[go: up one dir, main page]

WO2016148062A1 - Catalyseur d'oxyde composite métallique pour la purifification des gaz d'échappement, et procédé de production de celui-ci - Google Patents

Catalyseur d'oxyde composite métallique pour la purifification des gaz d'échappement, et procédé de production de celui-ci Download PDF

Info

Publication number
WO2016148062A1
WO2016148062A1 PCT/JP2016/057771 JP2016057771W WO2016148062A1 WO 2016148062 A1 WO2016148062 A1 WO 2016148062A1 JP 2016057771 W JP2016057771 W JP 2016057771W WO 2016148062 A1 WO2016148062 A1 WO 2016148062A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
composite oxide
oxide catalyst
metal composite
gas purification
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2016/057771
Other languages
English (en)
Japanese (ja)
Inventor
庸裕 田中
三郎 細川
謙太郎 寺村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyoto University NUC
Original Assignee
Kyoto University NUC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyoto University NUC filed Critical Kyoto University NUC
Priority to JP2017506525A priority Critical patent/JP6785218B2/ja
Publication of WO2016148062A1 publication Critical patent/WO2016148062A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/08—Heat treatment
    • 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

Definitions

  • the present invention relates to a metal composite oxide catalyst for purifying exhaust gas and a method for producing the same, and more particularly to the development of a novel composite oxide catalyst with a reduced precious metal superposition aimed at purifying automobile exhaust gas and a method for producing the same.
  • Non-patent Document 1 precious metal species such as Pd and Rh are mainly used as automobile exhaust gas purification catalysts. It is known that Pd has a high oxidation activity under rich conditions (oxygen-diluted conditions), and Rh exhibits an extremely high NO x reduction activity (Non-patent Document 1). Precious metal species show high activity as an automobile exhaust gas purification catalyst and are indispensable elements for automobiles. However, since these noble metal species are rare elements, there is a problem that price fluctuations are severe. In recent years, research for replacing noble metals has been actively conducted, and it has been clarified that Cu exhibits high activity for NO selective reduction among transition metals (Non-patent Document 2).
  • Non-patent Document 3 it is well known that a Cu 2+ ion exchange ZSM-5 zeolite catalyst is effective in NO x selective reduction reaction using hydrocarbon (HC) as a reducing agent.
  • HC hydrocarbon
  • Non-patent Document 4 This laboratory has also reported that Cu / Al 2 O 3 is most effective as a result of optimization of combinations of various carriers and various active metal components.
  • Cu-based catalysts have a problem that the NO purification efficiency at low temperatures is extremely low and is not suitable for exhaust gas purification in the cold. Therefore, the addition of noble metal species is indispensable for improving the purification efficiency at low temperatures.
  • the main object of the present invention is to realize removal of precious metal or reduction of precious metal by developing a novel catalyst with a reduced amount of precious metal used.
  • the present invention provides the following metal complex oxide catalyst for exhaust gas purification and a method for producing the same.
  • Item 1. Formula (I) M 1 / M 2 Fe x Mn 1-x O 3 (I) (Wherein M 1 represents a noble metal selected from the group consisting of Pd, Rh and Pt. M 2 represents a rare earth element selected from the group consisting of Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Y. X is 0.2 to 1.0, M 2 Fe x Mn 1-x O 3 represents a metal composite oxide support, and M 1 is supported on the support.
  • M 1 is Pd, the exhaust gas purifying metal composite oxide catalyst according to claim 1.
  • M 2 is Yb, the exhaust gas purifying metal composite oxide catalyst according to claim 1 or 2.
  • Item 4. The metal composite oxide catalyst for exhaust gas purification according to any one of Items 1 to 3, wherein x is 0.4 to 0.8.
  • Item 5. The exhaust gas purifying metal composite oxide catalyst according to Item 4, wherein x is 0.6 to 0.8.
  • the noble metal M 1 is M 2 Fe x Mn 1-x O 3 (M 2 represents a rare earth element selected from the group consisting of Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y. x is 0.2 to 0.2).
  • the metal composite oxide catalyst for purifying exhaust gas according to any one of Items 1 to 5, which is contained in an amount of 0.01 to 2% by mass with respect to the carrier represented by 1.0.
  • the noble metal M 1 is M 2 Fe x Mn 1-x O 3 (M 2 represents a rare earth element selected from the group consisting of Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y. x is 0.2 to 0.2).
