JP5789126B2 - 排ガス酸化触媒 - Google Patents
排ガス酸化触媒 Download PDFInfo
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- JP5789126B2 JP5789126B2 JP2011117314A JP2011117314A JP5789126B2 JP 5789126 B2 JP5789126 B2 JP 5789126B2 JP 2011117314 A JP2011117314 A JP 2011117314A JP 2011117314 A JP2011117314 A JP 2011117314A JP 5789126 B2 JP5789126 B2 JP 5789126B2
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- catalyst
- catalyst layer
- exhaust gas
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- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Description
(1)複数の排ガス流路が形成された触媒基材と、触媒基材の排ガス流路表面に形成された触媒層とを有する排ガス酸化触媒であって、最下面触媒層と、排ガス流路内に露出した最上面触媒層と、最下面触媒層と最上面触媒層との間に位置して設けられた中間触媒層とからなる触媒層が、排ガス流路表面の25%以上を被覆するように設けられ、最下面触媒層は触媒成分として、少なくとも酸素吸蔵剤を含有するが、炭化水素吸着剤は含有しておらず、中間触媒層は触媒成分として、少なくとも金属酸化物担体に担持された触媒金属と、炭化水素吸着剤とを含有し、最上面触媒層は触媒成分として少なくとも酸素吸蔵剤と炭化水素吸着剤とを含有していることを特徴とする排ガス酸化触媒、
(2)中間触媒層が、触媒成分及び/又は含有量の異なる2層以上の層よりなる上記(1)の排ガス酸化触媒、
(3)最上面触媒層は、酸素吸蔵剤と炭化水素吸着剤とともに、更に金属酸化物担体に担持された触媒金属を含有する上記(1)又は(2)の排ガス酸化触媒、
(4)炭化水素吸着剤が、ゼオライトである上記(1)〜(3)のいずれかの排ガス酸化触媒、
を要旨とするものである。
実施例1
各触媒層を形成するために下記のスラリーを調製した。
1)最下面触媒層形成用スラリー:酸素吸蔵剤として酸化セリウム酸化ジルコニウム複合化合物、酸化アルミニウムを含むスラリー(酸素吸蔵剤63質量%、酸化アルミニウム37質量%)。
2)中間触媒層形成用スラリー:炭化水素吸着剤としてβ−ゼオライト、触媒金属として白金、パラジウム(白金硝酸塩及びパラジウム硝酸塩として添加)、酸化アルミニウムを含むスラリー(炭化水素吸着剤11.2質量%、白金1.6質量%、パラジウム0.8質量%、酸化アルミニウム86.4質量%)。
3)最上面触媒層形成用スラリー:酸素吸蔵剤として酸化セリウム酸化ジルコニウム複合化合物、触媒金属として白金(白金硝酸塩として添加)、炭化水素吸着剤としてβ−ゼオライト、酸化アルミニウムを含むスラリー(酸素吸蔵剤27質量%、炭化水素吸着剤としてβ−ゼオライト45質量%、白金0.1質量%、酸化アルミニウム27.9質量%)。
ハニカム状の触媒基材(NGK製、1L)を、最下面触媒層形成用スラリーに浸漬し、乾燥時付着量が49g/Lとなるようにスラリーを塗布、乾燥した後、500℃で焼成し、最下面触媒層を形成した。次いで最下面触媒層上に、乾燥時付着量が110g/Lとなるように中間触媒層形成用スラリーを塗布、乾燥した後、500℃で焼成し、中間触媒層を形成した。更にこの中間触媒層の上に、乾燥時付着量が50g/Lとなるように最上面触媒層形成用スラリーを塗布、乾燥した後、500℃で焼成し、最上面触媒層を形成し、3層の触媒層を有する排ガス酸化触媒を得た(排ガス流路表面に対する3層の触媒層の割合100%)。
各触媒層を形成するために下記のスラリーを調製した。
1)最下面触媒層形成用スラリー:酸素吸蔵剤として酸化セリウム酸化ジルコニウム複合化合物、酸化アルミニウムを含むスラリー(酸素吸蔵剤63質量%、酸化アルミニウム37質量%)。
