GB2532342B - Catalyst for treating exhaust gas - Google Patents

Catalyst for treating exhaust gas

Info

Publication number
GB2532342B
GB2532342B GB1518175.3A GB201518175A GB2532342B GB 2532342 B GB2532342 B GB 2532342B GB 201518175 A GB201518175 A GB 201518175A GB 2532342 B GB2532342 B GB 2532342B
Authority
GB
United Kingdom
Prior art keywords
catalyst
exhaust gas
treating exhaust
treating
gas
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.)
Active
Application number
GB1518175.3A
Other languages
English (en)
Other versions
GB2532342A (en
GB201518175D0 (en
Inventor
Leonello Casci John
Elaine Collier Jillian
Gaberova Lucia
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.)
Johnson Matthey PLC
Original Assignee
Johnson Matthey PLC
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 Johnson Matthey PLC filed Critical Johnson Matthey PLC
Priority to GB1805773.7A priority Critical patent/GB2558467B/en
Publication of GB201518175D0 publication Critical patent/GB201518175D0/en
Publication of GB2532342A publication Critical patent/GB2532342A/en
Application granted granted Critical
Publication of GB2532342B publication Critical patent/GB2532342B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
    • B01J29/76—Iron group metals or copper
    • B01J29/7615—Zeolite Beta
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8628—Processes characterised by a specific catalyst
    • 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
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • 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
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9422—Processes characterised by a specific catalyst for removing nitrogen oxides by NOx storage or reduction by cyclic switching between lean and rich exhaust gases (LNT, NSC, NSR)
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • B01J29/7049—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing rare earth elements, titanium, zirconium, hafnium, zinc, cadmium, mercury, gallium, indium, thallium, tin or lead
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
    • B01J29/74—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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
    • B01J29/76—Iron group metals or copper
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
    • B01J29/76—Iron group metals or copper
    • B01J29/763—CHA-type, e.g. Chabazite, LZ-218
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • B01J29/78—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/80—Mixtures of different zeolites
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/19—Catalysts containing parts with different compositions
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional [3D] monoliths
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/64—Pore diameter
    • B01J35/657—Pore diameter larger than 1000 nm
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/70—Catalysts, in general, characterised by their form or physical properties characterised by their crystalline properties, e.g. semi-crystalline
    • B01J35/77—Compounds characterised by their crystallite size
    • 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
    • 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
    • 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
    • B01J37/0246—Coatings comprising a zeolite
    • 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
    • B01J37/0248—Coatings comprising impregnated particles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
    • C01B39/02—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
    • C01B39/46—Other types characterised by their X-ray diffraction pattern and their defined composition
    • C01B39/48—Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
    • 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
    • F01N3/18—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 characterised by methods of operation; Control
    • F01N3/20—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 characterised by methods of operation; Control specially adapted for catalytic conversion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20738—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20761—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/50—Zeolites
    • 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
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/60—Synthesis on support
    • B01J2229/62—Synthesis on support in or on other molecular sieves
    • 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
    • B01J2235/00—Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties
    • B01J2235/15—X-ray diffraction
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
    • B01J29/085—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y containing rare earth elements, titanium, zirconium, hafnium, zinc, cadmium, mercury, gallium, indium, thallium, tin or lead
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
    • B01J29/10—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y containing iron group metals, noble metals or copper
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
    • B01J29/16—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Toxicology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Nanotechnology (AREA)
GB1518175.3A 2013-03-15 2014-03-14 Catalyst for treating exhaust gas Active GB2532342B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1805773.7A GB2558467B (en) 2013-03-15 2014-03-14 Catalyst for treating exhaust gas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361792904P 2013-03-15 2013-03-15
PCT/IB2014/059837 WO2014141200A1 (en) 2013-03-15 2014-03-14 Catalyst for treating exhaust gas

Publications (3)

