公开(公告)号：EP3157672A4

公开(公告)日：2018-04-04

申请号：EP15809019

申请日：2015-06-17

Applicant: BASF CORP

Inventor： TRUKHAN NATALIA ,  MUELLER ULRICH ,  BREEN MICHAEL ,  SLAWSKI BARBARA ,  FU QI ,  MOHANAN JAYA L ,  KRAUS MARTIN W ,  MOINI AHMAD ,  YANG XIAOFAN ,  HOCHMUTH JOHN K

IPC: B01J29/06 ,  B01J29/064 ,  F01N3/20

CPC classification number: B01J37/0215 ,  B01D53/9418 ,  B01D53/9436 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2255/104 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/20723 ,  B01D2255/2073 ,  B01D2255/20738 ,  B01D2255/20746 ,  B01D2255/20753 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/911 ,  B01J29/763 ,  B01J29/89 ,  B01J35/0006 ,  B01J35/002 ,  B01J35/023 ,  B01J35/04 ,  B01J37/0246 ,  B01J2229/183 ,  B01J2229/186

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 H20 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 H20 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.

公开(公告)号：EP3244998A4

公开(公告)日：2018-07-25

申请号：EP16737956

申请日：2016-01-15

Applicant: BASF CORP

Inventor： GRAMICCIONI GARY A ,  MOHANAN JAYA L ,  HOCHMUTH JOHN K ,  BROWN KENNETH R ,  JONES BRIAN TODD

IPC: B01J35/10 ,  B01D53/94 ,  B01J23/83 ,  B01J29/76 ,  B01J37/00 ,  F01N3/20

CPC classification number: B01J35/023 ,  B01D53/9418 ,  B01D53/944 ,  B01D53/945 ,  B01D2255/102 ,  B01D2255/206 ,  B01D2255/207 ,  B01D2255/20715 ,  B01D2255/2073 ,  B01D2255/20738 ,  B01D2255/20753 ,  B01D2255/20761 ,  B01D2255/402 ,  B01D2255/405 ,  B01D2255/407 ,  B01D2255/50 ,  B01D2255/908 ,  B01D2255/9155 ,  B01D2255/9202 ,  B01D2255/9205 ,  B01D2257/404 ,  B01D2257/502 ,  B01D2257/702 ,  B01D2258/01 ,  B01J23/002 ,  B01J23/005 ,  B01J23/10 ,  B01J23/63 ,  B01J23/83 ,  B01J29/763 ,  B01J35/0013 ,  B01J35/04 ,  B01J35/10 ,  B01J37/0009 ,  B01J37/0246 ,  B01J2229/42 ,  Y02T10/22 ,  Y02T10/24

Abstract: Described are catalytic articles comprising a substrate having a washcoat on the substrate, the washcoat containing a catalytic component having a first average (D50) particle size and a functional binder component having a second average (D50) particle size in the range of about 10 nm to about 1000 nm, wherein the ratio of the first average (D50) particle size to the second average (D50) particle size is greater than about 10:1. The catalytic articles are useful in methods and systems to purify exhaust gas streams from an engine.

公开(公告)号：EP3157671A4

公开(公告)日：2018-02-14

申请号：EP15808974

申请日：2015-06-17

Applicant: BASF CORP

Inventor： YANG XIAOFAN ,  HOCHMUTH JOHN K ,  XUE WEN-MEI ,  WANG XIAOMING ,  CAUDLE MATTHEW TYLER ,  MOINI AHMAD ,  HOLLOBAUGH DUSTIN O ,  FU QI ,  BREEN MICHAEL

IPC: B01J29/89 ,  B01D53/94 ,  B01J29/06 ,  B01J29/16 ,  B01J29/20 ,  B01J37/02

CPC classification number: B01J37/0215 ,  B01D53/9418 ,  B01D53/9436 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2255/104 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/20723 ,  B01D2255/2073 ,  B01D2255/20738 ,  B01D2255/20746 ,  B01D2255/20753 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/911 ,  B01J29/763 ,  B01J29/89 ,  B01J35/002 ,  B01J35/04 ,  B01J37/0246 ,  B01J2229/183 ,  B01J2229/186

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 H20 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 H20 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.