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公开(公告)号：EP2774671A1
公开(公告)日：2014-09-10
申请号：EP12845120.0
申请日：2012-09-25
IPC分类号： B01J27/053 , B01D53/94 , B01J37/02
CPC分类号： B01J27/053 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/2042 , B01D2255/407 , B01D2255/9022 , B01D2255/9025 , B01D2255/9202 , B01D2255/9205 , B01D2255/9207 , B01J23/464 , B01J23/58 , B01J23/63 , B01J35/006 , B01J37/0244 , Y02A50/2324 , Y02T10/22
摘要： The invention discloses a catalyst for purifying exhaust gas apparatus having a Three-way Catalyst (TWC) superior in purification performance of, particularly, NO x , among carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NO x ), in exhaust gas discharged from a gasoline automobile. It is provided by a catalyst for purifying exhaust gas containing a Rhodium (Rh)-supported porous inorganic oxide and barium sulfate (BaSO 4 ), with supported or not-supported onto alumina, characterized in that at least a part of Rh is present independently from Ba inside a catalyst layer, and Rh-Ba deviation rate determined from EPMA analysis is 10% to 80%. It is preferable that supported amount of Rhodium is 0.05 g/L to 2.0 g/L, and amount of barium sulfate is 0.5 g/L to 25 g/L and 0.5 g/L to 15 g/L, in the case of being supported and not-supported onto alumina, respectively.
摘要翻译： 本发明公开了一种用于净化排气装置的催化剂，其具有在排气中的一氧化碳（CO），烃（HC）和氮氧化物（NOx）中特别是NOx的净化性能优异的三效催化剂（TWC） 从汽油汽车排出的气体。 本发明提供一种废气净化用催化剂，其含有铑（Rh）负载型多孔无机氧化物和硫酸钡（BaSO 4），负载或不负载于氧化铝上，其特征在于，Rh的至少一部分独立存在于 Ba在催化剂层内，并且由EPMA分析确定的Rh-Ba偏差率为10％至80％。 铑的负载量优选为0.05g / L〜2.0g / L，硫酸钡的量为0.5g / L〜25g / L，0.5g / L〜15g / L 分别支撑和不支撑到氧化铝上。
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公开(公告)号：EP4035774A1
公开(公告)日：2022-08-03
申请号：EP20868793.9
申请日：2020-09-01
摘要： A method for producing an exhaust gas purification catalyst that purifies exhaust gas emitted from an internal combustion engine, the method including a substrate providing step of providing a treated wall-flow substrate 100 having a partition to which a solid resin 21 is adhered, and a catalyst applying step of applying a catalyst slurry 31a to the partition, wherein the amount of the adhered solid resin 21 is 1.50 to 9.41 g/L.
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3.发明公开
公开(公告)号：EP3466909A1
公开(公告)日：2019-04-10
申请号：EP17806352.5
申请日：2017-05-15
摘要： Provided is a method of producing a cylindrical honeycomb structure with film that is able to prevent catalyst slurry from leaching out to an outer portion thereof during wash coating and is able to ensure ventilation of the outer portion when used as a GPF, the method enabling production in a stable manner at low cost on a mass-production basis. The present invention is a method of producing a film-coated cylindrical honeycomb structure formed with a coating liquid on an outer portion of a cylindrical honeycomb structure including partition walls and the outer portion, the partition walls forming a plurality of cells, the outer portion serving as a circumferential side. In the method, the cylindrical honeycomb structure is mounted between at least two rollers such that the circumferential side of the cylindrical honeycomb structure contacts with circumferential sides of the rollers, the coating liquid supplied from an application part is deposited on the cylindrical honeycomb structure while being rotated, and then the deposited coating liquid is dried or cured to form the film on the outer portion.
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公开(公告)号：EP2774671B1
公开(公告)日：2020-10-28
申请号：EP12845120.0
申请日：2012-09-25
IPC分类号： B01J27/053 , B01D53/94 , B01J37/02
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5.发明公开
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
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.
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