Publication Number Publication Date
GB201518175D0 GB201518175D0 (en) 2015-11-25
GB2532342A GB2532342A (en) 2016-05-18
GB2532342B true GB2532342B (en) 2018-07-18

Family

ID=50478899

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1518175.3A Active GB2532342B (en) 2013-03-15 2014-03-14 Catalyst for treating exhaust gas
GB1805773.7A Active GB2558467B (en) 2013-03-15 2014-03-14 Catalyst for treating exhaust gas

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1805773.7A Active GB2558467B (en) 2013-03-15 2014-03-14 Catalyst for treating exhaust gas

Country Status (10)

Country Link
US (2) US9044744B2 (https=)
EP (1) EP2983819B1 (https=)
JP (3) JP6567431B2 (https=)
KR (2) KR102264058B1 (https=)
CN (2) CN109590018B (https=)
BR (1) BR112015022557B1 (https=)
DE (1) DE102014103626A1 (https=)
GB (2) GB2532342B (https=)
RU (1) RU2675821C2 (https=)
WO (1) WO2014141200A1 (https=)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2513364B (en) * 2013-04-24 2019-06-19 Johnson Matthey Plc Positive ignition engine and exhaust system comprising catalysed zone-coated filter substrate
GB201207313D0 (en) 2012-04-24 2012-06-13 Johnson Matthey Plc Filter substrate comprising three-way catalyst
DK2850294T4 (da) * 2012-04-27 2019-12-16 Umicore Ag & Co Kg Fremgangsmåde og system til rensning af udstødningsgas fra en intern forbrændingsmotor
GB2512648B (en) * 2013-04-05 2018-06-20 Johnson Matthey Plc Filter substrate comprising three-way catalyst
US9517457B2 (en) * 2013-10-30 2016-12-13 Cummins Inc. Aftertreatment systems with reduced N2O generation
EP3878813A1 (en) * 2013-10-31 2021-09-15 Johnson Matthey Public Limited Company Aei zeolite synthesis
CN104801338B (zh) 2013-12-02 2020-07-31 庄信万丰股份有限公司 Aei沸石的合成
WO2015082141A1 (en) * 2013-12-06 2015-06-11 Danmarks Tekniske Universitet Catalyst for ammonia oxidation
JP6318990B2 (ja) * 2014-08-29 2018-05-09 東ソー株式会社 Ａｅｉ型ゼオライトの製造方法
US20160107119A1 (en) * 2014-10-16 2016-04-21 Battelle Memorial Institute CATALYSTS FOR ENHANCED REDUCTION OF NOx GASES AND PROCESSES FOR MAKING AND USING SAME
JP6222036B2 (ja) * 2014-10-17 2017-11-01 マツダ株式会社 排気ガス浄化装置及び浄化方法
CN107106982B (zh) * 2014-11-19 2021-03-02 庄信万丰股份有限公司 组合scr与pna用于低温排放控制
JP6572751B2 (ja) 2014-11-21 2019-09-11 三菱ケミカル株式会社 Ａｅｉ型ゼオライト及びその製造方法と用途
