WO2009057961A2 - Catalyseur de traitement des gaz d'échappement de véhicules diesel lng mixtes - Google Patents

Catalyseur de traitement des gaz d'échappement de véhicules diesel lng mixtes Download PDF

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Publication number
WO2009057961A2
WO2009057961A2 PCT/KR2008/006410 KR2008006410W WO2009057961A2 WO 2009057961 A2 WO2009057961 A2 WO 2009057961A2 KR 2008006410 W KR2008006410 W KR 2008006410W WO 2009057961 A2 WO2009057961 A2 WO 2009057961A2
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WIPO (PCT)
Prior art keywords
catalyst
platinum
palladium
exhaust gas
dual fuel
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Ceased
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PCT/KR2008/006410
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English (en)
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WO2009057961A3 (fr
Inventor
Seongho Lee
Hong-Seok Jung
Yong-Woo Kim
Seung-Hoon Oh
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SK Energy Co Ltd
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SK Energy Co Ltd
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Priority to CN200880114450A priority Critical patent/CN101842155A/zh
Publication of WO2009057961A2 publication Critical patent/WO2009057961A2/fr
Publication of WO2009057961A3 publication Critical patent/WO2009057961A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/44—Palladium
    • 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
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/42—Platinum
    • 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
    • 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
    • B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
    • 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
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
    • 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
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0201—Impregnation
    • B01J37/0205—Impregnation in several steps
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1021—Platinum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1023—Palladium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/702—Hydrocarbons
    • B01D2257/7022—Aliphatic hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/018—Natural gas engines
    • 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
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group metals
    • B01J23/63—Platinum group metals with rare earths or actinides
    • 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
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/024—Multiple impregnation or coating
    • B01J37/0242—Coating followed by impregnation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to a catalyst for treating exhaust gas of diesel LNG dual fuel vehicles, and more particularly, to a catalyst of diesel LNG dual fuel vehicles, which can efficiently remove methane contained in the exhaust gas of diesel LNG dual fuel vehicles and also has excellent resistance to sulfur poisoning.
  • a natural gas vehicle can be classified into a CNG type and an LNG type according to a fuel supply system.
  • the CNG type uses gas compressed at a pressure of about 200 atmospheres and stored in a high-pressure vessel
  • the LNG type uses cryogenic fuel having a temperature of approximately -130 ° C . It seems that the reason why CNG is mainly used as the natural gas fuel at home and abroad is that it is difficult to apply LNG to vehicles compared with CNG and there is insufficient infrastructure for supplying LNG.
  • the CNG vehicle is well received in the market and is in a matured stage, but the LNG vehicle is just passed a developing stage and now in a test driving stage.
  • a natural gas engine can be classified into a dedicated type and a dual fuel type according to an ignition system.
  • the dedicated type employs an electrical ignition system and is mainly used in a gasoline engine
  • the dual fuel type uses diesel fuel as an ignition source.
  • an existing gasoline vehicle is remodeled into the natural gas vehicle, if the dual fuel type is applied, it can achieve fuel conversion comparatively simply by installing only a natural gas supply system without changing an ignition system.
  • methane is a main ingredient in the exhaust gas.
  • the methane is a potential greenhouse gas having a long life span and shows a higher greenhouse effect than carbon dioxide. Due to environmental impact of the methane exhausted from the natural gas vehicle, it is expected that the emission regulation will be proposed sooner or later, and about 60% of the methane which is exhausted in the existing state of the natural gas vehicle should be treated by a low temperature post-treating apparatus and the like in order to conform with the strongest European regulation.
