WO2008066275A1 - Hydrotalcite-zeolite composites and catalysts thereof by nox storage method - Google Patents

Hydrotalcite-zeolite composites and catalysts thereof by nox storage method Download PDF

Info

Publication number
WO2008066275A1
WO2008066275A1 PCT/KR2007/005810 KR2007005810W WO2008066275A1 WO 2008066275 A1 WO2008066275 A1 WO 2008066275A1 KR 2007005810 W KR2007005810 W KR 2007005810W WO 2008066275 A1 WO2008066275 A1 WO 2008066275A1
Authority
WO
WIPO (PCT)
Prior art keywords
zeolite
hydrotalcite
composite
catalyst
nitrogen oxides
Prior art date
Application number
PCT/KR2007/005810
Other languages
English (en)
French (fr)
Inventor
Hyun-Sik Han
Gon Seo
Young-San Yoo
Gi-Won Park
Original Assignee
Heesung Catalysts Corporation
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 Heesung Catalysts Corporation filed Critical Heesung Catalysts Corporation
Publication of WO2008066275A1 publication Critical patent/WO2008066275A1/en

Links

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
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/12—Silica and alumina
    • 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
    • B01J23/007—Mixed salts
    • 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
    • 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
    • B01J29/064—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof containing iron group metals, noble metals or copper
    • B01J29/068—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
    • B01J29/08—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
    • B01J29/10—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y containing iron group metals, noble metals or copper
    • B01J29/106—Y-type faujasite
    • 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
    • B01J29/12—Noble metals
    • B01J29/126—Y-type faujasite
    • 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
    • B01J29/18—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type
    • B01J29/20—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type 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
    • B01J29/18—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type
    • B01J29/20—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type containing iron group metals, noble metals or copper
    • B01J29/22—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
    • 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
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J35/30—
    • 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
    • B01J37/10—Heat treatment in the presence of water, e.g. steam
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/78—Compounds containing aluminium and two or more other elements, with the exception of oxygen and hydrogen
    • C01F7/784—Layered double hydroxide, e.g. comprising nitrate, sulfate or carbonate ions as intercalating anions
    • C01F7/785—Hydrotalcite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/204—Alkaline earth metals
    • B01D2255/2047—Magnesium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B01D2255/2065—Cerium
    • 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
    • B01D2255/20746—Cobalt
    • 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
    • B01D2255/20753—Nickel
    • 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
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/209—Other metals
    • B01D2255/2092—Aluminium
    • 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
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/91—NOx-storage component incorporated in the catalyst
    • 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
    • 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
    • B01J2229/30—After treatment, characterised by the means used
    • B01J2229/42—Addition of matrix or binder particles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area