GB2540832B (en) * 2015-02-20 2019-04-17 Johnson Matthey Plc Bi-metal molecular sieve catalysts
KR20170120656A (ko) * 2015-02-27 2017-10-31 바스프 코포레이션 배기 가스 처리 시스템
ES2586770B1 (es) * 2015-04-16 2017-08-14 Consejo Superior De Investigaciones Científicas (Csic) Método de síntesis directa del material cu-silicoaluminato con la estructura zeolítica aei, y sus aplicaciones catalíticas
US10513439B2 (en) * 2015-08-13 2019-12-24 Tosoh Corporation Method for producing AEI zeolite
JP6759833B2 (ja) * 2015-08-19 2020-09-23 東ソー株式会社 Ａｅｉ型ゼオライトの製造方法
GB201517580D0 (en) * 2015-10-06 2015-11-18 Johnson Matthey Plc Exhaust system comprising a passive nox adsorber
EP3368195A1 (en) * 2015-10-29 2018-09-05 Volvo Truck Corporation Reactive filter for motor vehicle
CN105478158B (zh) * 2015-11-06 2017-11-24 中国第一汽车股份有限公司 一种柴油车尾气用复合分子筛催化剂的制备方法
US10112184B2 (en) 2015-11-11 2018-10-30 Johnson Matthey Public Limited Company Aluminosilicate AEI zeolite preparation
CN105289281A (zh) * 2015-11-14 2016-02-03 无锡清杨机械制造有限公司 一种窗式空气净化器
CN105289282A (zh) * 2015-11-14 2016-02-03 无锡清杨机械制造有限公司 一种窗式空气净化器
CN105289284A (zh) * 2015-11-14 2016-02-03 无锡清杨机械制造有限公司 一种防治雾霾的空气净化器
CN105597524A (zh) * 2015-11-14 2016-05-25 无锡清杨机械制造有限公司 一种窗式空气净化器
CN105258185A (zh) * 2015-11-14 2016-01-20 无锡清杨机械制造有限公司 一种带空气净化功能的抽油烟机
CN105214489A (zh) * 2015-11-14 2016-01-06 华玉叶 一种家用煤炉烟气净化方法
CN105381712A (zh) * 2015-11-14 2016-03-09 无锡清杨机械制造有限公司 一种防治雾霾的空调滤清器
JP6977251B2 (ja) * 2015-11-20 2021-12-08 三菱ケミカル株式会社 Ａｅｉ型メタロケイ酸塩、その製造方法、及びそれを用いたプロピレン及び直鎖ブテンの製造方法
MX2018007396A (es) 2015-12-17 2018-08-15 Basf Corp Catalizador para reduccion catalitica selectiva (scr) que comprende un oxido compuesto que contiene v y sb, proceso de preparacion del mismo, y su utilizacion para la eliminacion de oxidos de nitrogeno.
JP6943861B2 (ja) * 2016-02-01 2021-10-06 ユミコア・アクチエンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフトＵｍｉｃｏｒｅ ＡＧ ＆ Ｃｏ．ＫＧ 水熱安定性鉄含有ａｅｉゼオライトｓｃｒ触媒
WO2017134007A1 (en) * 2016-02-01 2017-08-10 Haldor Topsøe A/S Method for the removal of nitrous oxide from off gas in presence of catalyst comprising an fe-aei zeolite material essentially free of alkali metal
DK3411332T3 (da) * 2016-02-01 2021-05-17 Umicore Ag & Co Kg Fremgangsmåde til direkte syntese af jernholdig aei-zeolitkatalysator
CN108472587B (zh) * 2016-02-01 2021-11-09 优美科股份公司及两合公司 通过在包含基本上不含碱金属的fe-aei沸石材料的scr催化剂的存在下进行选择性催化还原从废气中去除氮氧化物的方法