  • the inventors had found that the sulfur poisoning phenomenon can be controlled by impregnating platinum as well as palladium in a catalyst while a weight ratio of platinum and palladium is adjusted.
  • the diesel fuel is controlled to contain sulfur of 50ppm or less in Korea. Therefore, a sulfur concentration in the exhaust gas of the diesel LNG dual fuel vehicle is in an extent of lOppm or less, 0.1 ⁇ lOppm, more detailedly, 0.1 ⁇ 5ppm, although it depends on a mixed fuel burning ratio.
  • a impregnating ratio of palladium and platinum had been adjusted to have excellent methane oxidation activity in the exhaust gas condition of the diesel LNG dual fuel vehicle. As a result, the inventors had found that, when the weight ratio of palladium and platinum is 1:0.1 ⁇ 0.5, it has high methane oxidation activity and excellent resistance to sulfur poisoning .
  • the present invention relates to a catalyst for treating exhaust gas of diesel LNG dual fuel vehicles, in which palladium and platinum as catalyst active ingredients are impregnated in the weight ratio of 1:0.1 ⁇ 0.5, and more preferably, the catalyst for treating exhaust gas of diesel LNG dual fuel vehicles has a ceramic substrate on which a support that is treated by acidification, and palladium and platinum, as catalyst active ingredients, having the weight ratio of 1:0.1 ⁇ 0.5 are deposited.
  • the weight ratio of palladium and platinum is 1:0.1 ⁇ 0.5, more preferably, 1:0.1 ⁇ 0.3.
  • the palladium has more excellent catalytic activity than the platinum, but it is easily poisoned by sulfur, so that the catalytic activity is deteriorated. Therefore, besides palladium, it is necessary to provide a cocatalyst for the sulfur poisoning prevention effect.
  • the platinum has excellent effect as the cocatalyst having the sulfur poisoning prevention effect while maintaining the methane oxidation activity, but it has lower methane oxidation activity compared with the palladium.
  • the ratio of platinum and palladium is important to provide the sulfur poisoning prevention effect and the excellent methane oxidation activity.
  • the inventors had found that, when the weight ratio of palladium and platinum is 1:0.1 ⁇ 0.5, more preferably, 1:0.1 ⁇ 0.3, it has the sulfur poisoning prevention effect and the excellent methane oxidation activity. If the weight ratio of the platinum with respect to the palladium is less than 0.1, the sulfur poisoning prevention effect is remarkably deteriorated, and if the weight ratio of the platinum with respect to the palladium is larger than 0.5, the methane oxidation activity is lowered. Therefore, only when the weight ratio of palladium and platinum is controlled within the above-mentioned extent, it can have the sulfur poisoning prevention effect and the excellent methane oxidation activity in the diesel LNG dual fuel vehicles.
  • the catalyst for treating exhaust gas of diesel LNG dual fuel vehicles has a ceramic substrate on which the support, and palladium and platinum as catalyst active ingredients are deposited.
  • the ceramic substrate may have a honeycomb monolith structure formed of a heat-resistant ceramic material like cordierite.
  • the support may include alumina, zirconia, silica, ceria and a mixture thereof, but the alumina is more preferable in the aspect of catalytic activity.
  • the support may be treated with acid like sulfuric acid.
  • an amount of the support washcoated on the ceramic substrate is 0.5 ⁇ 4g/in 3 . If the amount of the support is less than 0.5g/in 3 , catalyst performance is significantly deteriorated, and if the amount of the support is larger than 4g/in 3 , the catalyst performance is enhanced any more and also it is not facile to manufacture it.
  • a content of the catalytic active material impregnated in the catalyst is in an extent of 0.1 ⁇ 20 weight%, preferably, 1 - 15 weight% with respect to total weight of the support and the catalytic active material. If the content is less than 0.1 weight%, catalyst performance is significantly deteriorated, and if the content is larger than 20 weight%, the catalyst performance is enhanced any more and it is disadvantage in the economical point of view .
  • the catalytic active material may be impregnated in the wash-coated substrate.
  • the support impregnating the catalytic active material may be wash- coated on the substrate.