  • Item 10 The metal complex oxide catalyst for exhaust gas purification according to Item 6, which is contained by 0.1 to 1.0% by mass with respect to the complex oxide represented by 1.0).
  • M 1 is Pd
  • M 2 is Yb
  • Item 10. The metal complex oxide catalyst for purifying exhaust gas according to any one of Items 1 to 9, wherein the metal complex oxide support is synthesized by a solvothermal method. Item 11.
  • a rare earth element compound, Fe compound, or Mn compound selected from the group consisting of Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y is dissolved or suspended in a solvent and heated to the following formula (II) M 2 Fe x Mn 1-x O 3 (II) (In the formula, M 2 represents a rare earth element selected from the group consisting of Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y. x is 0.2 to 1.0.) And a step of contacting the obtained carrier with a Pd compound, Rh compound or Pt compound solution and calcining it.
  • M 1 / M 2 Fe x Mn 1-x O 3 (I) (Wherein M 1 represents a noble metal selected from the group consisting of Pd, Rh and Pt. M 2 represents a rare earth element selected from the group consisting of Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Y. X is 0.2 to 1.0, M 2 Fe x Mn 1-x O 3 represents a metal composite oxide support, and M 1 is supported on the support.
  • the manufacturing method of the metal complex oxide catalyst for exhaust gas purification represented by these. Item 12. Item 12. The method for producing a metal composite oxide catalyst for exhaust gas purification according to Item 11, wherein the solvent is 1,4-butanediol.
  • a noble metal (M 1 ) support selected from the group consisting of Pd, Rh and Pt is used as M 2 Fe x Mn 1-x O 3 (M 2 , x is as defined above).
  • M 1 noble metal
  • the catalyst supporting 0.5% by mass of Pd is CO and propylene oxidized, NOx compared to the Al 2 O 3 supported noble metal catalyst supporting 1.0% by mass of Rh or Pd.
  • the reduction temperature (T50) is low, and the performance is superior to conventional Rh-containing catalysts and Pd-containing catalysts.
  • a noble metal selected from the group consisting of Pd, Rh and Pt is represented by the following formula (II): M 2 Fe x Mn 1-x O 3 (II) (In the formula, M 2 represents a rare earth element selected from the group consisting of Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Y. x is 0.2 to 1.0. M 2 Fe x Mn 1 ⁇ x O 3 represents a metal composite oxide support, and Pd is supported on the support. It is carried on a metal composite oxide carrier represented by
  • the amount of the noble metal M 1 supported is preferably about 0.01 to 2%, more preferably about 0.05 to 2%, still more preferably about 0.1 to 1%, based on the mass of the carrier represented by the formula (II). Preferably, it is about 0.1 to 0.5%.
  • the noble metal M 1 supported on the support includes at least one selected from the group consisting of Pd, Rh and Pt, preferably Pd, Rh or Pt, more preferably Pd, Rh, most preferably Pd. It is.
  • rare earth element represented by M 2 examples include Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y, and one or more of these can be used.
  • Preferred rare earth elements are Er, Tm, Yb, Lu, or Y, more preferably Yb, Lu, and particularly preferably Yb.
  • the crystal structure of the carrier of the present invention includes a hexagonal crystal structure.
  • the carrier represented by the general formula (II) of the present invention can be produced by a solvothermal method (ST method), a complex polymerization method (PC method) or the like, and the ST method is preferred.
  • ST method solvothermal method
  • PC method complex polymerization method
  • the ST method is a method in which a rare earth element (M 2 ) compound, an Fe compound, and optionally a Mn compound are dissolved or suspended in a solvent in a sealed container and heated, and the carrier represented by the formula (II) is: It forms as a precipitate.
  • the solvent one or more of polyhydric alcohols such as 1,4-butanediol, alkylene glycol monoalkyl ethers such as ethylene glycol monomethyl ether, and glycerin can be used.
  • a preferred solvent is 1,4-butanediol.
  • the reaction is preferably carried out in a closed system. The reaction is preferably performed in an atmosphere substituted with an inert gas (such as nitrogen or argon).
  • the reaction temperature is about 50 to 350 ° C, preferably about 100 to 350 ° C.
  • the reaction pressure is about 0.1 to 10 MPa, preferably about 1.0 to 5.0 MPa.
  • the reaction time is about 30 minutes to 24 hours, preferably about 1 to 12 hours.
  • the total amount of the Fe compound and the Mn compound is about 0.5 to 1.5 mol, preferably about 0.8 to 1.2 mol, per 1 mol of the rare earth element (M 2 ) compound.
  • the obtained sample is calcined at 200 to 800 ° C. for 0.2 to 24 hours, whereby the carrier of the formula (II) used in the present invention can be obtained.