GB2547288B (en) * 2016-02-03 2021-03-17 Johnson Matthey Plc Catalyst for oxidising ammonia
CN105733705A (zh) * 2016-03-09 2016-07-06 李�杰 一种改性燃油添加剂及其制备方法和应用
JP7076435B2 (ja) * 2016-09-30 2022-05-27 ジョンソン、マッセイ、パブリック、リミテッド、カンパニー ＡＥＩ及びＣｕ－ＡＥＩゼオライトの合成
BR112019006393B1 (pt) 2016-09-30 2023-02-07 Johnson Matthey Public Limited Company Zeólito de aluminossilicato, método para produzir um zeólito de aluminossilicato com uma rede aei, catalisador para tratamento de um gás de escape, método para reduzir seletivamente nox, e, artigo catalisador
WO2018064276A1 (en) * 2016-09-30 2018-04-05 Johnson Matthey Public Limited Company Novel synthesis of metal promoted zeolite catalyst
JP6868648B2 (ja) * 2016-10-05 2021-05-12 シェブロン ユー．エス．エー． インコーポレイテッド モレキュラーシーブｓｓｚ−１０７、その合成および使用
CN110392607A (zh) * 2017-03-13 2019-10-29 三菱化学株式会社 过渡金属负载沸石和其制造方法以及氮氧化物净化用催化剂和其使用方法
WO2018210809A1 (en) * 2017-05-15 2018-11-22 Basf Se A process for preparing a zeolitic material having framework type aei
CN107213906A (zh) * 2017-05-23 2017-09-29 河南康宁特环保科技股份有限公司 一种燃气脱硝的小孔径催化剂及制备方法
EP3793727B1 (en) 2018-05-14 2022-06-22 UMICORE AG & Co. KG Stable small-pore zeolites
JP7569304B2 (ja) * 2018-08-31 2024-10-17 ジョンソン、マッセイ、パブリック、リミテッド、カンパニー 選択的触媒還元のための二元金属Ｃｕ／Ｍｎ触媒
CN112955244A (zh) 2018-11-02 2021-06-11 巴斯夫公司 用于贫燃发动机的排放物处理系统
US12053763B2 (en) * 2018-11-06 2024-08-06 Basf Corporation Aluminosilicate zeolite intergrowths
US11278874B2 (en) * 2018-11-30 2022-03-22 Johnson Matthey Public Limited Company Enhanced introduction of extra-framework metal into aluminosilicate zeolites
EP3947284A1 (en) 2019-03-28 2022-02-09 Johnson Matthey Public Limited Company Molecular sieve intergrowths ofcha
CN110026253B (zh) * 2019-04-22 2022-02-01 南京信息工程大学 一种协同脱硝脱二噁英催化剂的再生方法
CN114364447B (zh) * 2019-09-19 2024-08-30 巴斯夫公司 选择性催化还原催化剂组合物、包含其的催化制品和制备催化制品的方法
EP3812034A1 (en) 2019-10-24 2021-04-28 Dinex A/S Durable copper-scr catalyst
KR20220100071A (ko) * 2019-11-25 2022-07-14 바스프 에스이 Aei 골격 유형 및 코팅된 모놀리스 기재를 갖는 희토류 원소-함유 제올라이트 물질
KR20220069375A (ko) * 2020-11-20 2022-05-27 현대자동차주식회사 탄화수소 산화용 제올라이트 촉매 및 이의 제조방법
CN112856407B (zh) * 2021-01-15 2022-03-18 浙江大学 一种贫燃富燃交替式催化燃烧器及运行方法
US11590481B2 (en) * 2021-06-17 2023-02-28 Exxonmobil Technology & Engineering Company Heteroatom-doped zeolites for bifunctional catalytic applications

