Catalyst with magnetic ferrite support material

    公开(公告)号:US12163455B2

    公开(公告)日:2024-12-10

    申请号:US18032839

    申请日:2021-10-22

    Abstract: The present disclosure provides a catalyst composition comprising a catalytically active platinum group metal (PGM) component disposed on or impregnated in a magnetic ferrite support material, wherein the magnetic ferrite support material is capable of inductive heating in response to an applied alternating electromagnetic field. Further provided are catalyst articles comprising such compositions, and components comprising such catalyst articles, and further comprising a conductor associated with the catalyst article for receiving current and generating an alternating electromagnetic field in response thereto, wherein the conductor is positioned such that the generated alternating electromagnetic field is applied to at least a portion of the catalyst composition, inductively heating the catalyst composition directly at the catalytic site. Also provided are exhaust gas treatment systems including such components and/or articles, and methods of treating emissions utilizing such components and systems.

    EXHAUST GAS PURIFICATION CATALYST

    公开(公告)号:US20240382942A1

    公开(公告)日:2024-11-21

    申请号:US18691275

    申请日:2022-09-05

    Abstract: An object of the present invention is to provide an exhaust gas purification catalyst including a wall-flow type substrate and a catalyst portion, the exhaust gas purification catalyst being capable of achieving an improvement of PM collecting performance and suppression of an increase in pressure loss, and the present invention provides an exhaust gas purification catalyst (1) including a substrate (10) extending in an exhaust gas flow direction (E), and at least one of a first catalyst portion (20) and a second catalyst portion (30) each provided on the substrate (10), wherein the first catalyst portion (20) satisfies the following expressions (11) and (12): 0 . 2 ⁢ 0 ≤ R 11 ≤ 0.8 ( 11 ) 0.3 ≤ R 12 ≤ 0.85 , ( 12 ) and wherein the second catalyst portion (30) satisfies the following expressions (21) and (22): 0 . 2 ⁢ 0 ≤ R 2 ⁢ 1 ≤ 0 .80 ( 21 ) 0.3 ≤ R 2 ⁢ 2 ≤ 0 ⁢ .85 . ( 22 )

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