  • rare earth element (M 2 ) compound dissolved / suspended in the solvent
  • examples include organic acid salts such as nitrates and acetates, carbonates, halides (fluorides, chlorides, bromides, iodides), and coordination such as acetylacetone and alkoxides (methoxide, ethoxide, tert-butoxide, etc.)
  • a complex compound coordinated with a child, an organic acid salt such as acetate, and a carbonate can be preferably used.
  • Rare earth element (M 2) compounds can be used alone or in combination of two or more.
  • Fe compounds include complex compounds in which ligands such as acetylacetone and alkoxide (methoxide, ethoxide, tert-butoxide, etc.) are coordinated to Fe ions (divalent or trivalent), and organic acid salts such as nitrates and acetates. , Carbonate, halide (fluoride, chloride, bromide, iodide) Organic acid salts such as salts can be preferably used. Fe compounds can be used alone or in combination of two or more.
  • Mn compounds include complex compounds in which ligands such as acetylacetone and alkoxide (methoxide, ethoxide, tert-butoxide, etc.) are coordinated to Mn ions (divalent or trivalent), and organic acid salts such as nitrates and acetates. , Carbonates, halides (fluorides, chlorides, bromides, iodides), etc., and complex compounds coordinated by ligands such as acetylacetone and alkoxides (methoxide, ethoxide, tert-butoxide, etc.), acetic acid Organic acid salts such as salts can be preferably used. Mn compounds can be used alone or in combination of two or more.
  • an Fe compound, and if necessary, a Mn compound is further dissolved in an aqueous solution in which citric acid is dissolved, and the rare earth element (M 2 ) compound (for example, a rare earth element carbonate) is added to the mixture at 60 to 90 ° C.
  • the rare earth element (M 2 ) compound for example, a rare earth element carbonate
  • the precursor product of the carrier of the formula (II) can be obtained by calcination at 200 to 500 ° C. for 2 to 6 hours.
  • the total amount of the Fe compound and the Mn compound is about 0.5 to 1.5 mol, preferably about 0.8 to 1.2 mol, per 1 mol of the rare earth element (M 2 ) compound.
  • the carrier of the formula (II) used in the present invention can be obtained by baking at 700 to 900 ° C. for 0.2 to 5 hours.
  • the PC method can be performed in an open system.
  • the catalyst of the present invention is contacted by impregnating or immersing a carrier represented by the formula (II) in a solution containing a noble metal compound, or by applying a solution containing the noble metal compound to the carrier by spraying, and then calcining.
  • a carrier represented by the formula (II) or by applying a solution containing the noble metal compound to the carrier by spraying, and then calcining.
  • noble metal compounds platinum compounds such as hexachloroplatinic acid, tetrachloroplatinic acid, potassium tetrachloroplatinate, sodium tetrachloroplatinate, platinum chloride, dinitrodiamineplatinum; palladium chloride, palladium nitrate, palladium sulfate, palladium acetate, etc.
  • Palladium compounds such as rhodium chloride, rhodium sulfate, rhodium nitrate, rhodium hydroxide and acetylacetonatodium.
  • the firing temperature is about 400 to 1000 ° C., preferably about 450 to 600 ° C.
  • the firing time is about 10 minutes to 8 hours, preferably about 30 minutes to 2 hours. Firing can be performed under air flow.
  • the calcined catalyst may be used as it is as an exhaust gas purification catalyst, but a hydrogen reduction treatment may be further performed after the calcining.
  • the hydrogen reduction treatment can be performed by heating in the presence of hydrogen.
  • the temperature of the hydrogen reduction treatment is about 150 to 850 ° C., more preferably about 500 to 800 ° C., and the treatment time is about 30 minutes to 12 hours, preferably about 1 to 6 hours.
  • the catalyst of the present invention can treat NOx at a low temperature, it is particularly excellent as a three-way catalyst for automobile exhaust gas purification.
  • This suspension was transferred to an autoclave reaction tube, charged into an autoclave (300 mL), and 30 ml of 1,4-BG was added to the gap. After the atmosphere in the autoclave was replaced with nitrogen, the temperature was raised from room temperature to 315 ° C at 2.3 ° C / min and reacted for 2 hours. The product was washed with methanol and air-dried to obtain hexagonal YbFe 0.6 Mn 0.4 O 3 . This was calcined in air at 500 ° C for 30 min to obtain a catalyst and catalyst support.
  • Hexagonal YbFeO 3 containing no Mn was synthesized in the same manner as described above, with Fe (acac) 3 of 15 mmol (Mn (acac) 3 of 0 mmol).
