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    Plugged honeycomb structure
    1.
    发明授权
    Plugged honeycomb structure 有权

    公开(公告)号：US10850223B2

    公开(公告)日：2020-12-01

    申请号：US15704326

    申请日：2017-09-14

    申请人： NGK INSULATORS, LTD.

    发明人： Yukio Miyairi ,  Kazuto Miura ,  Tomohiro Iida ,  Takashi Aoki ,  Osamu Yasui

    IPC分类号： B01D46/00 ,  F01N3/02 ,  B01D46/24 ,  F01N3/022

    摘要： A plugged honeycomb structure includes a plurality of honeycomb segments, a bonding layer, and plugging portions plugging open ends of cells of the honeycomb segments. The honeycomb segments include circumferential segments and central segments. The circumferential segments include at least one specific circumferential segment in which pressure loss with soot when an amount of the deposited soot is 4 g/L is higher than the pressure loss with soot of the central segment as much as 15% or more and in which an open frontal area of the circumferential segment is the same as or larger than an open frontal area of the central segment. In a cross section of a honeycomb structure body which is perpendicular to an extending direction of the cells, a ratio of an area of the specific circumferential segment is 4% or more to a total area of the circumferential segments and the central segments.

    Honeycomb catalyst body
    6.
    发明授权
    Honeycomb catalyst body 有权
    蜂窝状催化剂体

    公开(公告)号：US09303542B2

    公开(公告)日：2016-04-05

    申请号：US14086023

    申请日：2013-11-21

    申请人： NGK INSULATORS, LTD.

    发明人： Takashi Aoki

    IPC分类号： B01D50/00 ,  F01N3/28 ,  B01J35/00 ,  B01J35/04 ,  B01J35/10 ,  B01J37/02 ,  C04B38/00 ,  C04B111/00

    CPC分类号： F01N3/2828 ,  B01J35/0006 ,  B01J35/002 ,  B01J35/006 ,  B01J35/04 ,  B01J35/10 ,  B01J35/1076 ,  B01J37/0215 ,  C04B38/0009 ,  C04B2111/0081 ,  C04B35/195 ,  C04B38/009

    摘要： A honeycomb catalyst body capable of containing in a limited space, having high mechanical strength, less pressure loss, and suitable purification performance is provided, and it includes a plugged honeycomb structure having porous partition walls defining cells, plugged portions, and porous projecting portions projecting so as to extend from the partition walls into the cells and being formed integrally with the partition walls; and catalysts loaded onto the projecting portions, wherein a porosity of the partition walls is 40 to 70%, thicknesses of the projecting portions is from 30 to 140% of thicknesses of the partition wall, an amount of the catalyst loaded onto the partition walls thereof is smaller than an amount of the catalyst loaded onto the projecting portions, one catalyst loaded onto projecting portions is a selective reduction catalyst, and another catalyst loaded onto projecting portions is an ammonia slip preventing catalyst.

    摘要翻译： 本发明提供一种蜂窝状催化剂体，其能够在有限的空间内容纳机械强度高，压力损失小，压缩损失小，合适的净化性能，其包括具有多孔分隔壁的堵塞蜂窝结构体，该多孔分隔壁具有孔， 从分隔壁延伸到电池中并与隔壁一体形成; 负载在突出部上的催化剂，其中分隔壁的孔隙率为40〜70％，突出部的厚度为隔壁的厚度的30〜140％，负载在其隔壁上的催化剂的量 小于装载到突出部分上的催化剂的量，装载到突出部分上的一种催化剂是选择性还原催化剂，负载在突出部分上的另一种催化剂是氨防滑催化剂。

    Plugged honeycomb structure
    7.
    发明授权
    Plugged honeycomb structure 有权
    堵塞蜂窝结构

    公开(公告)号：US09168479B2

    公开(公告)日：2015-10-27

    申请号：US13960000

    申请日：2013-08-06

    申请人： NGK INSULATORS, LTD.

    发明人： Takashi Aoki

    IPC分类号： B01D39/06 ,  B01D39/20 ,  B01D24/00 ,  B01D46/24 ,  F01N3/022

    CPC分类号： B01D46/2459 ,  B01D46/247 ,  B01D2046/2496 ,  F01N3/0222 ,  F01N2330/48 ,  F01N2450/28

    摘要： A plugged honeycomb structure includes a honeycomb structure section having porous partition walls, the plurality of cells including large cells and small cells having different open areas in a cross section perpendicular to an extending direction of the cells; inflow side plugged portions arranged in inflow side end portions of the predetermined cells including the large cells and the small cells among the plurality of cells; and outflow side plugged portions arranged in outflow side end portions of the remaining cells including the large cells and the small cells among the plurality of cells. The predetermined cells are outflow cells having the plugged inflow side end portions and the open outflow side end portions in the honeycomb structure section, and the remaining cells are inflow cells having the plugged outflow side end portions and the open inflow side end portions in the honeycomb structure section.

