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    Method for reusing vehicular catalyst
    2.
    发明授权
    Method for reusing vehicular catalyst 有权

    公开(公告)号：US11286839B2

    公开(公告)日：2022-03-29

    申请号：US17189852

    申请日：2021-03-02

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Tsuyoshi Okada ,  Masaru Kakinohana ,  Fukutaroh Mori ,  Shogo Shirakawa ,  Yuriko Takahashi ,  Masashi Nose

    IPC分类号： F01N11/00

    摘要： A method for reusing a vehicular catalyst that ensures effective reuse of a catalyst discarded when a vehicle is discarded is provided. A catalyst deterioration level of a catalytic converter is diagnosed, a catalyst that has a value of the deterioration level diagnosed to be smaller than a predetermined value is determined as a reusable catalyst, and the catalytic converter that includes the catalyst determined as the reusable catalyst is removed from a discarded vehicle. The removed catalytic converter is stored in association with a vehicle type and a manufacturing time of the discarded vehicle. When an abnormality occurs in a catalyst of a drivable vehicle corresponding to the vehicle type and the manufacturing time, a catalytic converter that includes the abnormal catalyst is replaced with the stored catalytic converter.

    Method for producing exhaust gas purifying catalyst and exhaust gas purifying catalyst
    3.
    发明授权
    Method for producing exhaust gas purifying catalyst and exhaust gas purifying catalyst 有权

    公开(公告)号：US10967366B2

    公开(公告)日：2021-04-06

    申请号：US16223699

    申请日：2018-12-18

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Shogo Shirakawa ,  Masahide Miura

    IPC分类号： B01J37/00 ,  B01J23/44 ,  B01J23/46 ,  B01J37/04 ,  B01J35/00 ,  B01D53/94

    摘要： The present disclosure provides a method for producing an exhaust gas purifying catalyst, in which fine Rh—Pd particles exhibiting high catalytic activity are produced such that a variation in the Pd composition can be reduced. The present disclosure relates to a method for producing an exhaust gas purifying catalyst having fine composite metal particles containing Rh and Pd, comprising: preparing a starting material solution containing Rh and Pd, in which the atomic percentage of Pd to the total of Rh and Pd is 1 atomic % to 15 atomic %; and allowing the prepared starting material solution to react with a neutralizer by a super agitation reactor having a rotation number of 500 rpm or more, to generate fine composite metal particles.

    Reuse evaluation system for catalyst
    4.
    发明授权
    Reuse evaluation system for catalyst 有权

    公开(公告)号：US11384674B2

    公开(公告)日：2022-07-12

    申请号：US17206279

    申请日：2021-03-19

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Tsuyoshi Okada ,  Masaru Kakinohana ,  Fukutaroh Mori ,  Shogo Shirakawa ,  Yuriko Takahashi ,  Masashi Nose

    IPC分类号： F01N11/00

    摘要： A reuse evaluation system is a system that performs an evaluation to reuse a catalyst in a state where the catalyst that purifies an exhaust gas of an engine of a vehicle 1 is mounted on the vehicle. The reuse evaluation system includes a deterioration estimator that estimates a degree of deterioration of the catalyst based on an operating state of the vehicle, a reuse setting unit that sets a range of the degree of deterioration of the catalyst as a reuse range of the catalyst according to a usage of reuse of the catalyst, and a reuse determining unit that determines that the catalyst is reusable in the reuse usages when the degree of deterioration of the catalyst estimated by the deterioration estimator is within the reuse range set by the reuse setting unit.