  • Production Example 2 Preparation of carrier by complex polymerization method (PC method) Ytterbium carbonate n-hydrate (Yb 2 (CO 3 ) 3 ⁇ nH 2 O, 5 mmol), iron nitrate nonahydrate (Fe (NO 3 )) 3 ⁇ 9H 2 O, 6 mmol) and manganese nitrate hexahydrate (Mn (NO 3 ) 2 ⁇ 6H 2 O, 4 mmol) were dissolved in ion-exchanged water (180 ml) containing 400 mmol of citric acid. The total amount of Fe (NO 3 ) 3 ⁇ 9H 2 O and Mn (NO 3 ) 2 ⁇ 6H 2 O was 10 mmol.
  • PC method complex polymerization method
  • This solution was stirred at 80 ° C. for 2 h, ethylene glycol (400 mmol) was added, and the mixture was stirred at 130 ° C. for 5 h to obtain a gel product.
  • This gel product was calcined at 350 ° C. for 4-5 h to obtain a powder, and further calcined at 800 ° C. for 30 min to obtain hexagonal YbFe 0.6 Mn 0.4 O 3 .
  • Example 1 and Comparative Example 1 Preparation of hexagonal YbFe 0.6 Mn 0.4 O 3 supported Pd catalyst and ⁇ -Al 2 O 3 supported noble metal catalyst by impregnation method Hexagonal YbFe 0.6 Mn 0.4 O 3 supported Pd catalyst was produced in Production Example 1. Or palladium (II) acetate (Pd (OAc) 2 , 0.0021-0.0211 g) so that Pd (metal) is 0.1-1.0wt% with respect to hexagonal YbFe 0.6 Mn 0.4 O 3 (0.99 g) prepared in 2 . was impregnated and supported at room temperature, dried, and fired in air at 500 ° C for 30 min. In addition, 9 ml of acetone was used as a solvent.
  • ⁇ -Al 2 O 3 supported noble metal catalyst is precious metal (Pd, Rh, Pt) against ⁇ -Al 2 O 3 (reference catalyst ALO-7 (180 m 2 / g), provided by the Catalysis Society of Japan, 1.00 g) Palladium (II) acetate (Pd (OAc) 2 , 0.0211 g), dinitrodiamine platinum aqueous solution (4.64 wt% Pt (NO 2 ) 2 (NH 3 ) 2 aq., 0.2154 g) or Trisacetylacetonatodium (III) (Rh (acac) 3 , 0.0389 g) was added to various solvents, impregnated and supported, dried, and calcined in air at 500 ° C for 3 hours. In addition, 9 ml of acetone was used as a solvent for carrying Pd, and 9 ml of water was used for carrying Pt. For loading Rh, 9 ml of ethyl acetate was used.
  • Test Example 1 Catalytic Reaction The reaction was carried out using an atmospheric pressure fixed bed flow type reactor schematically shown in FIG. A catalyst (200 mg) was packed in a quartz reaction tube, and as a pretreatment, He was circulated at 30 mL min -1 at 500 ° C for 1 h.
  • a reaction gas a mixed gas of NO: 1000 ppm, CO: 1000 ppm, C 3 H 6 : 250 ppm, O 2 : 1125 ppm, He: balance was circulated through the catalyst layer at 100 mL min ⁇ 1 .
  • the outlet gas analysis was performed from 100 ° C to 500 ° C and held for 20 min every 50 ° C before the outlet gas analysis was performed.
  • the analysis of the reaction gas was performed with two TCD-GC8A (MS-5A and Porapak Q manufactured by Shimadzu) and a NOx meter (PG-350 manufactured by Horiba).
  • C 3 H 6 , CO, CO 2 , N 2 and N 2 O were measured with two TCD-GC8A (MS-5A and Porapak Q), and NO and NO 2 were measured with a NOx meter.
  • Figure 1 shows the amount of CO 2 produced from CO and C 3 H 6 and NO x from hexagonal YbFe 0.6 Mn 0.4 O 3 supported Pd catalyst and Al 2 O 3 supported noble metal (Rh, Pd, Pt) catalyst. N 2 production amount is shown. Tables 1 and 2 show T50 (temperature at 50% oxidation / reduction) of oxidation and NO reduction of C 3 H 6 and CO.
  • the Rh / Al 2 O 3 catalyst showed a stable and high activity in the temperature range above 300 ° C.
  • the NO reduction activity of the Pd / YbFe 0.6 Mn 0.4 O 3 catalyst was higher at lower temperatures than the Rh / Al 2 O 3 catalyst.
  • N 2 O formation may be confirmed in the reaction temperature range of 350 ° C to 500 ° C, but Pd / YbFe 0.6 Mn 0.4 O 3 catalyst has a temperature of 250 ° C or higher.
  • By-products such as N 2 O were not found even in the temperature range, and all NO in the reaction gas was reduced to N 2 .
  • FIG. 2 shows the activity of Pd / YbFe 0.6 Mn 0.4 O 3 catalysts with different Pd loadings.
  • the NO reduction activity is reduced by reducing the loading
  • the NO reduction activity of the 0.5 wt% Pd / YbFe 0.6 Mn 0.4 O 3 catalyst is the same as that of the Rh / Al 2 O 3 catalyst and Pd / Al It was higher than that of 2 O 3 catalyst.
  • the oxidation activity of C 3 H 6 and CO remained high even in the 0.1 wt% Pd / YbFe 0.6 Mn 0.4 O 3 catalyst.
  • FIG. 3 shows the activities of the Pd / YbFe 0.6 Mn 0.4 O 3 and the catalyst without addition of Mn with different preparation methods.
  • the catalyst using sorbothermally synthesized YbFe 0.6 Mn 0.4 O 3 as the support showed higher activity than that synthesized by the complex polymerization method.
  • the catalyst using YbFeO 3 synthesized by solvothermal as the catalyst support remained less active than that of YbFe 0.6 Mn 0.4 O 3 .
  • solvothermally synthesized YbFe 0.6 Mn 0.4 O 3 has a hexagonal plate shape, and that synthesized by complex polymerization has an irregular shape (S Hosokawa, Y. Masuda, T.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Toxicology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Catalysts (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

