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    GAS SEPARATION APPARATUS
    3.
    发明公开
    GAS SEPARATION APPARATUS 审中-公开

    公开(公告)号：EP4324547A1

    公开(公告)日：2024-02-21

    申请号：EP23179773.9

    申请日：2023-06-16

    申请人： Hitachi, Ltd.

    发明人： ISHIDA, Naoyuki ,  MIZUKAMI, Takaaki ,  FUJITA, Shinji ,  KANI, Yuko ,  WATANABE, Ayumi ,  IIZUKA, Hidehiro ,  YASHIKI, Tatsurou ,  SASAKI, Takashi ,  INAGAKI, Ryohei

    IPC分类号： B01D53/22

    摘要： A gas separation apparatus includes: a gas separation membrane module including a gas separation membrane that selectively allows a specific gas to permeate the membrane, the gas separation membrane module being separated into a primary side and a secondary side by the gas separation membrane, the gas separation membrane module including a mixed gas pipe that supplies a mixed gas containing a specific gas to the primary side, a non-permeation gas pipe connected to the primary side, and a permeation gas pipe connected to the secondary side; and a branch pipe connecting the mixed gas pipe and the secondary side or a non-permeation gas return pipe connecting the non-permeation gas pipe and the secondary side.

    EMISSION GAS PURIFICATION CATALYST AND INTERNAL COMBUSTION ENGINE PROVIDED WITH THE CATALYST
    4.
    发明公开
    EMISSION GAS PURIFICATION CATALYST AND INTERNAL COMBUSTION ENGINE PROVIDED WITH THE CATALYST 审中-公开
    ABGASREINIGUNGSKATALYSATOR UND MIT DEM KATALYSATORAUSGERÜSTETEBRENNKRAFTMASCHINE

    公开(公告)号：EP1358933A1

    公开(公告)日：2003-11-05

    申请号：EP01273673.2

    申请日：2001-02-02

    申请人： Hitachi, Ltd.

    发明人： IIZUKA, Hidehiro ,  OKUDE, Kojiro ,  KANEEDA, Masato ,  YAMASHITA, Hisao ,  KITAHARA, Yuichi ,  KURODA, Osamu

    IPC分类号： B01J23/58 ,  B01D53/94

    CPC分类号： B01J37/0242 ,  B01D53/8628 ,  B01D53/94 ,  B01D2255/2047 ,  B01D2257/404 ,  B01J23/58 ,  B01J23/63 ,  B01J23/6562 ,  B01J35/023

    摘要： A catalyst for use in purifying exhaust gas from an internal combustion engine. The active components of an exhaust gas purification catalyst for an internal combustion engine tend to be melted or softened and then to move outside the carrier, because the components become in contact with exhaust gas at a high temperature. Hence, anchoring materials are provided between carriers in order to suppress the moving of catalytically active components. Anchoring materials 22 do not form compounds with catalytically active components 24, and are selected from substances that do not melt even in contact with exhaust gas at a high temperature. When the active components contain sodium, potassium, cesium, lithium, strontium, barium, noble metals and the like, the best anchoring material is MgO. The anchoring material functions as a barrier that prevents the moving of active components.

    摘要翻译： 一种用于净化内燃机废气的催化剂。 用于内燃机的废气净化催化剂的活性组分倾向于被熔化或软化，然后由于组分在高温下与废气接触而倾向于移动到载体外。 因此，在载体之间提供锚固材料以抑制催化活性组分的移动。 锚固材料22不形成具有催化活性组分24的化合物，并且选自在高温下甚至不与废气接触的物质。 当活性组分含有钠，钾，铯，锂，锶，钡，贵金属等时，最好的锚固材料是MgO。 锚固材料用作防止活性组分移动的屏障。

    GAS SEPARATION SYSTEM
    7.
    发明公开
    GAS SEPARATION SYSTEM 审中-实审

    公开(公告)号：EP4368276A1

    公开(公告)日：2024-05-15

    申请号：EP23199904.6

    申请日：2023-09-26

    申请人： Hitachi, Ltd.

    发明人： ISHIDA, Naoyuki ,  IIZUKA, Hidehiro ,  YASHIKI, Tatsurou ,  WATANABE, Ayumi ,  FUJITA, Shinji ,  MIZUKAMI, Takaaki ,  KAWAHARA, Yohei ,  INAGAKI, Ryohei ,  SASAKI, Takashi

    IPC分类号： B01D53/22

    CPC分类号： B01D53/226 ,  B01D2317/02220130101 ,  B01D2311/1320130101 ,  B01D2256/1620130101

    摘要： A gas separation system including: a first separation membrane module including a first gas separation membrane that selectively permeates a specific gas, and having a configuration separated by the first gas separation membrane into a primary side and a secondary side; a second separation membrane module including a second gas separation membrane that selectively permeates the specific gas, and having a configuration separated by the second gas separation membrane into a primary side and a secondary side; a first supply pipe that supplies a mixed gas containing the specific gas to the primary side of the first separation membrane module; a second supply pipe connecting the primary side of the first separation membrane module and the primary side of the second separation membrane module; a first permeable gas pipe connected to the secondary side of the first separation membrane module; a second non-permeable gas pipe connected to the primary side of the second separation membrane module; a second permeable gas pipe that is provided between the secondary side of the second separation membrane module and the first supply pipe, and supplies a gas that has permeated the second gas separation membrane to the first supply pipe; and a second branch pipe connecting the second supply pipe or the second non-permeable gas pipe and the secondary side of the second separation membrane module is used.