公开(公告)号：CA2976083A1

公开(公告)日：2016-08-18

申请号：CA2976083

申请日：2016-02-08

Applicant: BASF CORP

Inventor： SUNG SHIANG ,  MCCANTY PATRICK WILLIAM ,  ROTH STANLEY A ,  ZHENG XIAOLAI ,  GERLACH OLGA ,  KOGEL MARKUS

IPC: B01J21/06 ,  B01J21/04 ,  B01J23/34 ,  B01J23/42 ,  B01J23/44 ,  B01J29/00 ,  F01N3/28

Abstract: An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, described is an oxidation catalyst composite including a first oxidation component comprising a first refractory metal oxide support, palladium (Pd) and platinum (Pt); a NOx storage component comprising one or more of alumina, silica, titania, ceria, or manganese; and a second oxidation component comprising a second refractory metal oxide, a zeolite, and Pt. The oxidation catalyst composite is sulfur tolerant, adsorbs NOx and thermally releases the stored NOx at temperature less than 350°C.

公开(公告)号：ZA201705952B

公开(公告)日：2020-11-25

申请号：ZA201705952

申请日：2017-09-01

Applicant: BASF CORP

Inventor： SUNG SHIANG ,  MCCANTY PATRICK WILLIAM ,  ROTH STANLEY A ,  ZHENG XIAOLAI ,  GERLACH OLGA ,  KÖGEL MARCUS

Abstract: An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, described is an oxidation catalyst composite including a first oxidation component comprising a first refractory metal oxide support, palladium (Pd) and platinum (Pt); a NOx storage component comprising one or more of alumina, silica, titania, ceria, or manganese; and a second oxidation component comprising a second refractory metal oxide, a zeolite, and Pt. The oxidation catalyst composite is sulfur tolerant, adsorbs NOx and thermally releases the stored NOx at temperature less than 350° C.

公开(公告)号：CA3027822A1

公开(公告)日：2017-12-21

申请号：CA3027822

申请日：2017-06-13

Applicant: BASF CORP

Inventor： SUNG SHIANG ,  MCCANTY PATRICK WILLIAM ,  KOEGEL MARKUS ,  STIEBELS SUSANNE

IPC: B01J35/00 ,  B01J21/10 ,  B01J23/42 ,  B01J23/44 ,  B01J23/63 ,  B01J37/02 ,  F01N3/20

Abstract: An oxidation catalyst composite for abatement of exhaust gas emissions from a lean burn engine is provided, the catalyst composite including a carrier substrate having a length, an inlet end and an outlet end, and an oxidation catalyst material coated on the carrier substrate. The oxidation catalyst material can include a first layer and a second layer. The first layer can include a first oxygen storage component that includes ceria and is impregnated with a palladium (Pd) component and a second component including one or more of magnesium (Mg), rhodium (Rh), and platinum (Pt). The second layer can include a refractory metal oxide component impregnated with platinum (Pt) and palladium (Pd), wherein the ratio of Pt to Pd is in the range of about 0:10 to about 10:0.