La présente invention concerne un catalyseur d'oxyde composite métallique pour la purification des gaz d'échappement, qui est représenté par la formule (I). M1/M2FexMn1-xO3 (I) (Dans la formule, M1 représente un métal noble choisi dans le groupe constitué de Pd, Rh et Pt ; M2 représente un élément de terres rares choisi dans le groupe constitué par Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu et Y ; et x représente un nombre compris entre 0,2 et 1,0. A cet égard, M2FexMn1-xO3 représente un support d'oxyde composite métallique, et M1 est supporté par le support.)
PCT/JP2016/057771 2015-03-13 2016-03-11 Catalyseur d'oxyde composite métallique pour la purifification des gaz d'échappement, et procédé de production de celui-ci Ceased WO2016148062A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017506525A JP6785218B2 (ja) 2015-03-13 2016-03-11 排ガス浄化用金属複合酸化物触媒及びその製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-050348 2015-03-13
JP2015050348 2015-03-13

Publications (1)

Publication Number Publication Date
WO2016148062A1 true WO2016148062A1 (fr) 2016-09-22

Family

ID=56920097

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/057771 Ceased WO2016148062A1 (fr) 2015-03-13 2016-03-11 Catalyseur d'oxyde composite métallique pour la purifification des gaz d'échappement, et procédé de production de celui-ci

Country Status (2)

Country Link
JP (1) JP6785218B2 (fr)
WO (1) WO2016148062A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010284584A (ja) * 2009-06-10 2010-12-24 Honda Motor Co Ltd 排ガス浄化用酸化触媒

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010284584A (ja) * 2009-06-10 2010-12-24 Honda Motor Co Ltd 排ガス浄化用酸化触媒

