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170 条记录 (耗时 0.028 秒)

    FILTER FOR EXHAUST GAS CLEANING AND METHOD FOR MANUFACTURING SAME
    31.
    发明公开
    FILTER FOR EXHAUST GAS CLEANING AND METHOD FOR MANUFACTURING SAME 审中-公开

    公开(公告)号：EP3590598A1

    公开(公告)日：2020-01-08

    申请号：EP18760423.6

    申请日：2018-02-02

    申请人： N.E. Chemcat Corporation

    发明人： KAYADA, Yuto ,  ANDO, Ryuji

    IPC分类号： B01J35/04 ,  B01D53/94 ,  B01J23/63 ,  B01J37/02 ,  B01J37/04 ,  B01J37/08 ,  F01N3/035

    摘要： The present invention provides an exhaust gas purifying filter capable of efficiently burning and removing particulates captured by a partition wall, and a production method thereof. This exhaust gas purifying filter (CSF) of the present invention includes at least a honeycomb substrate having a porous partition wall configured to capture particulates (PM) such as soot in exhaust gas, and a catalyst carried by the honeycomb substrate and configured to burn and remove the particulates captured by the partition wall of the honeycomb substrate and deposited within cells, wherein the catalyst is carried concentrically in a shallow portion from the surface of the cell wall on the exhaust gas inflow side of the honeycomb substrate, and 65% or more of the total mass of the catalyst is present in a depth region from the surface of the cell wall of the honeycomb substrate up to 2/10a with reference to the wall thickness a of the partition wall.

    HONEYCOMB STRUCTURE BODY, HONEYCOMB STRUCTURE TYPE CATALYST, AND MANUFACTURING METHODS THEREFOR
    33.
    发明公开
    HONEYCOMB STRUCTURE BODY, HONEYCOMB STRUCTURE TYPE CATALYST, AND MANUFACTURING METHODS THEREFOR 审中-公开

    公开(公告)号：EP3505244A1

    公开(公告)日：2019-07-03

    申请号：EP17843126.8

    申请日：2017-05-15

    申请人： N.E. Chemcat Corporation

    发明人： YAMADA, Takashi ,  ISHIKAWA, Shingo ,  TAKAHASHI, Yoshinori ,  SEKIYAMA, Kazuhiro

    IPC分类号： B01J35/04 ,  B01D53/94 ,  B01J23/63 ,  B01J35/10 ,  B01J37/02 ,  B01J37/08 ,  F01N3/035 ,  F01N3/28

    摘要： Provided are a honeycomb structure capable of preventing catalyst slurry from leaching out to an outer portion thereof when applying a wash coat for making a catalyst supported, a honeycomb structure type catalyst which is capable of ensuring air permeability of the outer portion and in which there is no occurrence of cracking when used as a gasoline particulate filter (GPF), and production methods therefor.
    A honeycomb structure for producing a catalyst, the honeycomb structure having: a honeycomb substrate composed of porous partition walls forming a plurality of cells and a porous outer portion; and a resin composition on the outer portion of the honeycomb substrate, wherein the outer portion and the partition walls of the honeycomb substrate are formed of the same material; a porosity of the honeycomb structure is 50% or more; and the resin composition is impregnated into pores of the whole outer portion; and the impregnation depth is equal to the outer portion thickness or a part of the resin composition is impregnated deeper than the outer portion and reaches the cell partition walls.

