公开(公告)号：US10654031B2

公开(公告)日：2020-05-19

申请号：US15806167

申请日：2017-11-07

Applicant: BASF CORPORATION

Inventor： Ivor Bull ,  Wen-Mei Xue ,  Patrick Burk ,  R. Samuel Boorse ,  William M. Jaglowski ,  Gerald Stephen Koermer ,  Ahmad Moini ,  Joseph A. Patchett ,  Joseph C. Dettling ,  Matthew Tyler Caudle

IPC: B01J29/06 ,  B01J29/72 ,  B01J29/068 ,  B01D53/56 ,  B01D53/94 ,  B01J23/42 ,  B01J23/89 ,  B01J29/072 ,  B01J29/76 ,  B01J35/00 ,  B01J35/04 ,  B01J37/02 ,  B01J29/74 ,  B01D53/86 ,  B01J29/80 ,  C01B39/46

Abstract: Zeolite catalysts and systems and methods for preparing and using zeolite catalysts having the CHA crystal structure are disclosed. The catalysts can be used to remove nitrogen oxides from a gaseous medium across a broad temperature range and exhibit hydrothermal stable at high reaction temperatures. The zeolite catalysts include a zeolite carrier having a silica to alumina ratio from about 15:1 to about 256:1 and a copper to alumina ratio from about 0.25:1 to about 1:1.

公开(公告)号：US20190015783A1

公开(公告)日：2019-01-17

申请号：US16129053

申请日：2018-09-12

Applicant: BASF Corporation

Inventor： Ivor Bull ,  Gerald Stephen Koermer ,  Ahmad Moini ,  Signe Unverricht

IPC: B01D53/94 ,  F01N3/20 ,  B01J37/02 ,  B01J35/04 ,  B01J29/85

Abstract: Catalysts comprising metal-loaded non-zeolitic molecular sieves having the CHA crystal structure, including Cu-SAPO-34, and methods for treating exhaust gas incorporating such catalysts are disclosed. The catalysts can be used to remove nitrogen oxides from a gaseous medium across a broad temperature range and exhibit hydrothermal stability at high reaction temperatures.

公开(公告)号：US09656254B2

公开(公告)日：2017-05-23

申请号：US14973353

申请日：2015-12-17

Applicant: BASF CORPORATION

Inventor： Ivor Bull ,  Wen-Mei Xue ,  Patrick Burk ,  R. Samuel Boorse ,  William M. Jaglowski ,  Gerald Stephen Koermer ,  Ahmad Moini ,  Joseph A. Patchett ,  Joseph C. Dettling ,  Matthew Tyler Caudle

IPC: B01J29/06 ,  B01J29/72 ,  B01J29/068 ,  B01D53/94 ,  B01J23/42 ,  B01J23/89 ,  B01J29/072 ,  B01J29/76 ,  B01J35/00 ,  B01J35/04 ,  B01J37/02 ,  B01J29/74 ,  B01D53/86 ,  B01J29/80 ,  C01B39/46

CPC classification number: B01J29/723 ,  B01D53/56 ,  B01D53/8628 ,  B01D53/9413 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/9477 ,  B01D2251/206 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2255/20715 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/9032 ,  B01D2255/904 ,  B01D2255/9155 ,  B01D2257/40 ,  B01D2257/404 ,  B01D2258/012 ,  B01J23/42 ,  B01J23/8926 ,  B01J29/061 ,  B01J29/068 ,  B01J29/072 ,  B01J29/743 ,  B01J29/76 ,  B01J29/763 ,  B01J29/80 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0246 ,  B01J2029/062 ,  C01B39/46 ,  Y02T10/24 ,  Y10T428/24149

Abstract: Zeolite catalysts and systems and methods for preparing and using zeolite catalysts having the CHA crystal structure are disclosed. The catalysts can be used to remove nitrogen oxides from a gaseous medium across a broad temperature range and exhibit hydrothermal stable at high reaction temperatures. The zeolite catalysts include a zeolite carrier having a silica to alumina ratio from about 15:1 to about 256:1 and a copper to alumina ratio from about 0.25:1 to about 1:1.

公开(公告)号：US20150367337A1

公开(公告)日：2015-12-24

申请号：US14741756

申请日：2015-06-17

Applicant: BASF Corporation

Inventor： Xiaofan Yang ,  John K. Hochmuth ,  Wen-Mei Xue ,  Xiaoming Wang ,  Matthew Tyler Caudle ,  Ahmad Moini ,  Dustin O. Hollobaugh ,  Qi Fu ,  Michael Breen

IPC: B01J29/76 ,  B01D53/94 ,  B01J35/04 ,  B01J29/72

Abstract: Described is a selective catalytic reduction catalyst comprising a zeolitic framework material of silicon and aluminum atoms, wherein a fraction of the silicon atoms are isomorphously substituted with a tetravalent metal. The catalyst can include a promoter metal such that the catalyst effectively promotes the reaction of ammonia with nitrogen oxides to form nitrogen and H2O selectively over a temperature range of 150 to 650° C. In another aspect, described is a selective catalytic reduction composite comprising an SCR catalyst material and an ammonia storage material comprising a transition metal having an oxidation state of IV. The SCR catalyst material promotes the reaction of ammonia with nitrogen oxides to form nitrogen and H2O selectively over a temperature range of 150° C. to 600° C., and the SCR catalyst material is effective to store ammonia at temperatures of 400° C. and above. A method for selectively reducing nitrogen oxides, and a method for simultaneously selectively reducing nitrogen oxide and storing ammonia are also described. Additionally, an exhaust gas treatment system is also described.

Abstract translation: 描述了包含硅和铝原子的沸石骨架材料的选择性催化还原催化剂，其中一部分硅原子被四价金属同晶取代。 催化剂可以包括促进剂金属，使得催化剂有效地促进氨与氮氧化物的反应，以在150至650℃的温度范围内选择性地形成氮和H 2。另一方面，描述了选择性催化还原复合材料，其包含 SCR催化剂材料和包含具有IV氧化态的过渡金属的氨储存材料。 SCR催化剂材料促进氨与氮氧化物的反应，在150℃至600℃的温度范围内选择性地形成氮和H2O，SCR催化剂材料在400℃的温度下有效储存氨。 以上。 还描述了选择性还原氮氧化物的方法，以及同时选择性地还原氮氧化物和储存氨的方法。 此外，还描述了废气处理系统。