    摘要翻译： 堵塞蜂窝结构体包括具有多孔分隔壁的蜂窝结构部分，所述多个单元包括大直径的单元和与所述单元的延伸方向垂直的截面的开口面积不同的小单元; 流入侧堵塞部分布置在包括多个单元中的大单元和小单元的预定单元的流入侧端部; 以及布置在包括多个单元中的大单元和小单元的剩余单元的流出侧端部中的流出侧插入部分。 预定的电池是在蜂窝结构部中具有插入流入侧端部和开放流出侧端部的流出电池，剩余的电池为蜂窝状的流入侧端部和开放流入侧端部的流入电池 结构部分。

    Plugged honeycomb structure
    8.
    发明授权
    Plugged honeycomb structure 有权

    公开(公告)号：US10857498B2

    公开(公告)日：2020-12-08

    申请号：US15704352

    申请日：2017-09-14

    申请人： NGK INSULATORS, LTD.

    发明人： Yukio Miyairi ,  Kazuto Miura ,  Tomohiro Iida ,  Takashi Aoki ,  Osamu Yasui

    IPC分类号： B01D46/24 ,  B01D46/00 ,  F01N3/022

    摘要： A honeycomb structure body is constituted of a circumferential region including the outermost circumference in a cross section of the honeycomb structure body which is perpendicular to an extending direction of cells, and a central region excluding the circumferential region. The circumferential region includes a specific circumferential region in which pressure loss with soot when an amount of the deposited soot is 4 g/L is higher than the pressure loss with soot of the central region as much as 15% or more and in which an open frontal area of the circumferential region is the same as or larger than an open frontal area of the central region. In the cross section of the honeycomb structure body, a ratio of an area of the specific circumferential region is 5% or more to a total area of the circumferential region and the central region.

    Honeycomb catalyst body
    10.
    发明授权
    Honeycomb catalyst body 有权
    蜂窝状催化剂体

    公开(公告)号：US09303543B2

    公开(公告)日：2016-04-05

    申请号：US14090165

    申请日：2013-11-26

    申请人： NGK INSULATORS, LTD.

    发明人： Takashi Aoki

    IPC分类号： B01D50/00 ,  F01N3/28 ,  B01J35/00 ,  B01J35/04 ,  B01J35/10 ,  B01J37/02 ,  C04B38/00

    CPC分类号： F01N3/2828 ,  B01J35/0006 ,  B01J35/002 ,  B01J35/04 ,  B01J35/10 ,  B01J35/1076 ,  B01J37/0215 ,  C04B35/195 ,  C04B38/0006 ,  C04B38/0009 ,  C04B2111/00793 ,  C04B2111/0081 ,  C04B2235/3217 ,  C04B2235/3218 ,  C04B2235/3418 ,  C04B2235/349 ,  C04B38/0054 ,  C04B38/0074 ,  C04B38/068

    摘要： A honeycomb catalyst body having high mechanical strength, less pressure loss, and suitable purification performance is provided, and includes a plugged honeycomb structure having porous partition walls defining cells extending from one end face to another end face, inflow side plugged portions provided at one ends of the predetermined cells, outflow side plugged portions provided at another ends of the remaining cells, and porous projecting portions projecting so as to extend from the partition walls into the cells and being formed integrally with the partition walls; and a catalyst loaded onto the projecting portions of the plugged honeycomb structure, wherein porosities of the partition walls are 40% or more and smaller than 60%, thicknesses of the projecting portions are from 30 to 140% of thicknesses of the partition walls, and a catalyst amount loaded onto the partition walls thereof is smaller than a catalyst amount loaded onto the projecting portions.

    摘要翻译： 提供了具有高机械强度，较低压力损失和合适的净化性能的蜂窝状催化剂体，并且包括具有多孔分隔壁的堵塞蜂窝结构体，所述蜂窝状结构体具有限定从一个端面延伸到另一个端面的孔的多孔分隔壁，设置在一端的流入侧堵塞部 设置在剩余单元的另一端的流出侧堵塞部分以及从分隔壁延伸到单元中突出并与隔壁一体形成的多孔突出部分; 以及负载在堵塞蜂窝结构体的突出部上的催化剂，其中隔壁的孔隙率为40％以上且小于60％，突出部的厚度为隔壁的厚度的30〜140％， 负载在其隔壁上的催化剂量小于装载到突出部上的催化剂量。