  • the catalyst for treating exhaust gas of diesel LNG dual fuel vehicles can be manufactured by a method comprising the steps of: preparing a wash-coated substrate by wash-coating alumina on a ceramic substrate and then drying and calcining the wash- coated ceramic substrate; and impregnating catalyst active ingredients by immerging the wash-coated substrate in a catalytic solution containing palladium and platinum and then drying and calcining the wash- coated ceramic substrate.
  • the palladium precursor used for preparing the catalytic solution includes palladium nitrate, palladium chloride, tetraamminepalladium chloride, and the like.
  • the platinum precursor includes tetraammineplatinum nitrate (Pt (NH 3 ) 4 (NO 3 ) 2 ) and hexachloroplatinic acid (H 2 PtCl 6 ) and the like, but H 2 PtCl 6 is further advantage in the point of the catalytic activity compared with Pt (NH 3 ) 4 (NO 3 ) 2 .
  • the wash-coating of the support on the substrate, and the drying and calcining can be performed by typical methods in the art .
  • the catalyst for treating exhaust gas of diesel LNG dual fuel vehicles according to the present invention has the excellent methane oxidation activity and the excellent resistance to sulfur poisoning.
  • Fig. 1 is a graph showing an evaluation result of activity of a methane oxidation catalyst impregnating palladium and platinum as catalyst active ingredients.
  • Fig. 2 is a graph showing an evaluation result of resistance of the catalyst with respect to sulfur.
  • Gamma alumina powder (SASOL, German, surface area: 210m 2 /gr, pore volume: 0.5cc/gr, specific gravity: 0.8g/cc) is mixed with a mixed solution of acetic acid and distilled water (weight ratio of 1:3.5), and then uniform alumina slurry is prepared by grinding it using a wet ball mill for 12hours.
  • a content of the gamma alumina powder in the slurry is 50 weight%, and an average particle size of the ground gamma alumina powder is 3Pn.
  • Cordierite honeycomb monolith (lin 3 , 400 cpsi) is wash- coated with the alumina slurry so that an amount of the alumina washcoated is 2g/in 3 , dried for 2 hours at a temperature of 120 ° C and then calcined for three hours at a temperature of 550 ° C, thereby manufacturing the honeycomb monolith washcoated with alumina.
  • Catalytic solutions of 8Og are respectively prepared by dissolving Pd(NO 3 J 2 aqueous solution (10 weight%) as the palladium precursor and H 2 PtCl 6 as the platinum precursor in distilled water so as to have each content as indicated in Table 1. And, the honeycomb monolith washcoated with alumina is immerged in each catalytic solution for 1 minute and then treated by air-blowing so as to remove residual solution. Then, the honeycomb monolith is dried for 2 hours at a temperature of 120 "C under atmospheric pressure and then calcined for four hours at a temperature of 600 ° C, thereby manufacturing a catalyst impregnating palladium (Pd) and platinum (Pt) .
  • a catalyst is manufactured in the same way as the embodiment 7 except that Pt (NH 3 ) 4 (NO 3 ) 2 is used as the platinum precursor.
  • a A content of a catalytic ingredient in a catalytic solution [Test example 1] Evaluation of catalytic activity
  • the honeycomb monolith catalysts manufactured in the embodiments 1 to 4 are fixed in a catalyst reactor, and then a methane (CH 4 ) oxidation experiment is performed.
  • Model gases having compositions as indicated in Table 2 are mixed in a controlled flow rate using MFC (mass flow controller) and then injected into the catalyst reactor.
  • the flow rate of the model gases is 13.6 1/rain and a space velocity is GHSV 50,00OtIr "1 .
  • thermocouple is provided at internal upper and lower sides of the catalyst reactor so as to control and measure a temperature, and a reaction temperature is in an extent of 150 ⁇ 600 ° C, and a temperature is increased in stages at a heating rate of 5 ° C/min, and then the catalytic activity is checked.
  • concentration of NO, CO, CH 4 reaction gases after/before the reaction is detected through a gas analyzer.
  • Fig. 1 is a graph showing an evaluation result of activity of a methane oxidation catalyst impregnating palladium and platinum as catalyst active ingredients.
  • the catalyst in the embodiment 4 in which a weight ratio of palladium and platinum is 1:0.2 has the most excellent catalytic activity.
  • the catalyst for treating exhaust gas of diesel LNG dual fuel vehicles according to the present invention has the excellent methane oxidation activity and the excellent resistance to sulfur poisoning.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Toxicology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Catalysts (AREA)