Definitions

  • the present invention relates to a hydrotalcite-zeolite composite comprising
  • hydrotalcite substituted with transition metals a method of producing the
  • oxidizing substances such as oxygen, nitrogen
  • urea serving as a reductant, to exhaust gases to reduce the nitrogen oxides
  • This method is a method of removing nitrogen oxides by
  • Rea-SCR urea-selective catalytic reduction
  • ammonia has strong reducing ability and thus can efficiently reduce
  • urea injection apparatus such as a urea injection apparatus, a hydrolysis reactor, a storage apparatus,
  • a social infrastructure such as a sales network for a urea
  • nitrogen oxides are stored in barium oxide supported in alumina,
  • the injected fuel is decomposed into reducing
  • oxides are removed by the injection of fuel, and thus additional facilities for
  • the performance of an NSR catalyst is primarily evaluated by the amount of the
  • the NSR catalyst must have
  • an automobile purification catalyst contain a large amount of water and are
  • SUBSTITUTE SHEET compounds are formed into sulfur dioxide through a combustion process of fuel
  • barium oxide which is a conventional
  • the amount of nitrogen oxides stored in the catalyst is greatly decreased.
  • the storage materials are less poisoned by sulfur dioxide
  • zeolite-hydrotalcite composite which stores nitrogen oxides in pores thereof or between crystal planes thereof in an oxidation atmosphere without forming a nitrate, and desorbs nitrogen dioxide in a reduction atmosphere. Since the zeolite-hydrotalcite composite is used as a material for storing nitrogen dioxide, it is expected that the breaking of the structure of the zeolite-hydrotalcite composite due to the repeated state change will be prevented, and synergistic effect of using the advantages of two kinds of
  • the surface area of the zeolite-hydrotalcite composite measured using a
  • FIG. 1 is a schematic block diagram showing a process of preparing a zeolite-
  • FIG. 2 is a graph showing an X-ray diffraction pattern of zeolite Y, synthesized
  • FIG. 3 is a graph showing an X-ray diffraction pattern of hydrotalcite
  • FIG. 4 is a graph showing X-ray diffraction patterns of a zeolite Y-hydrotalcite
  • FIG. 5 is scanning electron micrographs of the zeolite Y-hydrotalcite composite
  • FIG. 6 is a graph showing nitrogen dioxide temperature-desorption curves of a
  • the present invention provides a method of producing a zeolite-hydrotalcite
  • composite including: preparing a zeolite stock solution and a hydrotalcite stock
  • the present invention provides the method of producing a zeolite-
  • hydrotalcite composite further including: supporting one or more platinum group
  • the zeolite is ANA zeolite, BEA zeolite, MFI zeolite,
  • MOR zeolite or zeolite Y.
  • the hydrotalcite is substituted with a transition metal
  • the hydrothermal reaction is conducted at a
  • the platinum group metal is supported on the zeolite-
  • hydrotalcite composite such that the amount thereof is 0.1 ⁇ 4.0%.
  • the composite of the present invention includes zeolite and hydrotalcite.
  • zeolite stock a zeolite stock
  • the zeolite stock solution and the hydrotalcite stock solution are mixed and then
  • a zeolite precursor solution and a hydrotalcite precursor solution are provided. Therefore, a zeolite precursor solution and a hydrotalcite precursor solution.
  • FIG. 1 schematically
  • hydrotalcite composite in which zeolite and hydrotalcite are simultaneously
  • an NSR catalyst in order to reduce nitrogen dioxide, desorbed in a reducing atmosphere, an NSR catalyst must be supported with precious metals, such as platinum, palladium, rhodium and the like.
  • the NSR catalyst is supported with the precious metals thorough impregnation, coprecipitation or evaporation, calcined, and then reduced. Through this process, the precious metals are supported on the zeolite-hydrotalcite composite, and thus act as active spots for reducing and removing nitrogen dioxide.
  • barium oxide which is chiefly used as a
  • oxides are stored in the zeolite-hydrotalcite composite in a state in which the
  • nitrogen oxides are coordinated with alkali earth metal ions or transition metal
  • zeolite-hydrotalcite composite has excellent durability.
  • hydrotalcite-zeolite composite is defined in
  • hydrotalcite-zeolite composite catalyst For example, HT-NaY(2.0) is a
  • hydrotalcite-zeolite composite in which Na+-containing zeolite Y is mixed with
  • hydrotalcite at a ratio of 2:1. If the hydrotalcite-zeolite composite is substituted
  • the element symbol of the transition metal is additionally
  • Y stock solution prepared by mixing 8.2 g of silica, 9.4 g of sodium hydroxide,
  • the solid product was washed, filtered, and then dried at a
  • FIG. 2 shows
  • Hydrotalcite for storing and removing nitrogen dioxide, present in exhaust gases
  • the yield of the synthesized hydrotalcite was 87% based on alumina
  • FIG. 3 shows the X-ray diffraction
  • Zeolite Y-hydrotalcite composites were prepared by mixing the zeolite Y stock
  • Example 2 hydrothermally reacting the mixed solution. Specifically,
  • zeolite Y-hydrotalcite composites (HT-NaY(0.5) and HT-NaY(2.0)
  • FIG. 4 shows X-ray
  • hydrotalcite appeared at diffraction angles of 1 L7°and 23.2°and diffraction
  • FIG. 5 shows the shapes of the prepared zeolite Y-hydrotalcite composites
  • hydrotalcite (Example 2) is much smaller than that of the zeolite Y (Example 1 ).
  • BET Brunauer-Emmett-Telle
  • zeolite Y-hydrotalcite composites is a composite of zeolite Y and hydrotalcite.
  • NaY(LO) composite was calcined in an electric furnace at a temperature of
  • zeolite Y composite was measured using a weight type adsorber.
  • An analcime zeolite-hydrotalcite composite was prepared using an analcime
  • zeolite stock solution a hydrotalcite stock solution was prepared using
  • hydrotalcite appeared weak at diffraction angles of 11.7°, 23.2°, 34.8°and
  • hydrotalcite composite has micropores, each of which is formed of a ring of
  • a mordenite zeolite-hydrotalcite composite was prepared by mixing a mordenite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Geology (AREA)
  • Combustion & Propulsion (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
PCT/KR2007/005810 2006-11-29 2007-11-19 Hydrotalcite-zeolite composites and catalysts thereof by nox storage method WO2008066275A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020060118939A KR100827788B1 (ko) 2006-11-29 2006-11-29 하이드로탈사이트-제올라이트 복합체 및 이를 이용한 질소산화물 흡장형 촉매
KR10-2006-0118939 2006-11-29

