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1. WO2019131796 - PHOSPHORUS-COMPOUND-CONTAINING-EXHAUST-GAS PURIFYING CATALYST

Publication Number WO/2019/131796
Publication Date 04.07.2019
International Application No. PCT/JP2018/047942
International Filing Date 26.12.2018
IPC
B01J 35/04 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
02Solids
04Foraminous structures, sieves, grids, honeycombs
B01D 53/94 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34Chemical or biological purification of waste gases
92of engine exhaust gases
94by catalytic processes
B01J 23/63 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/113
38of noble metals
54combined with metals, oxides or hydroxides provided for in groups B01J23/02-B01J23/36118
56Platinum group metals
63with rare earths or actinides
F01N 3/10 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08for rendering innocuous
10by thermal or catalytic conversion of noxious components of exhaust
F01N 3/28 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08for rendering innocuous
10by thermal or catalytic conversion of noxious components of exhaust
24characterised by constructional aspects of converting apparatus
28Construction of catalytic reactors
CPC
B01D 2255/1023
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
10Noble metals or compounds thereof
102Platinum group metals
1023Palladium
B01D 2255/1025
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
10Noble metals or compounds thereof
102Platinum group metals
1025Rhodium
B01D 2255/2042
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
20Metals or compounds thereof
204Alkaline earth metals
2042Barium
B01D 2255/2063
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
20Metals or compounds thereof
206Rare earth metals
2063Lanthanum
B01D 2255/2065
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
20Metals or compounds thereof
206Rare earth metals
2065Cerium
B01D 2255/20715
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
20Metals or compounds thereof
207Transition metals
20715Zirconium
Applicants
  • ユミコア日本触媒株式会社 UMICORE SHOKUBAI JAPAN CO., LTD. [JP]/[JP]
Inventors
  • 久野 弘尊 KUNO, Hirotaka
  • 中島 優 NAKASHIMA, Masashi
  • 中間 公博 NAKAMA, Kimihiro
Agents
  • 八田国際特許業務法人 HATTA & ASSOCIATES
Priority Data
2017-25411328.12.2017JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) PHOSPHORUS-COMPOUND-CONTAINING-EXHAUST-GAS PURIFYING CATALYST
(FR) CATALYSEUR DE PURIFICATION DE GAZ D’ÉCHAPPEMENT CONTENANT UN COMPOSÉ DE PHOSPHORE
(JA) リン化合物含有排ガス浄化用触媒
Abstract
(EN) The present invention provides a phosphorus-compound-containing-exhaust-gas purifying catalyst that has: a fire-resistant three-dimensional structure that is provided so as to extend from a gas-inflow-side end face to a gas-outflow-side end face and that has a partition wall for separately forming a plurality of gas flow channels penetrating from the gas-inflow-side end face to the gas-outflow-side end face; a lower catalyst layer that is formed on the partition wall continuously from the gas-inflow-side end face and that contains Pd; a gas-inflow-side upper catalyst layer that is located on the outermost surface of the partition wall, that is formed continuously from the gas-inflow-side end face, and that contains Rh; and a gas-outflow-side upper catalyst layer that is located on the outermost surface of the partition wall, that is formed continuously from the gas-outflow-side end face, and that contains Rh. The gas-inflow-side upper catalyst layer and the gas-outflow-side upper catalyst layer are disposed so as to be away from each other along the direction of the gas flow channels. The length of the lower catalyst layer along the direction of the gas flow channels is 15 mm or longer. The percentage of the length thereof with respect to the total length of each of the gas flow channels is 18% or greater and less than 100%.
(FR) La présente invention concerne un catalyseur de purification de gaz d'échappement contenant un composé de phosphore qui possède : une structure tridimensionnelle à l'épreuve du feu disposée de façon à se prolonger d'une face terminale du côté d'entrée de gaz à une face terminale du côté sortie de gaz et une cloison de séparation formant une pluralité de canaux d'écoulement de gaz individuels qui traversent la face terminale du côté entrée de gaz jusqu'à la face terminale du côté sortie de gaz; une couche de catalyseur inférieure formée sur la cloison de séparation de façon continue à partir de la face terminale du côté entrée de gaz et qui contient du Pd; une couche de catalyseur supérieure du côté entrée de gaz aménagée sur la surface la plus extérieure de la cloison de séparation, qui est formée de façon continue à partir de la face terminale du côté entrée de gaz, et qui contient du Rh; et une couche de catalyseur supérieure du côté sortie de gaz aménagée sur la surface la plus extérieure de la cloison de séparation, qui est formée de façon continue à partir de la face terminale du côté sortie de gaz, et qui contient du Rh. La couche de catalyseur supérieure du côté entrée de gaz et la couche de catalyseur supérieure du côté sortie de gaz sont disposées de manière à être éloignées l'une de l'autre le long de la direction des canaux d'écoulement de gaz. La longueur de la couche de catalyseur inférieure le long de la direction des canaux d'écoulement de gaz est de 15 mm ou plus. Le pourcentage de sa longueur par rapport à la longueur totale de chacun des canaux d'écoulement de gaz est de 18 % ou plus et inférieur à 100 %.
(JA) ガス流入側端面からガス流出側端面に沿って延在して設けられるとともに、ガス流入側端面からガス流出側端面まで貫通する複数のガス流路を区画形成する隔壁を有する耐火性三次元構造体と、隔壁上にガス流入側端面から連続して形成された、Pdを含む下触媒層と、隔壁上の最表面に位置し、ガス流入側端面から連続して形成された、Rhを含むガス流入側上触媒層と、隔壁上の最表面に位置し、ガス流出側端面から連続して形成された、Rhを含むガス流出側上触媒層とを有し、ガス流入側上触媒層及びガス流出側上触媒層は、ガス流路方向に沿って互いに離間するように配置されており、ガス流路方向に沿う下触媒層の長さは、15mm以上であり、当該長さの割合は、ガス流路の全長に対して、18%以上100%未満である、リン化合物含有排ガス浄化用触媒。
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