    CATALYST FOR LEAN BURN
    35.
    发明公开
    CATALYST FOR LEAN BURN 审中-公开

    公开(公告)号：EP3476480A1

    公开(公告)日：2019-05-01

    申请号：EP17815483.7

    申请日：2017-06-22

    申请人： N.E. Chemcat Corporation

    发明人： ANDO, Ryuji ,  KAYADA, Yuto

    IPC分类号： B01J29/74 ,  B01D53/94 ,  F01N3/10

    摘要： The present invention relates to catalysts for lean burn and provides a catalyst for lean burn that is capable of purifying NO x sufficiently and that has a high ability to purify CO and HC over a wide temperature range from low to high temperatures. The present invention provides a catalyst for a lean-burn engine to purify exhaust gas, the catalyst including: an integrally structured support; and a catalyst layer containing a precious metal element, provided on the integrally structured support and having at least two layers that include an upper layer and a lower layer; wherein the upper layer of the catalyst layer contains at least a proton-substituted β-type zeolite and a ceria-based oxide supporting rhodium, and the lower layer of the catalyst layer contains at least a NO x storage component and platinum supported on an inorganic oxide.

    GASOLINE ENGINE EXHAUST GAS PURIFICATION THREE-WAY CATALYST
    36.
    发明公开
    GASOLINE ENGINE EXHAUST GAS PURIFICATION THREE-WAY CATALYST 审中-公开

    公开(公告)号：EP3466535A1

    公开(公告)日：2019-04-10

    申请号：EP17802463.4

    申请日：2017-04-11

    申请人： N.E. Chemcat Corporation

    发明人： KATOH, Takuya ,  TAKAYAMA, Akito

    IPC分类号： B01J23/63 ,  B01D53/94 ,  B01J35/04 ,  F01N3/10 ,  F01N3/28

    摘要： The present invention relates to a catalyst for purifying exhaust gas that is a relatively inexpensive three-way catalyst including noble metal components, enables sintering of the noble metal to be suppressed even at high temperature, enables carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx) to be removed, and is particularly excellent in removal of nitrogen oxides, and to a method for purifying exhaust gas. This catalyst for purifying exhaust gas is a three-way catalyst including catalyst compositions to remove carbon monoxide, hydrocarbons, and nitrogen oxides included in gasoline engine exhaust gas. A carrier having a honeycomb structure is coated with two or more layers of the catalyst compositions, an upper layer including a heat resistant inorganic oxide supporting Pd and a La-containing oxide, a lower layer including a heat resistant inorganic oxide supporting Rh. The content of La in terms of La 2 O 3 is 9.6 g/L to 23 g/L, the content of Ce in terms of CeO 2 is 5 g/L to 20 g/L, and the content of Ba in terms of BaO is 1.2 g/L or less per unit volume of the honeycomb structure.

    REACTION COMPOSITION AND REACTION SYSTEM USING THIS
    37.
    发明公开
    REACTION COMPOSITION AND REACTION SYSTEM USING THIS 审中-公开

    公开(公告)号：EP3434366A1

    公开(公告)日：2019-01-30

    申请号：EP17769727.3

    申请日：2017-02-15

    申请人： N.E. Chemcat Corporation

    发明人： SUZUKA, Hiroyasu ,  MIZUSAKI, Tomoteru ,  NAKAYA, Yusuke ,  WADA, Yoshiyuki ,  TAKAGI, Yukio

    IPC分类号： B01J23/89 ,  C07D213/73

    摘要： An aromatic nitro compound has a structure in which a nitro group and a halogen atom, in a separated state, are directly bonded as substituents to the ring structure of the same ring; a reaction composition is provided which, in a hydrogenation reaction of the nitro group of said aromatic nitro compound, allows selectively hydrogenating the nitro group, and sufficiently reducing the separation of the halogen atom from the ring; also provided is a reaction system that uses this reaction composition. This reaction composition includes a catalyst which, with the aforementioned aromatic nitro compound as reactant, is used in a hydrogenation reaction of at least one of the one or more nitro groups of said reactant. Further, the reaction composition includes a base and an organic solvent. The catalyst includes a carrier, and Fe oxide particles and Pt particles supported by the carrier. Further, the base has basicity stronger than that of at least one of the aromatic amines having one or more amino groups obtained as the product of the hydrogenation reaction. Furthermore, the organic solvent can dissolve at least part of the reactant.