2)中間触媒層形成用スラリー:炭化水素吸着剤としてβ−ゼオライト及びZSM5ゼオライト、触媒金属として白金、パラジウム(白金硝酸塩及びパラジウム硝酸塩として添加)、酸化アルミニウムを含むスラリー(炭化水素吸着剤としてβ−ゼオライト5質量%及びZSM5ゼオライト5質量%、白金1.1質量%、パラジウム0.5質量%、酸化アルミニウム88.4質量%)。
3)最上面触媒層形成用スラリー:酸素吸蔵剤として酸化セリウム酸化ジルコニウム複合化合物、触媒金属として白金(白金硝酸塩として添加)、炭化水素吸着剤としてβ−ゼオライト及びZAM5ゼオライト、酸化アルミニウムを含むスラリー(酸素吸蔵剤27.4質量%、炭化水素吸着剤としてβ−ゼオライト22.5質量%及びZSM5ゼオライト22.5質量%、白金0.1質量%、酸化アルミニウム27.5質量%)。
ハニカム状の触媒基材(NGK製、1L)を、最下面触媒層形成用スラリーに浸漬し、乾燥時付着量が49g/Lとなるようにスラリーを塗布、乾燥した後、500℃で焼成し、最下面触媒層を形成した。次いで最下面触媒層上に、乾燥時付着量が110g/Lとなるように中間触媒層形成用スラリーを塗布、乾燥した後、500℃で焼成し、中間触媒層を形成した。更にこの中間触媒層の上に、乾燥時付着量が60g/Lとなるように最上面触媒層形成用スラリーを塗布、乾燥した後、500℃で焼成し、最上面触媒層を形成し、3層の触媒層を有する排ガス酸化触媒を得た(排ガス流路表面に対する3層の触媒層の割合100%)。
各触媒層を形成するために下記のスラリーを調製した。
1)最下面触媒層形成用スラリー:酸素吸蔵剤として酸化セリウム酸化ジルコニウム複合化合物、酸化アルミニウムを含むスラリー(酸素吸蔵剤63質量%、酸化アルミニウム37質量%)。
2)中間触媒層形成用スラリー:炭化水素吸着剤としてβ−ゼオライト、触媒金属として白金、パラジウム(白金硝酸塩及びパラジウム硝酸塩として添加)、酸化アルミニウムを含むスラリー(炭化水素吸着剤としてβ−ゼオライト9質量%、白金1.1質量%、パラジウム0.5質量%、酸化アルミニウム89.4質量%)。
3)最上面触媒層形成用スラリー:酸素吸蔵剤として酸化セリウム酸化ジルコニウム複合化合物、炭化水素吸着剤としてβ−ゼオライト、酸化アルミニウムを含むスラリー(酸素吸蔵剤31質量%、炭化水素吸着剤としてβ−ゼオライト36質量%、酸化アルミニウム33質量%)。
ハニカム状の触媒基材(NGK製、1L)を、最下面触媒層形成用スラリーに浸漬し、乾燥時付着量が55g/Lとなるようにスラリーを塗布、乾燥した後、500℃で焼成し、最下面触媒層を形成した。次いで最下面触媒層上に、乾燥時付着量が110g/Lとなるように中間触媒層形成用スラリーを塗布、乾燥した後、500℃で焼成し、中間触媒層を形成した。更にこの中間触媒層の上に、乾燥時付着量が60g/Lとなるように最上面触媒層形成用スラリーを塗布、乾燥した後、500℃で焼成し、最上面触媒層を形成し、3層の触媒層を有する排ガス酸化触媒を得た(排ガス流路表面に対する3層の触媒層の割合100%)。
酸素吸蔵剤を含有する最下面触媒層を形成することなく、下記触媒金属層形成用スラリー、最上面触媒層形成用スラリーを用いて排ガス酸化触媒を製造した。
1)触媒金属含有層形成用スラリー:触媒金属として白金及びパラジウム(白金硝酸塩、パラジウム硝酸塩として添加)、酸化アルミニウムを含むスラリー(白金1.0質量%、パラジウム0.5質量%、無機担体98.5質量%)。
2)最上面触媒層形成用スラリー:炭化水素吸着剤としてβ−ゼオライト、触媒金属として白金(白金硝酸塩として添加)、酸化アルミニウムを含むスラリー(炭化水素吸着剤としてβ−ゼオライト63.9質量%、白金0.1質量%、酸化アルミニウム36質量%)。
ハニカム状の触媒基材(NGK製、1L)を、触媒金属含有層形成用スラリーに浸漬し、乾燥時付着量が178g/Lとなるようにスラリーを塗布、乾燥した後、500℃で焼成し、触媒金属含有層を形成した。触媒金属含有層の上に、最上面側触媒層形成用スラリーを、乾燥時付着量が60g/Lとなるように塗布、乾燥した後、500℃で焼成し、最上面側触媒層を形成し、2層の触媒層を有する排ガス酸化触媒を得た(排ガス流路表面に対する2層の触媒層の割合100%)。
炭化水素吸着剤としてβ−ゼオライト、触媒金属として白金及びパラジウム(白金硝酸塩、パラジウム硝酸塩として添加)、酸化アルミニウムを含むスラリー(炭化水素吸着剤としてβ−ゼオライト47.72質量%、触媒金属として白金1.44質量%及びパラジウム0.72質量%、酸化アルミニウム50.12質量%)を、乾燥時付着量が180g/Lとなるようにハニカム状の触媒基材(NGK製、1L)に塗布、乾燥した後、500℃で焼成して触媒層を形成し、触媒金属を含有する1層の触媒層を有する排ガス酸化触媒を得た(排ガス流路表面に対する1層の触媒層の割合100%)。