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008132452A2 (en) * 2007-04-26 2008-11-06 Johnson Matthey Public Limited Company Transition metal/zeolite scr catalysts
WO2010121257A1 (en) * 2009-04-17 2010-10-21 Johnson Matthey Public Limited Company Small pore molecular sieve supported copper catalysts durable against lean/rich aging for the reduction of nitrogen oxides
WO2011064666A2 (en) * 2009-11-30 2011-06-03 Johnson Matthey Public Limited Company Catalysts for treating transient nox emissions
WO2011112949A1 (en) * 2010-03-11 2011-09-15 Johnson Matthey Public Limited Company DISORDERED MOLECULAR SIEVE SUPPORTS FOR THE SELECTIVE CATALYTIC REDUCTION OF NOx
WO2014160292A1 (en) * 2013-03-14 2014-10-02 Basf Corporation Selective catalytic reduction catalyst system

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO300012B1 (no) * 1993-08-17 1997-03-17 Polymers Holding As Mikroporost krystallinsk silikoaluminofosfat, fremgangsmate for fremstilling av dette, samt anvendelse derav
US5580540A (en) 1995-12-01 1996-12-03 Chevron U.S.A. Inc. Zeolite SSZ-44
US5958370A (en) * 1997-12-11 1999-09-28 Chevron U.S.A. Inc. Zeolite SSZ-39
EA010203B1 (ru) 2003-12-23 2008-06-30 Эксонмобил Кемикэл Пейтентс Инк. Содержащее шабазит молекулярное сито, его синтез и его применение при конверсии оксигенатов в олефины
EA011395B1 (ru) * 2003-12-23 2009-02-27 Эксонмобил Кемикэл Пейтентс Инк. Цеолит типа aei, его синтез и его применение при конверсии оксигенатов в олефины
US7528201B2 (en) * 2004-12-22 2009-05-05 Exxonmobil Chemical Patents Inc. Synthesis of silicoaluminophosphate molecular sieves
EP2944377A1 (en) * 2007-03-26 2015-11-18 PQ Corporation Novel microporous crystalline material comprising a molecular sieve or zeolite having an 8-ring pore opening structure and methods of making and using same
EP2082803A1 (en) * 2008-01-25 2009-07-29 Total Petrochemicals Research Feluy Process for obtaining catalyst composites comprising MeAPO and their use in conversion of organics to olefins
US7622417B2 (en) * 2008-03-21 2009-11-24 Exxonmobil Chemical Patents Inc. Synthesis and use of AEI structure-type molecular sieves
GB2464478A (en) * 2008-10-15 2010-04-21 Johnson Matthey Plc Aluminosilicate zeolite catalyst and use thereof in exhaust gas after-treatment
CN102822460B (zh) 2010-03-26 2015-04-29 株式会社科特拉 废气净化系统
US8101146B2 (en) 2011-04-08 2012-01-24 Johnson Matthey Public Limited Company Catalysts for the reduction of ammonia emission from rich-burn exhaust
CN106423258B (zh) 2011-06-05 2019-03-08 庄信万丰股份有限公司 用于处理废气的pgm催化剂
KR20140033465A (ko) * 2011-07-13 2014-03-18 할도르 토프쉐 에이/에스 촉매화 미립자 필터의 코팅 방법 및 미립자 필터
US8789356B2 (en) * 2011-07-28 2014-07-29 Johnson Matthey Public Limited Company Zoned catalytic filters for treatment of exhaust gas
US9670415B2 (en) * 2011-09-06 2017-06-06 Basf Se Synthesis of zeolitic materials using N,N-dimethyl organotemplates
CN102614908A (zh) * 2012-03-16 2012-08-01 北京工业大学 用于氨选择性催化消除NOx的SSZ-13负载Cu-Fe催化剂的制备方法
DK2850294T4 (da) * 2012-04-27 2019-12-16 Umicore Ag & Co Kg Fremgangsmåde og system til rensning af udstødningsgas fra en intern forbrændingsmotor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008132452A2 (en) * 2007-04-26 2008-11-06 Johnson Matthey Public Limited Company Transition metal/zeolite scr catalysts
EP2517778A1 (en) * 2007-04-26 2012-10-31 Johnson Matthey Public Limited Company Transition metal/aei-zeolite scr catalyst
WO2010121257A1 (en) * 2009-04-17 2010-10-21 Johnson Matthey Public Limited Company Small pore molecular sieve supported copper catalysts durable against lean/rich aging for the reduction of nitrogen oxides
WO2011064666A2 (en) * 2009-11-30 2011-06-03 Johnson Matthey Public Limited Company Catalysts for treating transient nox emissions
WO2011112949A1 (en) * 2010-03-11 2011-09-15 Johnson Matthey Public Limited Company DISORDERED MOLECULAR SIEVE SUPPORTS FOR THE SELECTIVE CATALYTIC REDUCTION OF NOx
WO2014160292A1 (en) * 2013-03-14 2014-10-02 Basf Corporation Selective catalytic reduction catalyst system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MANUEL MOLINER, CRISTINA FRANCH, EDUARDO PALOMARES, MARIE GRILL, AVELINO CORMA: "Cu–SSZ-39, an active and hydrothermally stable catalyst for the selective catalytic reduction of NOx", CHEMICAL COMMUNICATIONS, ROYAL SOCIETY OF CHEMISTRY, vol. 48, no. 66, 1 January 2012 (2012-01-01), pages 8264, XP055120043, ISSN: 13597345, DOI: 10.1039/c2cc33992g *

