公开(公告)号：EP3400103A1

公开(公告)日：2018-11-14

申请号：EP17735900.7

申请日：2017-01-05

Applicant: BASF Corporation

Inventor： WEI, Xinyi ,  XU, Xiaoming ,  ROTH, Stanley

IPC: B01J35/02 ,  B01J23/42 ,  B01J23/40 ,  B01J37/02 ,  B01J37/08 ,  B01J21/12 ,  B01J21/08 ,  B01D53/86

CPC classification number: B01D53/86 ,  B01D53/944 ,  B01D2255/102 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/1028 ,  B01D2255/104 ,  B01D2255/106 ,  B01D2255/9202 ,  B01D2255/9205 ,  B01D2258/012 ,  B01J23/42 ,  B01J35/0013 ,  B01J35/006 ,  B01J35/04 ,  B01J37/0211 ,  B01J37/0215 ,  B01J37/08 ,  B01J37/10 ,  B01J37/16 ,  B01J2523/00 ,  B01J2523/41 ,  B01J2523/47 ,  B01J2523/828

Abstract: The present invention relates to diesel oxidation catalyst compositions and catalyst articles, wherein the compositions and articles include a plurality of platinum group nanoparticles substantially in fully reduced form, wherein the nanoparticles have an average particle size of about 1 to about 10 nm and at least about 90% of the nanoparticles have a particle size of +/- about 2 nm of the average particle size. Such compositions can further include a refractory metal oxide material, wherein the nanoparticles and refractory metal oxide material can be combined within the same coating on a substrate or can be applied sequentially on a substrate. The nanoparticles can advantageously be substantially free of halides, alkali metals, alkaline earth metals, sulfur compounds, and boron compounds. Methods of preparing and using such compositions and catalyst articles (e.g., for the treatment of diesel exhaust gas streams) are also provided herein.

公开(公告)号：EP2643082A2

公开(公告)日：2013-10-02

申请号：EP11843705.2

申请日：2011-11-22

Applicant: BASF Corporation

Inventor： WEI, Xinyi ,  ROTH, Stanley

IPC: B01J23/44 ,  B01J29/04 ,  C10G45/10 ,  C01B3/26 ,  B01J19/24

CPC classification number: B01J19/2485 ,  B01D53/944 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/2061 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/407 ,  B01D2255/502 ,  B01D2255/9022 ,  B01D2255/908 ,  B01D2258/012 ,  B01J23/63 ,  B01J29/7415 ,  B01J35/0006 ,  B01J37/0244 ,  B01J37/0246 ,  B01J37/0248 ,  B01J2219/2424 ,  B01J2219/2428 ,  B01J2219/2438 ,  F01N3/035 ,  F01N3/0821 ,  F01N3/0835 ,  F01N3/103 ,  F01N2510/0684 ,  Y02A50/2341

Abstract: Diesel oxidation catalysts, catalytic articles, methods of making catalytic articles, emissions treatment systems and methods of treating an exhaust gas stream using the catalytic articles for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC) and carbon monoxide (CO) are described. Specific catalytic articles comprising a substrate with a first washcoat layer comprising greater than or equal to about 2% by weight palladium dispersed on a ceria support and a second washcoat layer comprising a platinum group metal and a refractory metal oxide are described.

公开(公告)号：EP3600655A1

公开(公告)日：2020-02-05

申请号：EP18770162.8

申请日：2018-03-20

Applicant: BASF Corporation

Inventor： XUE, Wen-Mei ,  YANG, Xiaofan ,  ZHU, Haiyang ,  ROTH, Stanley ,  YANG, Jeff ,  PRASAD, Subramanian ,  MOINI, Ahmad

IPC: B01J29/76 ,  B01J37/10 ,  B01J29/82 ,  B01J29/86 ,  B01J29/74 ,  B01J37/02 ,  F01N3/20 ,  B01J35/04

公开(公告)号：EP3493905A1

公开(公告)日：2019-06-12

申请号：EP17836513.6

申请日：2017-08-04

Applicant: BASF Corporation

Inventor： XUE, Wen-Mei ,  YANG, Jeff ,  ROTH, Stanley ,  VOSS, Kenneth E. ,  SHAH, Sandip ,  MOHANAN, Jaya L.

IPC: B01J37/02 ,  B01J29/072 ,  F01N3/20 ,  B01J29/76 ,  B01J35/04