各触媒層を形成するために下記のスラリーを調製した。
1)最下面触媒層形成用スラリー:酸化アルミニウム100質量%を含むスラリー(酸素吸蔵剤を含まず)。
2)中間触媒層形成用スラリー:炭化水素吸着剤としてβ−ゼオライト、触媒金属として白金及びパラジウム(白金硝酸塩及びパラジウム硝酸塩として添加)、酸化アルミニウムを含むスラリー(炭化水素吸着剤としてβ−ゼオライト11.2質量%、白金1.6質量%、パラジウム0.8質量%、酸化アルミニウム86.4質量%)。
3)最上面触媒層形成用スラリー:炭化水素吸着剤としてβゼオライト、触媒金属として白金(白金硝酸塩として添加)、酸化アルミニウムを含むスラリー(酸素吸蔵剤を含まず、炭化水素吸着剤としてβ−ゼオライト63.9質量%、白金0.1質量%、酸化アルミニウム36質量%)。
ハニカム状の触媒基材(NGK製、1L)を、最下面触媒層形成用スラリーに浸漬し、乾燥時付着量が49g/Lとなるようにスラリーを塗布、乾燥した後、500℃で焼成し、最下面側触媒層を形成した。次いで最下面触媒層上に、乾燥時付着量が110g/Lとなるように中間触媒層形成用スラリーを塗布、乾燥した後、500℃で焼成し、中間触媒層を形成した。更にこの中間触媒層の上に、乾燥時付着量が50g/Lとなるように最上面触媒層形成用スラリーを塗布、乾燥した後、500℃で焼成し、最上面触媒層を形成し、3層の触媒層を有する排ガス酸化触媒を得た(排ガス流路表面に対する3層の触媒層の割合100%)。
各触媒層を形成するために下記のスラリーを調製した。
1)最下面触媒層形成用スラリー:酸素吸蔵剤として酸化セリウム−酸化ジルコニウム複合酸化物、酸化アルミニウムを含むスラリー(酸素吸蔵剤63質量%、酸化アルミニウム37質量%)。
2)中間触媒層形成用スラリー:炭化水素吸着剤としてβ−ゼオライト、触媒金属として白金及びパラジウム(白金硝酸塩及びパラジウム硝酸塩として添加)、酸化アルミニウムを含むスラリー(炭化水素吸着剤としてβ−ゼオライト11.2質量%、白金1.6質量%、パラジウム0.8質量%、酸化アルミニウム86.4質量%)。
3)最上面触媒層形成用スラリー:炭化水素吸着剤としてβ−ゼオライト、触媒金属として白金(白金硝酸塩として添加)、酸化アルミニウムを含むスラリー(酸素吸蔵剤を含まず、炭化水素吸着剤としてβ−ゼオライト63.9質量%、白金0.1質量%、酸化アルミニウム36質量%)。
ハニカム状の触媒基材(NGK製、1L)を、最下面触媒層形成用スラリーに浸漬し、乾燥時付着量が49g/Lとなるようにスラリーを塗布、乾燥した後、500℃で焼成し、最下面触媒層を形成した。次いで最下面触媒層上に、乾燥時付着量が110g/Lとなるように中間触媒層形成用スラリーを塗布、乾燥した後、500℃で焼成し、中間触媒層を形成した。更にこの中間触媒層の上に、乾燥時付着量が50g/Lとなるように最上面触媒層形成用スラリーを塗布、乾燥した後、500℃で焼成し、最上面触媒層を形成し、3層の触媒層を有する排ガス酸化触媒を得た(排ガス流路表面に対する3層の触媒層の割合100%)。
各触媒層を形成するために下記のスラリーを調製した。
1)最下面触媒層形成用スラリー:酸素吸蔵剤として酸化セリウム−酸化ジルコニウム複合酸化物、酸化アルミニウム、触媒金属として白金(白金硝酸塩として添加)、炭化水素吸着剤としてβ−ゼオライトを含むスラリー(炭化水素吸着剤としてβ−ゼオライト47質量%、酸素吸蔵剤29質量%、酸化アルミニウム23.9質量%、白金0.1質量%)。
2)中間触媒層形成用スラリー:触媒金属として白金及びパラジウム(白金硝酸塩及びパラジウム硝酸塩として添加)、酸化アルミニウムを含むスラリー(炭化水素吸着剤を含まず、白金2.4質量%、パラジウム1.2質量%、酸化アルミニウム96.4質量%)。
3)最上面触媒層形成用スラリー:炭化水素吸着剤としてβ−ゼオライト、酸素吸蔵剤として酸化セリウム−酸化ジルコニウム複合酸化物、触媒金属として白金(白金硝酸塩として添加)、酸化アルミニウムを含むスラリー(酸素吸蔵剤37.5質量%、炭化水素吸着剤としてβ−ゼオライト37.5質量%、白金0.1質量%、酸化アルミニウム24.9質量%)。
