公开(公告)号：US12297760B2

公开(公告)日：2025-05-13

申请号：US18694217

申请日：2022-09-26

Applicant: BASF CORPORATION

Inventor： Liang Chen ,  Jiadi Zhang ,  Renjie Qiu ,  Yuchao Zhang ,  Yufen Hao ,  Wenming Shi

IPC: F01N3/28 ,  B01D53/94 ,  B01J23/22 ,  B01J23/42 ,  B01J29/76 ,  B01J35/00 ,  B01J35/57 ,  B01J37/02 ,  B01J37/04 ,  B01J37/08 ,  F01N3/10 ,  F01N3/20

Abstract: A catalyst system for purifying an exhaust gas, comprising one or more antimony-containing regions comprising an antimony-containing catalyst, particularly antimony-containing SCR catalyst, and one or more antimony-trapping regions comprising a molecular sieve which is optionally metal-promoted, wherein at least one of the antimony-trapping regions is located downstream of the one or more antimony-containing regions in a flow direction of the exhaust gas, and also a method for treatment of an exhaust gas containing nitrogen oxides.

公开(公告)号：US11260371B2

公开(公告)日：2022-03-01

申请号：US16062242

申请日：2016-07-26

Applicant: BASF Corporation ,  BASF SE

Inventor： Feng Zhao ,  Jia Di Zhang ,  Liang Chen ,  Diana Carolina Galeano Nunez ,  Sabine Huber ,  Edgar Viktor Huennekes

IPC: B01J23/22 ,  B01D53/94 ,  B01J37/08 ,  B01J37/02 ,  B01D53/86 ,  B01J37/00 ,  B01J37/03 ,  B01J23/00 ,  B01J35/00 ,  B01J37/04 ,  B01J35/02 ,  B01J21/06

Abstract: A catalyst composition comprising—a support comprising TiO2,—a composite oxide containing vanadium and antimony, which has a rutile-type structure different from VSbO4 and V0.92Sb0.92O4 as determined by X-ray diffraction (XRD) analysis with CuKα radiation, and—optionally, one or more selected from the group consisting of oxides of silicon, oxides of vanadium and oxides of antimony, for selective catalytic reduction of nitrogen oxides; to a process for preparing the catalyst composition, to the catalyst composition obtained/obtainable by the process and to use of the same for selective catalytic reduction of nitrogen oxides.

公开(公告)号：US11219859B2

公开(公告)日：2022-01-11

申请号：US16320708

申请日：2016-07-26

Applicant: BASF Corporation

Inventor： Liang Chen ,  Feng Zhao ,  Jia Di Zhang ,  An Ju Shi ,  Shau-Lin Frank Chen ,  Miao Mark Chen

IPC: B01J21/04 ,  B01J21/06 ,  B01J21/08 ,  B01J21/12 ,  B01J23/18 ,  B01J23/22 ,  B01J23/30 ,  B01J35/00 ,  B01J37/08 ,  B01J37/20 ,  B01D53/94

Abstract: The present disclosure relates to a catalyst for NOx removal. In some embodiments, the catalyst comprises a support comprising at least one selected from the group consisting of TiO2, Al2O3, SiO2, ZrO2, CeO2, zeolite, TiO2 and WO3, and combinations thereof, and catalytically active components supported on the support. The catalytically active components comprise vanadium, antimony and at least one further component selected from the group consisting of silicon, aluminum and zirconium.

公开(公告)号：US20240167410A1

公开(公告)日：2024-05-23

申请号：US18549242

申请日：2022-03-09

Applicant: BASF Corporation

Inventor： Jiadi Zhang ,  Yijiang Wu ,  Liang Chen ,  Shuxin Lv ,  Yu Zhang ,  Edgar Viktor Huennekes ,  Kevin Beard ,  Joseph A Patchett ,  Jan Martin Becker ,  Martin Kalwei

IPC: F01N3/28 ,  B01D53/94 ,  B01J23/22 ,  B01J29/76 ,  B01J35/00 ,  B01J35/57 ,  B01J35/61 ,  B01J37/02 ,  B01J37/08 ,  F01N3/035 ,  F01N3/10 ,  F01N3/20

CPC classification number: F01N3/2803 ,  B01D53/9418 ,  B01D53/9472 ,  B01J23/22 ,  B01J29/7615 ,  B01J35/19 ,  B01J35/57 ,  B01J35/617 ,  B01J37/0228 ,  B01J37/0236 ,  B01J37/08 ,  F01N3/035 ,  F01N3/101 ,  F01N3/106 ,  F01N3/2066 ,  B01D2255/20723 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/502 ,  B01D2255/707 ,  B01D2255/9035 ,  B01D2255/9155 ,  B01D2255/9207 ,  B01D2257/404 ,  B01D2258/012 ,  F01N2370/04

Abstract: The present invention relates to a catalytic article for purifying an exhaust gas containing nitrogen oxides, which comprises a first region containing a vanadium-based SCR catalyst, a second region containing a metal-promoted molecular sieve catalyst, and a third region containing a vanadium-based SCR catalyst, wherein at least part of the second region is located downstream of at least part of the first region and upstream of at least part of the third region in the exhaust gas flow direction, provided that no part of the second region is located upstream of the first region or downstream of the third region. The present invention also relates to a method and a system for treatment of an exhaust gas containing nitrogen oxides by selective catalytic reduction using the catalytic article.

公开(公告)号：US11772074B2

公开(公告)日：2023-10-03

申请号：US17309526

申请日：2019-12-12

Applicant: BASF Corporation

Inventor： Feng Zhao ,  Liang Chen ,  Jia Di Zhang ,  Feng Yang

IPC: B01J23/22 ,  B01D53/86 ,  B01D53/94 ,  B01J21/06 ,  B01J23/00 ,  B01J35/04 ,  B01J37/03 ,  B01J37/04 ,  B01J37/08 ,  F01N3/20 ,  F01N3/28

CPC classification number: B01J23/22 ,  B01D53/8628 ,  B01D53/9418 ,  B01J21/063 ,  B01J23/002 ,  B01J35/04 ,  B01J37/038 ,  B01J37/04 ,  B01J37/082 ,  F01N3/2066 ,  F01N3/2828 ,  B01D2255/2098 ,  B01D2255/20723 ,  F01N2330/06 ,  F01N2370/02

Abstract: A method for production of vanadium catalysts, including steps of 1) providing a mixture comprising a TiO2-based support and a composite oxide containing vanadium and antimony; 2) preparing a slurry containing the mixture obtained from step 1), and additive comprising at least one species selected from the group consisting of Si, Al, Zr, Ti, W and Mo, and a solvent; and 3) applying the slurry onto a substrate or processing the slurry into shaped bodies. The vanadium catalysts obtained/obtainable from the method, and use thereof for abatement of nitrogen oxides (NOx).