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1. WO2017200013 - EXHAUST GAS PURIFYING CATALYST FOR 2-STROKE GENERAL-PURPOSE ENGINES

Publication Number WO/2017/200013
Publication Date 23.11.2017
International Application No. PCT/JP2017/018561
International Filing Date 17.05.2017
IPC
B01J 23/63 2006.01
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
B01D 53/94 2006.01
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 23/58 2006.01
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
58with alkali- or alkaline earth metals or beryllium
F01N 3/10 2006.01
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 2006.01
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 2255/2042
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 2255/2092
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
20Metals or compounds thereof
209Other metals
2092Aluminium
B01D 53/8643
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, aerosols,
34Chemical or biological purification of waste gases
74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
86Catalytic processes
8643Removing mixtures of carbon monoxide or hydrocarbons and nitrogen oxides
Applicants
  • 株式会社キャタラー CATALER CORPORATION [JP]/[JP]
Inventors
  • 篠 頼継 SHINO, Yoritsugu
  • 伊藤 毅 ITO, Tsuyoshi
  • 村重 圭亮 MURASHIGE, Keisuke
  • 久保田 晃夫 KUBOTA, Akio
Agents
  • 青木 篤 AOKI, Atsushi
  • 石田 敬 ISHIDA, Takashi
  • 古賀 哲次 KOGA, Tetsuji
  • 関根 宣夫 SEKINE, Nobuo
Priority Data
2016-10176820.05.2016JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) EXHAUST GAS PURIFYING CATALYST FOR 2-STROKE GENERAL-PURPOSE ENGINES
(FR) CATALYSEUR DE PURIFICATION DE GAZ D’ÉCHAPPEMENT POUR MOTEURS À USAGE GÉNÉRAL À 2 TEMPS
(JA) 2ストローク汎用エンジン用排ガス浄化触媒
Abstract
(EN)
An exhaust gas purifying catalyst for 2-stroke general-purpose engines, which is characterized in that: the exhaust gas purifying catalyst comprises a base and a coat layer on the base; the coat layer contains noble metals and metal oxides; the noble metals include palladium and one or more elements selected from among platinum and rhodium; the zirconia content in the coat layer is 0.07 mole or less per 100 g of the metal oxides contained in the coat layer; and the total content of one or more metal oxides selected from among lanthana and alkaline earth metal oxides in the coat layer is 0.05 mole or more per 100 g of the metal oxides contained in the coat layer.
(FR)
L'invention concerne un catalyseur de purification de gaz d'échappement pour moteurs à usage général à 2 temps, qui est caractérisé en ce que : le catalyseur de purification de gaz d'échappement comprend une base et une couche de revêtement sur la base ; la couche de revêtement contient des métaux nobles et des oxydes de métal ; les métaux nobles comprennent du palladium et un ou plusieurs éléments choisis parmi le platine et le rhodium ; la teneur en zircone dans la couche de revêtement est inférieure ou égale à 0,07 mole pour 100 g des oxydes de métal contenus dans la couche de revêtement ; et la teneur totale d'un ou plusieurs oxydes de métal choisis parmi des oxydes de métal alcalino-terreux ou de lanthane dans la couche de revêtement est supérieure ou égale à 0,05 mole pour 100 g des oxydes de métal contenus dans la couche de revêtement.
(JA)
基体と、該基体上のコート層と、を有し、前記コート層が貴金属及び金属酸化物を含み、前記貴金属が、パラジウムと、白金及びロジウムから選択される1種以上と、を含み、前記コート層のジルコニアの含有量が、該コート層に含まれる金属酸化物100g当たり0.07モル以下であり、そして前記コート層のランタナ及びアルカリ土類金属酸化物から選択される1種以上の金属酸化物の合計含有量が、該コート層に含まれる金属酸化物100g当たり0.05モル以上であることを特徴とする、2ストローク汎用エンジン用排ガス浄化触媒。
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