ハニカム状の触媒基材(NGK製、1L)を、最下面触媒層形成用スラリーに浸漬し、乾燥時付着量が52g/Lとなるようにスラリーを塗布、乾燥した後、500℃で焼成し、最下面触媒層を形成した。次いで最下面触媒層上に、乾燥時付着量が72g/Lとなるように中間触媒層形成用スラリーを塗布、乾燥した後、500℃で焼成し、中間触媒層を形成した。更にこの中間触媒層の上に、乾燥時付着量が81g/Lとなるように最上面触媒層形成用スラリーを塗布、乾燥した後、500℃で焼成し、最上面触媒層を形成し、3層の触媒層を有する排ガス酸化触媒を得た(排ガス流路表面に対する3層の触媒層の割合100%)。
各触媒層を形成するために下記のスラリーを調製した。
1)最下面触媒層形成用スラリー:酸素吸蔵剤として酸化セリウム−酸化ジルコニウム複合酸化物、酸化アルミニウムを含むスラリー(酸素吸蔵剤63質量%、酸化アルミニウム37質量%)。
2)中間触媒層形成用スラリー:触媒金属として白金及びパラジウム(白金硝酸塩及びパラジウム硝酸塩として添加)、酸化アルミニウムを含むスラリー(炭化水素吸着剤を含まず、白金1.1質量%、パラジウム0.5質量%、酸化アルミニウム98.4質量%)。
3)最上面触媒層形成用スラリー:炭化水素吸着剤としてβ−ゼオライト及びZSM5、酸素吸蔵剤として酸化セリウム−酸化ジルコニウム複合酸化物、触媒金属として白金(白金硝酸塩として添加)、酸化アルミニウムを含むスラリー(酸素吸蔵剤27.4質量%、炭化水素吸着剤としてβ−ゼオライト25質量%及びZSM5ゼオライト20質量%、白金0.1質量%、酸化アルミニウム27.5質量%)。
ハニカム状の触媒基材(NGK製、1L)を、最下面触媒層形成用スラリーに浸漬し、乾燥時付着量が49g/Lとなるようにスラリーを塗布、乾燥した後、500℃で焼成し、最下面触媒層を形成した。次いで最下面触媒層上に、乾燥時付着量が110g/Lとなるように中間触媒層形成用スラリーを塗布、乾燥した後、500℃で焼成し、中間触媒層を形成した。更にこの中間触媒層の上に、乾燥時付着量が67g/Lとなるように最上面触媒層形成用スラリーを塗布、乾燥した後、500℃で焼成し、最上面触媒層を形成し、3層の触媒層を有する排ガス酸化触媒を得た(排ガス流路表面に対する3層の触媒層の割合100%)。
各触媒層を形成するために下記のスラリーを調製した。
1)最下面触媒層形成用スラリー:バインダーとしてアルミナ100質量%を含むスラリー(酸素吸蔵剤を含まず)。
2)中間触媒層形成用スラリー:触媒金属として白金(白金硝酸塩として添加)、酸化アルミニウムを含むスラリー(炭化水素吸着剤を含まず、白金3.3質量%、酸化アルミニウム97.9質量%)。
3)最上面触媒層形成用スラリー:酸化アルミニウム100質量%を含むスラリー(酸素吸蔵剤、炭化水素吸着剤を含まず)。
ハニカム状の触媒基材(NGK製、1L)を、最下面触媒層形成用スラリーに浸漬し、乾燥時付着量が73g/Lとなるようにスラリーを塗布、乾燥した後、500℃で焼成し、最下面触媒層を形成した。次いで最下面触媒層上に、乾燥時付着量が55g/Lとなるように中間触媒層形成用スラリーを塗布、乾燥した後、500℃で焼成し、中間触媒層を形成した。更にこの中間触媒層の上に、乾燥時付着量が47g/Lとなるように最上面触媒層形成用スラリーを塗布、乾燥した後、500℃で焼成し、最上面触媒層を形成し、3層の触媒層を有する排ガス酸化触媒を得た(排ガス流路表面に対する3層の触媒層の割合100%)。
実施例1で用いたと同じ最下面触媒層形成用スラリー、中間触媒層形成用スラリー及び最上面触媒層形成用スラリーを用い、まずハニカム状の触媒基材(NGK製、1L)を、最下面触媒層形成用スラリーに浸漬して、最下面触媒層形成用スラリーの塗布範囲が触媒基材の排ガス流路長の80%となるように塗布、乾燥させた後(乾燥時付着量49g/L)、500℃で焼成して最下面触媒層を形成した。次いでこの上に、中間触媒層形成用スラリーを、塗布範囲が排ガス流路長の100%となるように塗布、乾燥させた後(乾燥時付着量110g/L)、500℃で焼成して中間触媒層を形成した。更にこの上に最上面触媒層形成用スラリーを、塗布長さが排ガス流路長の80%となるように、最下面触媒層形成用スラリーの塗布位置と重なる位置に塗布、乾燥させた後乾燥時付着量50g/L)、500℃で焼成して最上面触媒層を形成し、3層の触媒層を有する排ガス酸化触媒を得た(排ガス流路表面に対する3層の触媒層の割合80%)。
