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1. WO2014102586 - EXHAUST GAS CONTROL CATALYST, CATALYST APPARATUS AND EXHAUST GAS CONTROL METHOD

Publication Number WO/2014/102586
Publication Date 03.07.2014
International Application No. PCT/IB2013/002867
International Filing Date 24.12.2013
IPC
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 23/00 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
B01J 23/10 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
10of rare earths
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
CPC
B01D 2255/10
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
10Noble metals or compounds thereof
B01D 2255/2061
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
20Metals or compounds thereof
206Rare earth metals
2061Yttrium
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 2255/2066
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
20Metals or compounds thereof
206Rare earth metals
2066Praseodymium
B01D 2255/2068
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
20Metals or compounds thereof
206Rare earth metals
2068Neodymium
Applicants
  • TOYOTA JIDOSHA KABUSHIKI KAISHA [JP]/[JP] (AllExceptUS)
  • DAIICHI KIGENSO KAGAKU KOGYO CO., LTD. [JP]/[JP] (AllExceptUS)
  • SAKURAI, Kenji [JP]/[JP] (US)
  • NAKAYAMA, Shigeki [JP]/[JP] (US)
  • NISHIOKA, Hiromasa [JP]/[JP] (US)
  • NAKAMURA, Kohki [JP]/[JP] (US)
  • HAYASHIDA, Hiroyuki [JP]/[JP] (US)
  • HIROSE, Yoshikazu [JP]/[JP] (US)
  • YAGISHITA, Sadahiro [JP]/[JP] (US)
Inventors
  • SAKURAI, Kenji
  • NAKAYAMA, Shigeki
  • NISHIOKA, Hiromasa
  • NAKAMURA, Kohki
  • HAYASHIDA, Hiroyuki
  • HIROSE, Yoshikazu
  • YAGISHITA, Sadahiro
Priority Data
2012-28623327.12.2012JP
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) EXHAUST GAS CONTROL CATALYST, CATALYST APPARATUS AND EXHAUST GAS CONTROL METHOD
(FR) CATALYSEUR DE COMMANDE DE GAZ D'ÉCHAPPEMENT, APPAREIL À CATALYSEUR ET PROCÉDÉ DE COMMANDE DE GAZ D'ÉCHAPPEMENT
Abstract
(EN) An exhaust gas control catalyst for lean bum engine of the present invention contains a first metal oxide (Pr2O3, Pr2O4) selected from a group consisting of praseodymium oxide, terbium oxide, and a combination thereof, and a second metal oxide (Nd2O3) selected from a group consisting of lanthanum oxide, neodymium oxide, yttrium oxide and a combination thereof.
(FR) L'invention concerne un catalyseur de commande de gaz d'échappement pour un moteur à mélange pauvre, lequel contient un premier oxyde métallique (Pr2O3, Pr2O4) choisi dans le groupe comprenant de l'oxyde de praséodyme, de l'oxyde de terbium, et une combinaison de ces derniers, et un second oxyde métallique (Nd2O3) choisi dans le groupe comprenant de l'oxyde de lanthane, de l'oxyde de néodyme, de l'oxyde d'yttrium et une combinaison de ces derniers.
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