Publications (1)

Publication Number Publication Date
WO2008066275A1 true WO2008066275A1 (en) 2008-06-05

Family

ID=39468029

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2007/005810 WO2008066275A1 (en) 2006-11-29 2007-11-19 Hydrotalcite-zeolite composites and catalysts thereof by nox storage method

Country Status (2)

Country Link
KR (1) KR100827788B1 (ko)
WO (1) WO2008066275A1 (ko)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2341637A1 (es) * 2008-12-22 2010-06-23 Consejo Superior De Investigaciones Cientificas (Csic) Materiales composites micro- y nano-estructurados basados en hidroxidos dobles laminares de tipo hidrotalcita y silicatos de la famili de las arcillas.
GB2483801A (en) * 2010-09-17 2012-03-21 Magnesium Elektron Ltd Synthetic hydrotalcite
CN102049262B (zh) * 2009-10-28 2013-01-02 中国石油化工股份有限公司 一种清洁型co耐硫变换催化剂的制备方法
JP2016107262A (ja) * 2014-11-27 2016-06-20 国立大学法人佐賀大学 エンドトキシン及び／又はサイトカインの吸着体及びその製造方法、これを配合した皮膚外用製剤及び経口投与用製剤、並びにエンドトキシン及び／又はサイトカインの吸着除去方法
JP2016120488A (ja) * 2014-12-24 2016-07-07 国立大学法人佐賀大学 有害気相物質の除去のための吸着体及びその製造方法、有害気相物質除去材、並びに有害気相物質の除去方法
CN109833861A (zh) * 2017-11-28 2019-06-04 中国石油天然气股份有限公司 硅胶载体的改性制备方法
CN109833857A (zh) * 2017-11-28 2019-06-04 中国石油天然气股份有限公司 一种烯烃催化用载体硅胶的制备方法
CN109833860A (zh) * 2017-11-28 2019-06-04 中国石油天然气股份有限公司 一种硅胶载体的制备方法
CN114768754A (zh) * 2022-04-29 2022-07-22 福州城建设计研究院有限公司 一种吸附选择性的Mg/Al层状双金属氢氧化物成型吸附颗粒的制备、再生方法和应用
CN115845907A (zh) * 2022-12-16 2023-03-28 四川大学 一种低温scr催化剂及其制备方法和应用
CN114768754B (zh) * 2022-04-29 2024-05-14 福州城建设计研究院有限公司 一种吸附选择性的Mg/Al层状双金属氢氧化物成型吸附颗粒的制备、再生方法和应用