実施例1で用いたと同じ最下面触媒層形成用スラリー、中間触媒層形成用スラリー及び最上面触媒層形成用スラリーを用い、まずハニカム状の触媒基材(NGK製、1L)を、最下面触媒層形成用スラリーに浸漬して、最下面触媒層形成用スラリーの塗布範囲が触媒基材の排ガス流路長の50%となるように塗布、乾燥させた後(乾燥時付着量49g/L)、500℃で焼成して最下面触媒層を形成した。次いでこの上に、中間触媒層形成用スラリーを、塗布範囲が排ガス流路長の100%となるように塗布、乾燥させた後(乾燥時付着量110g/L)、500℃で焼成して中間触媒層を形成した。更にこの上に最上面触媒層形成用スラリーを、塗布長さが排ガス流路長の50%となるように、最下面触媒層形成用スラリーの塗布位置と重なる位置に塗布、乾燥させた後乾燥時付着量50g/L)、500℃で焼成して最上面触媒層を形成し、3層の触媒層を有する排ガス酸化触媒を得た(排ガス流路表面に対する3層の触媒層の割合50%)。
2 排ガス流路
3 触媒基材
4 排ガス流路表面
5 触媒層
6 最下面触媒層
7 中間触媒層
8 最上面触媒層
Claims (4)
- 複数の排ガス流路が形成された触媒基材と、触媒基材の排ガス流路表面に形成された触媒層とを有する排ガス酸化触媒であって、最下面触媒層と、排ガス流路内に露出した最上面触媒層と、最下面触媒層と最上面触媒層との間に位置して設けられた中間触媒層とからなる触媒層が、排ガス流路表面の25%以上を被覆するように設けられ、最下面触媒層は触媒成分として、少なくとも酸素吸蔵剤を含有するが、炭化水素吸着剤は含有しておらず、中間触媒層は触媒成分として、少なくとも金属酸化物担体に担持された触媒金属と、炭化水素吸着剤とを含有し、最上面触媒層は触媒成分として少なくとも酸素吸蔵剤と炭化水素吸着剤とを含有していることを特徴とする排ガス酸化触媒。
- 中間触媒層が、触媒成分及び/又は含有量の異なる2層以上の層よりなる請求項1記載の排ガス酸化触媒。
- 最上面触媒層は、酸素吸蔵剤と炭化水素吸着剤とともに、更に金属酸化物担体に担持された触媒金属を含有する請求項1又は2に記載の排ガス酸化触媒。
- 炭化水素吸着剤が、ゼオライトである請求項1〜3のいずれかに記載の排ガス酸化触媒。
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GB1201218.3A GB2494218B (en) | 2011-05-25 | 2012-01-25 | Exhaust gas oxidation catalyst |
CN201280024838.3A CN103561850A (zh) | 2011-05-25 | 2012-05-25 | 废气氧化催化剂 |
EP12723897.0A EP2714247B1 (en) | 2011-05-25 | 2012-05-25 | Exhaust gas oxidation catalyst |
BR112013030110-4A BR112013030110A2 (pt) | 2011-05-25 | 2012-05-25 | catalisador de oxidação de gás de escape, e , sistema de escape para um motor de combustão interna a diesel |
US14/122,051 US8765067B1 (en) | 2011-05-25 | 2012-05-25 | Exhaust gas oxidation catalyst |
DE102012208876.8A DE102012208876B4 (de) | 2011-05-25 | 2012-05-25 | Abgasoxidationskatalysator |
PCT/GB2012/051190 WO2012160391A1 (en) | 2011-05-25 | 2012-05-25 | Exhaust gas oxidation catalyst |
RU2013157560/04A RU2584420C2 (ru) | 2011-05-25 | 2012-05-25 | Катализатор окисления выхлопных газов |
KR1020137033111A KR20140045396A (ko) | 2011-05-25 | 2012-05-25 | 배기 가스 산화 촉매 |
