trap (LNT) catalyst, and an SCR catalyst disposed downstream of the ammonia-generating catalyst. The SCR catalyst can be a molecular sieve having the CHA crystal structure, for example SSZ-13 or SAPO-34, which can be ion-exchanged with copper. The LNT can be layered, having an undercoat washcoat layer comprising a support material, at least one precious metal, and at least one NOx sorbent selected from the group consisting of alkaline earth elements, rare earth elements, and combinations thereof and a top washcoat layer comprising a support material, at least one precious metal, and ceria in particulate form, the top washcoat layer being substantially free of alkaline earth components. The emissions treatment system is advantageously used for the treatment of exhaust streams from diesel engines and lean burn gasoline engines.

公开(公告)号：US20150298098A1

公开(公告)日：2015-10-22

申请号：US14681552

申请日：2015-04-08

Applicant: BASF Corporation

Inventor： Gary A. Gramiccioni ,  Andreas Richard Munding ,  Kenneth E. Voss ,  Torsten Neubauer ,  Stanley A. Roth

IPC: B01J23/46 ,  B05D1/18 ,  B01J35/02 ,  B01D53/94 ,  B01J23/44 ,  B01J23/42

CPC classification number: B01J23/464 ,  B01D53/9418 ,  B01D53/944 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/9022 ,  B01D2255/9032 ,  B01D2255/908 ,  B01D2255/9202 ,  B01J23/42 ,  B01J23/44 ,  B01J29/7415 ,  B01J35/0006 ,  B01J35/002 ,  B01J35/04 ,  B01J37/0219 ,  B01J37/0244 ,  B01J37/0246 ,  B01J2229/37 ,  B05D1/18 ,  B05D3/0493 ,  B05D7/22 ,  Y02T10/22

Abstract: Provided herein are zoned catalysts that utilize components efficiently in that relatively short zones are provided to achieve specific functionalities to convert and/or trap one or more components in the exhaust stream. Highly controlled zoned are formed from one end of a monolithic carrier. The zones have a flat profile such that the zoned catalytic material within each passage of the substrate is at a substantially uniform distance from one end of the carrier. Methods of making and using the same are also provided.

Abstract translation: 本文提供了分区催化剂，其有效地利用组分，因为提供相对短的区域以实现转化和/或捕集排气流中的一种或多种组分的特定功能。 高度受控的分区由单片载体的一端形成。 这些区域具有平坦的轮廓，使得在基底的每个通道内的分区的催化材料距离载体的一端基本上均匀的距离。 还提供了制备和使用它们的方法。

公开(公告)号：US20140044627A1

公开(公告)日：2014-02-13

申请号：US14058559

申请日：2013-10-21

Applicant: BASF Corporation

Inventor： Attilio Siani ,  Torsten W. Müller-Stach ,  Torsten Neubauer ,  Xinyi Wei

IPC: B01J23/44 ,  B01D53/94 ,  B01J23/42

CPC classification number: B01J23/44 ,  B01D53/94 ,  B01D53/944 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/104 ,  B01D2255/106 ,  B01J21/04 ,  B01J23/38 ,  B01J23/42 ,  B01J23/48 ,  B01J35/0013 ,  B01J35/002 ,  B01J35/006 ,  B01J37/0203 ,  B01J37/04 ,  B01J37/16

Abstract: The present invention relates to a process for preparing a catalyst, at least comprising the steps of adding a protecting agent to an aqueous solution of a metal precursor to give a mixture (M1), adding a reducing agent to mixture (M1) to give a mixture (M2), adding a support material to mixture (M2) to give a mixture (M3), adjusting the pH of mixture (M3), and separating the solid and liquid phase of mixture (M3). Furthermore, the present invention relates to the catalyst as such and its use as diesel oxidation catalyst.

Abstract translation: 本发明涉及一种制备催化剂的方法，至少包括以下步骤：向金属前体的水溶液中加入保护剂，得到混合物（M1），向混合物（M1）中加入还原剂，得到 混合物（M2），向混合物（M2）中加入载体材料以得到混合物（M3），调节混合物（M3）的pH值，并分离混合物（M3）的固相和液相。 此外，本发明涉及催化剂及其作为柴油氧化催化剂的用途。