Abstract

La présente invention concerne un catalyseur de traitement des gaz d'échappement de véhicules diesel LNG mixtes, comprenant du palladium et du platine utilisés comme ingrédients actifs. Le catalyseur de traitement des gaz d'échappement de véhicules diesel LNG mixtes présente une excellente activité d'oxydation du méthane et un excellent effet de prévention contre l'empoisonnement au soufre.
PCT/KR2008/006410 2007-10-31 2008-10-30 Catalyseur de traitement des gaz d'échappement de véhicules diesel lng mixtes Ceased WO2009057961A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200880114450A CN101842155A (zh) 2007-10-31 2008-10-30 用于处理柴油lng双燃料机动车的废气的催化剂

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2007-0110162 2007-10-31
KR1020070110162A KR100888018B1 (ko) 2007-10-31 2007-10-31 디젤 ｌｎｇ 혼소 차량 배기가스 정화용 촉매

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WO2009057961A2 true WO2009057961A2 (fr) 2009-05-07
WO2009057961A3 WO2009057961A3 (fr) 2009-08-06

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KR (1) KR100888018B1 (fr)
CN (1) CN101842155A (fr)
MY (1) MY157530A (fr)
WO (1) WO2009057961A2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016215091A (ja) * 2015-05-15 2016-12-22 株式会社 Ａｃｒ 二元燃料酸化触媒、二元燃料ｓｃｒ排ガス処理機構、二元燃料ディーゼル内燃機関、および、その制御方法
WO2018041630A1 (fr) 2016-08-31 2018-03-08 Shell Internationale Research Maatschappij B.V. Catalyseur d'oxydation du méthane, procédé de préparation associé et procédé d'utilisation associé
WO2018041632A1 (fr) 2016-08-31 2018-03-08 Shell Internationale Research Maatschappij B.V. Catalyseur d'oxydation du méthane, son procédé de préparation et son procédé d'utilisation
US10112178B2 (en) 2015-03-05 2018-10-30 Shell Oil Company Methane oxidation catalyst, process to prepare the same and method of using the same
CN113042038A (zh) * 2021-03-24 2021-06-29 中国科学院生态环境研究中心 一种钯铂催化剂、其制备方法及应用
WO2023174986A1 (fr) * 2022-03-17 2023-09-21 Shell Internationale Research Maatschappij B.V. Système de moteur à deux combustibles
US12486792B2 (en) 2019-08-20 2025-12-02 Shell Usa, Inc. Methane oxidation catalyst and a method of making and using thereof

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Publication number Priority date Publication date Assignee Title
US9463428B2 (en) 2011-12-21 2016-10-11 3M Innovative Properties Company Palladium-based catalyst and support systems

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ATE190240T1 (de) * 1991-11-26 2000-03-15 Engelhard Corp Oxidationskatalysator und verfahren zur anwendung
JP3291086B2 (ja) * 1993-09-24 2002-06-10 トヨタ自動車株式会社 排ガス浄化用触媒及び排ガス浄化方法
JP3335755B2 (ja) * 1994-03-16 2002-10-21 トヨタ自動車株式会社 排気ガス浄化用触媒
JP3556695B2 (ja) * 1994-03-23 2004-08-18 バブコック日立株式会社 排ガス浄化用触媒

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10112178B2 (en) 2015-03-05 2018-10-30 Shell Oil Company Methane oxidation catalyst, process to prepare the same and method of using the same
US10512896B2 (en) 2015-03-05 2019-12-24 Shell Oil Company Methane oxidation catalyst, process to prepare the same and method of using the same
JP2016215091A (ja) * 2015-05-15 2016-12-22 株式会社 Ａｃｒ 二元燃料酸化触媒、二元燃料ｓｃｒ排ガス処理機構、二元燃料ディーゼル内燃機関、および、その制御方法
WO2018041630A1 (fr) 2016-08-31 2018-03-08 Shell Internationale Research Maatschappij B.V. Catalyseur d'oxydation du méthane, procédé de préparation associé et procédé d'utilisation associé
WO2018041632A1 (fr) 2016-08-31 2018-03-08 Shell Internationale Research Maatschappij B.V. Catalyseur d'oxydation du méthane, son procédé de préparation et son procédé d'utilisation
US11173473B2 (en) 2016-08-31 2021-11-16 Shell Oil Company Methane oxidation catalyst, process to prepare the same and method of using the same
US11219889B2 (en) 2016-08-31 2022-01-11 Shell Oil Company Methane oxidation catalyst, process to prepare the same and method of using the same
US12486792B2 (en) 2019-08-20 2025-12-02 Shell Usa, Inc. Methane oxidation catalyst and a method of making and using thereof
CN113042038A (zh) * 2021-03-24 2021-06-29 中国科学院生态环境研究中心 一种钯铂催化剂、其制备方法及应用
WO2023174986A1 (fr) * 2022-03-17 2023-09-21 Shell Internationale Research Maatschappij B.V. Système de moteur à deux combustibles

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KR100888018B1 (ko) 2009-03-09
MY157530A (en) 2016-06-15
CN101842155A (zh) 2010-09-22
WO2009057961A3 (fr) 2009-08-06

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