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JP5310767B2 (ja) * | 2011-03-29 | 2013-10-09 | トヨタ自動車株式会社 | 排ガス浄化触媒 |
JP5938819B2 (ja) | 2011-10-06 | 2016-06-22 | ジョンソン、マッセイ、パブリック、リミテッド、カンパニーJohnson Matthey Public Limited Company | 排気ガス処理用酸化触媒 |
JP6194648B2 (ja) * | 2013-06-07 | 2017-09-13 | 東ソー株式会社 | 石油樹脂製造用触媒およびそれを用いた石油樹脂の製造方法 |
WO2015143225A1 (en) * | 2014-03-21 | 2015-09-24 | SDCmaterials, Inc. | Compositions for passive nox adsorption (pna) systems |
GB201405868D0 (en) * | 2014-04-01 | 2014-05-14 | Johnson Matthey Plc | Diesel oxidation catalyst with NOx adsorber activity |
DE102015209987A1 (de) * | 2014-06-04 | 2015-12-10 | Johnson Matthey Public Limited Company | Nicht-PGM-Ammoniakschlupfkatalysator |
WO2016130456A1 (en) * | 2015-02-09 | 2016-08-18 | Basf Corporation | Diesel oxidation catalyst |
KR20220022477A (ko) * | 2019-05-22 | 2022-02-25 | 바스프 코포레이션 | 디젤 산화 촉매 및 저온 nox 흡착제를 포함하는 조정된 배출물 제어 시스템 |
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KR100318575B1 (ko) | 1991-11-26 | 2002-04-22 | 스티븐 아이. 밀러 | 세리아-알루미나산화촉매및그사용방법 |
US6221804B1 (en) | 1998-01-27 | 2001-04-24 | Mazda Motor Corporation | Catalyst for purifying exhaust gas and manufacturing method thereof |
JP3724708B2 (ja) * | 1999-11-26 | 2005-12-07 | 日産自動車株式会社 | 排気ガス浄化用触媒 |
JP3664019B2 (ja) * | 1999-12-27 | 2005-06-22 | 日産自動車株式会社 | 触媒コンバータ |
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EP2714247A1 (en) | 2014-04-09 |
DE102012208876A1 (de) | 2012-11-29 |
GB201201218D0 (en) | 2012-03-07 |
US20140193306A1 (en) | 2014-07-10 |
RU2013157560A (ru) | 2015-06-27 |
BR112013030110A2 (pt) | 2020-12-01 |
CN103561850A (zh) | 2014-02-05 |
GB2494218B (en) | 2013-09-04 |
US8765067B1 (en) | 2014-07-01 |
RU2584420C2 (ru) | 2016-05-20 |
GB2494218A (en) | 2013-03-06 |
EP2714247B1 (en) | 2018-03-28 |
WO2012160391A1 (en) | 2012-11-29 |
JP2012245443A (ja) | 2012-12-13 |
DE102012208876B4 (de) | 2015-10-22 |
KR20140045396A (ko) | 2014-04-16 |
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