Also Published As

Publication number Publication date
GB2558467B (en) 2019-01-30
US9597671B2 (en) 2017-03-21
DE102014103626A1 (de) 2014-09-18
CN104703694A (zh) 2015-06-10
RU2675821C2 (ru) 2018-12-25
JP2019217500A (ja) 2019-12-26
BR112015022557B1 (pt) 2020-09-29
KR102173965B1 (ko) 2020-11-04
JP2021049525A (ja) 2021-04-01
RU2018143819A3 (https=) 2021-11-16
CN104703694B (zh) 2018-12-21
WO2014141200A1 (en) 2014-09-18
RU2018143819A (ru) 2019-01-29
KR20150132498A (ko) 2015-11-25
JP7108007B2 (ja) 2022-07-27
GB2558467A (en) 2018-07-11
GB201805773D0 (en) 2018-05-23
JP6567431B2 (ja) 2019-08-28
US9044744B2 (en) 2015-06-02
RU2015143212A (ru) 2017-04-20
CN109590018B (zh) 2022-06-03
GB2532342A (en) 2016-05-18
KR102264058B1 (ko) 2021-06-11
US20150238947A1 (en) 2015-08-27
KR20200126432A (ko) 2020-11-06
US20140271426A1 (en) 2014-09-18
JP6797253B2 (ja) 2020-12-09
JP2016516565A (ja) 2016-06-09
GB201518175D0 (en) 2015-11-25
EP2983819A1 (en) 2016-02-17
CN109590018A (zh) 2019-04-09
EP2983819B1 (en) 2022-12-14
BR112015022557A2 (pt) 2017-07-18

Similar Documents

Publication Publication Date Title
GB2558467B (en) Catalyst for treating exhaust gas
GB2517034B (en) Catalyzed filter for treating exhaust gas
GB2534644B (en) Zeolite blend catalysts for treating exhaust gas
GB2517035B (en) Catalyzed filter for treating exhaust gas
PL2959959T3 (pl) Układ do obróbki gazu spalinowego
ZA201704022B (en) Exhaust gas purifying catalyst
GB2530129B (en) Catalytic article for treating exhaust gas
ZA201603183B (en) Exhaust gas control catalyst
ZA201801821B (en) Exhaust gas treatment catalysts
GB2533452B (en) Zoned catalyst for treating exhaust gas
GB2533448B (en) Zoned catalyst for treating exhaust gas
IL233332B (en) Exhaust system to reduce gas
EP3034165A4 (en) Catalyst for cleaning exhaust gas
GB2516554B (en) Catalyst for treating exhaust gas
ZA201704023B (en) Exhaust gas purifying catalyst
EP3034166A4 (en) Exhaust gas purification catalyst
EP3045227A4 (en) Exhaust gas purification catalyst
GB201405129D0 (en) Exhaust gas treatment catalysts
EP3081296A4 (en) Exhaust gas purifying catalyst
ZA201704021B (en) Exhaust gas purifying catalyst
EP3034164A4 (en) Exhaust gas purification catalyst
EP2883595A4 (en) EXHAUST TREATMENT SYSTEM
EP3020474A4 (en) Catalyst for exhaust gas purification
EP3026126B8 (en) Exhaust gas treatment method
EP2949896A4 (en) DEVICE FOR PURIFYING EXHAUST GAS