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101011830B1 (ko) * 2009-09-30 2011-01-31 상명대학교 산학협력단 질소산화물 분해용 혼합금속산화물 촉매
CN109833917B (zh) * 2017-11-28 2022-02-01 中国石油天然气股份有限公司 一种催化剂负载用硅胶载体的制备方法
CN113713838B (zh) * 2021-11-04 2022-01-04 中汽研（天津）汽车工程研究院有限公司 一种柴油车用整体式氧化型催化剂的制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05329374A (ja) * 1992-06-01 1993-12-14 Nissei Kagaku Kogyosho:Kk アルキルフェノール類の製造用触媒とアルキルフェノール類の製造方法
US5393722A (en) * 1993-08-20 1995-02-28 Uop Hydrothermally stable metal oxide solid solutions
US6010619A (en) * 1997-01-22 2000-01-04 Greenvue Company, Llc FCC process with zeolite and hydrotalcite
US6403852B1 (en) * 1996-12-25 2002-06-11 Sumitomo Chemical Co., Limited Process for producing alkenyl-substituted aromatic hydrocarbons

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100416787B1 (ko) * 2001-03-21 2004-01-31 코스모산업 주식회사 염화물 및 황화물 제거용 흡착제
WO2005087664A1 (ja) * 2004-03-16 2005-09-22 Waseda University ハイドロタルサイト様物質およびその製造方法、ならびに有害物質の固定化方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05329374A (ja) * 1992-06-01 1993-12-14 Nissei Kagaku Kogyosho:Kk アルキルフェノール類の製造用触媒とアルキルフェノール類の製造方法
US5393722A (en) * 1993-08-20 1995-02-28 Uop Hydrothermally stable metal oxide solid solutions
US6403852B1 (en) * 1996-12-25 2002-06-11 Sumitomo Chemical Co., Limited Process for producing alkenyl-substituted aromatic hydrocarbons
US6010619A (en) * 1997-01-22 2000-01-04 Greenvue Company, Llc FCC process with zeolite and hydrotalcite

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2341637A1 (es) * 2008-12-22 2010-06-23 Consejo Superior De Investigaciones Cientificas (Csic) Materiales composites micro- y nano-estructurados basados en hidroxidos dobles laminares de tipo hidrotalcita y silicatos de la famili de las arcillas.
WO2010072870A1 (es) 2008-12-22 2010-07-01 Consejo Superior De Investigaciones Científicas (Csic) Materiales composites micro- y nano-estructurados basados en hidróxidos dobles laminares de tipo hidrotalcita y silicatos de la familia de las arcillas
CN102049262B (zh) * 2009-10-28 2013-01-02 中国石油化工股份有限公司 一种清洁型co耐硫变换催化剂的制备方法
GB2483801A (en) * 2010-09-17 2012-03-21 Magnesium Elektron Ltd Synthetic hydrotalcite
GB2483801B (en) * 2010-09-17 2017-06-14 Magnesium Elektron Ltd Hydrotalcite-containing compositions for CO2 capture
JP2016107262A (ja) * 2014-11-27 2016-06-20 国立大学法人佐賀大学 エンドトキシン及び／又はサイトカインの吸着体及びその製造方法、これを配合した皮膚外用製剤及び経口投与用製剤、並びにエンドトキシン及び／又はサイトカインの吸着除去方法
JP2016120488A (ja) * 2014-12-24 2016-07-07 国立大学法人佐賀大学 有害気相物質の除去のための吸着体及びその製造方法、有害気相物質除去材、並びに有害気相物質の除去方法
CN109833857A (zh) * 2017-11-28 2019-06-04 中国石油天然气股份有限公司 一种烯烃催化用载体硅胶的制备方法
CN109833861A (zh) * 2017-11-28 2019-06-04 中国石油天然气股份有限公司 硅胶载体的改性制备方法
CN109833860A (zh) * 2017-11-28 2019-06-04 中国石油天然气股份有限公司 一种硅胶载体的制备方法
CN109833857B (zh) * 2017-11-28 2022-01-04 中国石油天然气股份有限公司 一种烯烃催化用载体硅胶的制备方法
CN109833861B (zh) * 2017-11-28 2022-01-04 中国石油天然气股份有限公司 硅胶载体的改性制备方法
CN109833860B (zh) * 2017-11-28 2022-01-04 中国石油天然气股份有限公司 一种硅胶载体的制备方法
CN114768754A (zh) * 2022-04-29 2022-07-22 福州城建设计研究院有限公司 一种吸附选择性的Mg/Al层状双金属氢氧化物成型吸附颗粒的制备、再生方法和应用
CN114768754B (zh) * 2022-04-29 2024-05-14 福州城建设计研究院有限公司 一种吸附选择性的Mg/Al层状双金属氢氧化物成型吸附颗粒的制备、再生方法和应用
CN115845907A (zh) * 2022-12-16 2023-03-28 四川大学 一种低温scr催化剂及其制备方法和应用

