公开(公告)号：EP3229956A4

公开(公告)日：2018-06-27

申请号：EP15855461

申请日：2015-10-30

Applicant: BASF CORP

Inventor： MOHANAN JAYA L ,  YANG JEFF ,  BURK PATRICK ,  VOSS KENNETH E

IPC: B01J29/072 ,  B01D53/56 ,  B01D53/94 ,  B01J29/70

CPC classification number: B01J29/763 ,  B01D53/8628 ,  B01D53/9418 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/9022 ,  B01D2255/9032 ,  B01D2255/9202 ,  B01D2257/404 ,  B01J29/80 ,  B01J35/0006 ,  B01J35/002 ,  B01J37/0244 ,  B01J37/0246 ,  B01J2229/186 ,  C01B39/48

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：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：EP2555866A4

公开(公告)日：2014-12-10

申请号：EP11765157

申请日：2011-04-08

Applicant: BASF SE ,  BASF CORP

Inventor： STIEBELS SUSANNE ,  WENDT CLAUDIA ,  NEUBAUER TORSTEN ,  DIETERLE MARTIN ,  MOHANAN JAYA L

IPC: B01J29/80 ,  B01J37/02

CPC classification number: B01J29/80 ,  B01D53/9418 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01J29/46 ,  B01J29/723 ,  B01J35/04 ,  B01J37/0246

Abstract: A catalyst is provided, preferably for the use in selective catalytic reduction (SCR). Said catalyst comprises one or more zeolites of the MFI structure type, and one or more zeolites of the CHA structure type, wherein at least part of the one or more zeolites of the MFI structure type contains iron (Fe), and wherein at least part of the one or more zeolites of the CHA structure type contains copper (Cu). Furthermore, provided are an exhaust gas treatment system comprising said catalyst as well as a process for the treatment of a gas stream comprising NOX using said catalyst as well.

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.