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    FOUR-WAY CONVERSION CATALYST HAVING IMPROVED FILTER PROPERTIES
    4.
    发明申请
    FOUR-WAY CONVERSION CATALYST HAVING IMPROVED FILTER PROPERTIES 审中-公开

    公开(公告)号：US20200368727A1

    公开(公告)日：2020-11-26

    申请号：US16966319

    申请日：2019-02-04

    Applicant: BASF Corporation ,  BASF SE

    Inventor： Thomas SCHMITZ ,  Attilio SIANI ,  Stephan SIEMUND ,  Janosch CRAVILLON

    IPC: B01J23/63 ,  B01J23/58 ,  B01J35/04 ,  B01J35/00 ,  B01J35/10 ,  B01J37/02 ,  B01J37/00 ,  B01D53/94 ,  F01N3/28 ,  F01N3/10

    Abstract: A four-way conversion catalyst for treating a gasoline engine exhaust gas has a porous wall flow filter substrate with an inlet end, outlet end, substrate axial length extending between the inlet and outlet end, and passages defined by porous internal walls of the substrate, the passages having inlet passages with an open inlet and closed outlet, and outlet passages having a closed inlet and open outlet. The internal wall pores have a three-way conversion catalytic in-wall coating with an oxygen storage compound and a platinum group metal supported on a refractory metal oxide. On at least a portion of the internal wall surface defining the interface between the internal walls and the passages, the catalyst has a porous on-wall coating from the internal wall surface to the passage. The coating has porous oxidic compound and platinum group metal content of 0 to 0.001 wt. %, of the total coating weight.

    GASOLINE PARTICULATE FILTER
    6.
    发明申请
    GASOLINE PARTICULATE FILTER 有权

    公开(公告)号：US20250091004A1

    公开(公告)日：2025-03-20

    申请号：US18832413

    申请日：2023-01-28

    Applicant: BASF CORPORATION

    Inventor： Attilio SIANI ,  Chunyu CHEN ,  Yehui WU ,  Chenghao DENG

    IPC: B01D53/94 ,  B01J23/63 ,  B01J35/57 ,  B01J37/02 ,  F01N3/035 ,  F01N3/10 ,  F01N3/28

    Abstract: The present invention relates to a particulate filter, which comprises —a substrate, comprising a plurality of porous walls extending longitudinally to form a plurality of parallel channels extending from an inlet end to an outlet end, wherein a quantity of the channels are inlet channels that are open at the inlet end and closed at the outlet end, and a quantity of channels are outlet channels that are closed at the inlet end and open at the outlet end; and —a layer of inorganic particles loaded on surfaces of the porous walls in the inlet channels and/or outlet channels, preferably in at least the inlet channels, wherein the inorganic particles have a D90 in the range of 5.0 to 14.0 microns.

    FOUR-WAY CONVERSION CATALYST FOR THE TREATMENT OF AN EXHAUST GAS STREAM
    9.
    发明申请
    FOUR-WAY CONVERSION CATALYST FOR THE TREATMENT OF AN EXHAUST GAS STREAM 有权

    公开(公告)号：US20210293168A1

    公开(公告)日：2021-09-23

    申请号：US17250544

    申请日：2019-08-30

    Applicant: BASF Corporation

    Inventor： David SCHLERETH ,  Hao LI ,  Stephen SIEMUND ,  Thomas SCHMITZ ,  Attilio SIANI ,  Florian WALTZ

    IPC: F01N3/035 ,  F01N3/10 ,  F01N3/022 ,  B01J23/63

    Abstract: The present invention relates to a four-way conversion catalyst for the treatment of an exhaust gas stream of a gasoline engine, the catalyst comprising a porous wall-flow filter substrate comprising an inlet end, an outlet end, a substrate axial length extending between the inlet end and the outlet end, and a plurality of passages defined by porous internal walls of the porous wallflow filter substrate, wherein the plurality of passages comprise inlet passages having an open inlet end and a closed outlet end, and outlet passages having a closed inlet end and an open outlet end, wherein the interface between the passages and the porous internal walls is defined by the surface of the internal walls; wherein the porous internal walls comprise pores which comprise an oxidic component comprising a first refractory metal oxide, said first refractory metal oxide comprising aluminum, said oxidic component having a platinum group metal content in the range of from 0 to 0.001 weight-% based on the total weight of the oxidic component; wherein the catalyst further comprises a first three-way conversion catalytic coating, at least weight-% thereof being comprised in the pores of the internal walls, said first three-way conversion catalytic coating comprising an oxygen storage compound and a platinum group metal supported on a second refractory metal oxide.

    A COATING SYSTEM FOR COATING A SUBSTRATE AND A METHOD OF COATING THE SUBSTRATE WITH THE SAME
    10.
    发明申请
    A COATING SYSTEM FOR COATING A SUBSTRATE AND A METHOD OF COATING THE SUBSTRATE WITH THE SAME 有权

    公开(公告)号：US20240375144A1

    公开(公告)日：2024-11-14

    申请号：US18684554

    申请日：2022-08-18

    Applicant: BASF CORPORATION

    Inventor： Yuting LI ,  Yunfei QI ,  Juncong JIANG ,  Chenghao DENG ,  Attilio SIANI ,  Jiancheng LIU ,  Xiaomin YIN

    IPC: B05C11/10 ,  B05C13/02

    Abstract: A coating system for coating a substrate, comprises: a dosing unit for pre-weighing a solid material to be conveyed; a conveying unit for conveying the weighed solid material to the substrate to be coated by a conveying gas flow; a receiving unit for receiving the substrate and located downstream of the conveying unit along a flowing direction of the conveying gas flow; an automatic transfer mechanism for transferring the substrate to the receiving unit and removing the coated substrate out of the receiving unit; a control unit for controlling the operation of the dosing unit, the receiving unit and the automatic transfer mechanism; and a gas flow generating device for generating the conveying gas flow. A method of coating a substrate; with said coating system is also related.

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