Also Published As

Publication number Publication date
KR100827788B1 (ko) 2008-05-07

Similar Documents

Publication Publication Date Title
WO2008066275A1 (en) Hydrotalcite-zeolite composites and catalysts thereof by nox storage method
US7740818B2 (en) Transition metal-substituted hydrotalcite catalyst for removing nitrogen oxides from the exhaust gas of diesel engine by storage-reduction
USRE39553E1 (en) SOx tolerant NOx trap catalysts and methods of making and using the same
US5433933A (en) Method of purifying oxygen-excess exhaust gas
EP2308596B1 (en) Cu/zeolite SCR catalyst for NOx reduction in exhaust gases and manufacture method thereof
US6042797A (en) Adsorbent for ethylene, method for adsorbing and removing ethylene and method for purifying an exhaust gas
CN112236230B (zh) 稳定的小孔沸石
US20090297416A1 (en) ALUMINA-BASED NITROGEN OXIDE (NOx) TRAPPING COMPOSITIONS AND TREATMENT OF VEHICULAR EXHAUST GASES THEREWITH
CN112041060B (zh) 稳定的cha沸石
EP2518017A1 (en) Novel metallosilicate, production method thereof, nitrogen oxide purification catalyst, production method thereof, and nitrogen oxide purification method making use thereof
KR101473007B1 (ko) 질소 산화물 정화 촉매 및 질소 산화물 정화 방법
EP1062029A1 (en) Catalytic reduction of nitrogen oxide emissions with mcm-49 and mcm-56
Lv et al. Understanding the superior NH 3-SCR activity of CHA zeolite synthesized via template-free interzeolite transformation
JPH11216358A (ja) 炭化水素吸着剤及び排ガス浄化触媒
JP4905027B2 (ja) β型ゼオライトからなる炭化水素吸着剤
JP2008080195A (ja) 高シリカβ型ゼオライトからなる炭化水素吸着剤
JP3975557B2 (ja) エチレン吸着除去方法
Ito et al. Cerium-exchanged zeolites grown on metal gauze: A new catalyst system applicable for NOx reduction in mobile engine exhaust
KR0146879B1 (ko) 질소 산화물 제거용 모더나이트-함유 천연 제올라이트 촉매
Naraki et al. Synthesis of Fe-Based BEA Zeolites in Fluoride Media and Their Catalytic Performance in the NH3-SCR of NO x
WO2023042783A1 (ja) コアシェル型ゼオライト
KR20240012510A (ko) 팔라듐을 함유하는 nox 흡착용 afx-bea 제올라이트 복합 촉매의 합성
KR20240012454A (ko) Nox 흡착을 위한 팔라듐-함유 afx 제올라이트 촉매의 합성
JP4352486B2 (ja) 排ガス浄化触媒及び排ガス浄化方法
Gao et al. Automotive Catalysis

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: 07834116

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07834116

Country of ref document: EP

Kind code of ref document: A1