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
RYOHEI TADA ET AL.: "Glycothermal Gosei shita Mn Shushoku Ropposho YbFeO3 no Tankasuiso Nensho Tokusei", DAI 114 KAI SHOKUBAI TORONKAI TORONKAI A YOKOSHU, vol. 114th, 18 September 2014 (2014-09-18), pages 463, ISSN: 1343-9936 *
RYOHEI TADA ET AL.: "Mn Shushoku Ropposho YbFeO3 no Nensho Tokusei Oyobi Sanka Kangen Tokusei", DAI 116 KAI SHOKUBAI TORONKAI TORONKAI A YOKOSHU, vol. 116 th, 9 September 2015 (2015-09-09), pages 382, ISSN: 1343-9936 *
SABURO HOSOKAWA ET AL.: "Mn o Koyo Saseta Ropposho Kidorui -Tetsu Fukugo Sankabutsu no Solvothermal Gosei to sono Nensho Tokusei", DAI 108 KAI SHOKUBAI TORONKAI TORONKAI A YOKOSHU, vol. 108 th, 13 September 2011 (2011-09-13), pages 361, ISSN: 1343-9936 *
SABURO HOSOKAWA ET AL.: "Ropposho YbFeO3 Tanji Mn Shokubai no Tankasuiso Nensho Tokusei", DAI 112 KAI SHOKUBAI TORONKAI TORONKAI A YOKOSHU, vol. 112 th, 11 September 2013 (2013-09-11), pages 353, ISSN: 1343-9936 *
SABURO HOSOKAWA: "Ropposho Kidorui -Tetsu Fukugo Sankabutsu Nano Kessho no Gosei to Tankasuiso Nensho Hanno eno Oyo", CERAMICS, vol. 51, no. 1, 1 January 2016 (2016-01-01), pages 7 - 11, ISSN: 0009-031X *
TAKUYA SHIBANO ET AL.: "Solvothermal Gosei shita Mn Shushoku Ropposho YbFeO3 Shokubai ni yoru NO Sentaku Kangen", DAI 116 KAI SHOKUBAI TORONKAI TORONKAI A YOKOSHU, vol. 116 th, 9 September 2015 (2015-09-09), pages 371, ISSN: 1343-9936 *

Also Published As

Publication number Publication date
JP6785218B2 (ja) 2020-11-18
JPWO2016148062A1 (ja) 2018-02-01

Similar Documents

Publication Publication Date Title
EP3092072B1 (fr) Procédé de carbonylation en phase vapeur de méthanol en formiate de méthyle
CN105013508B (zh) 用于氯代挥发性有机物低温催化燃烧的催化剂及制备方法
CN103252241B (zh) 一种二氧化碳加氢合成甲醇催化剂及制备方法和应用
JP2016159209A (ja) アンモニア分解触媒及び該触媒の製造方法並びに該触媒を用いたアンモニアの分解方法
JP5010547B2 (ja) 高活性触媒およびその製造方法
CN102258998B (zh) 一种氨合成催化剂及其制备方法
JPWO2014045570A1 (ja) ＰｄＲｕ固溶体型合金微粒子を用いた触媒
CN104275180B (zh) 一种高选择性含氧煤层气催化脱氧催化剂及其制备方法
CN104383925B (zh) 丙烷催化燃烧消除的催化剂及制备方法和应用
CN111013597A (zh) 一种以Ce-MOF为前驱体的铈基复合氧化物低温SCR催化剂制备方法
CN104437640A (zh) 一种Pd/MIL-53(Al)催化剂及其制备和应用
JP2003320254A (ja) 水性ガスシフト反応及びメタノール水蒸気改質反応用触媒
CN101786024A (zh) 一种高水热稳定性氧化铝载体及其制备方法
CN113797935B (zh) 一种用于低温高效处理VOCs的催化剂及其制备方法
CN108187691A (zh) 一种用于co气相偶联合成草酸酯的填充复合结构催化剂的制备方法及其应用
CN107442117B (zh) 一种尾气净化用催化剂
JP6927590B2 (ja) 排ガス浄化用高耐熱性複合酸化物触媒及びその製造方法
JP6272609B2 (ja) 複合酸化物の製造方法及び複合酸化物触媒
CN113908833B (zh) 一种逆水煤气变换催化剂及其制备方法和应用
JP5825221B2 (ja) 排気ガス浄化用触媒およびその製造方法
CN116273055B (zh) 一种镍基双金属催化剂及其制备方法和应用
JP6785218B2 (ja) 排ガス浄化用金属複合酸化物触媒及びその製造方法
CN105148912A (zh) 一种合成气一步法制取二甲醚催化剂的制备方法
CN108671911A (zh) 一种用于合成亚硝酸酯的催化剂及其制备方法
KR101625464B1 (ko) 일산화탄소의 제거를 위한 구리망간산화물이 담지된 메조포러스 실리카 촉매의 제조방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16764892

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2017506525

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16764892

Country of ref document: EP

Kind code of ref document: A1