WO2008009453A2 - Verfahren zur herstellung metalldotierter zeolithe und ihre verwendung bei der katalytischen umwandlung von stickoxiden - Google Patents
Verfahren zur herstellung metalldotierter zeolithe und ihre verwendung bei der katalytischen umwandlung von stickoxiden Download PDFInfo
- Publication number
- WO2008009453A2 WO2008009453A2 PCT/EP2007/006442 EP2007006442W WO2008009453A2 WO 2008009453 A2 WO2008009453 A2 WO 2008009453A2 EP 2007006442 W EP2007006442 W EP 2007006442W WO 2008009453 A2 WO2008009453 A2 WO 2008009453A2
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- WIPO (PCT)
- Prior art keywords
- metal
- zeolite
- zeolites
- mixture
- doped
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Classifications
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- 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
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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
- 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
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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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0027—Powdering
- B01J37/0036—Grinding
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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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/04—Mixing
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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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/082—Decomposition and pyrolysis
- B01J37/088—Decomposition of a metal salt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/50—Zeolites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/402—Dinitrogen oxide
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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
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
-
- 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
- B01J2229/40—Special temperature treatment, i.e. other than just for template removal
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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
- 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
- B01J29/061—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof containing metallic elements added to the zeolite
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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
- 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
- B01J29/072—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
- B01J29/08—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
- B01J29/18—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
- B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
- B01J29/42—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively containing iron group metals, noble metals or copper
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- 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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
Definitions
- the present invention relates to a process for the preparation of metal-doped zeolites and their use in the catalytic conversion, in particular of nitrogen oxides.
- Metal-doped zeolites and their use, in particular in the catalytic conversion of nitrogen oxides, for example from exhaust gases, are known from the prior art.
- metal-doped zeolites are used in particular either in pure form or as components of coatings on catalyst structures use as a catalyst for the purification of exhaust gases.
- the metal-doped zeolites are doped with at least one metallic, catalytically active component.
- the catalytically active metal component is a transition or noble metal, in particular a catalytically active metal such as copper, cobalt, iron, rhodium, platinum, etc.
- US 5,271,913 describes a catalyst for the conversion of nitrogen oxides from exhaust gases, wherein the nitrogen oxides are converted to nitrogen.
- This catalyst is doped, for example, with cerium or iron, and the catalytic activity is further enhanced in particular by the use of a zeolite with a high silicon content.
- the oxide content in which the molar ratio of SiO 2 to Al 2 O 3 is twenty or more is improved.
- Processes for doping zeolites with metals include, as disclosed in US 5,271,913, ion exchange processes in aqueous solution, as also described in US 5,171,553.
- silicon-rich zeolites having Si: Al ratios of 5 to 50 are used as supports for the active components.
- a further disadvantage of the hitherto known metal-doped zeolites as catalysts is in particular their reduced long-term stability, in particular with regard to the environment containing water vapor and sulfur dioxide, in particular in automobile exhaust gases.
- metal-doped zeolites can be given long-term stability when the metal-doped zeolite is prepared under anaerobic conditions, so that the oxidation of Fe 2+ cations in aqueous medium to Fe 3+ and the simultaneous precipitation of iron hydroxides are delayed as long as possible can.
- EP 0 955 080 Bl proposes that in order to increase the long-term stability of metal-doped zeolites, the doping takes place in a solid-state ion exchange reaction under a protective gas atmosphere, in particular a reductive protective gas atmosphere, for example under ammonia or nitrogen, so that by the anaerobic conditions in the calcination relatively long-term stable metal-doped zeolite can be obtained as a catalyst.
- a protective gas atmosphere in particular a reductive protective gas atmosphere, for example under ammonia or nitrogen
- a metal that, due to its reduction properties and its sulfur resistance, but also due to its Health safety is preferably used as a doping material is iron.
- EP 0 955 080 B1 leads disadvantageously to uneven metal or iron doping and, due to the high temperatures, often leads to oxidation of the Fe 2+ used to inactive Fe 3+ .
- the zeolite lattice can also be damaged by the reactive atmosphere of resulting NH 3 and HCl.
- the method for producing metal-doped zeolites comprises the following steps:
- the metal based on the zeolite, is preferably contained as metal oxide in an amount of 0.5 to 20% by weight.
- the calcination furnace is formed by the elimination of gases such as HCl, NH 3 and water during the solid state reaction, an overpressure in the furnace, which is constantly compensated by the application of a negative pressure or vacuum to get to the negative pressure range according to the invention.
- the doping of the zeolite preferably takes place in a so-called low bed, i. the zeolite is introduced into a reactor in powder form, the deep bed of the powder typically having a thickness of 5 to 50 cm, preferably 10 to 20 cm.
- the internal pressure of the reactor is preferably maintained in the range from -10 to -150, more preferably from -10 to -100, very particularly preferably from -10 to -50 millibar, resulting in metal-doped zeolites, which are particularly reactive and long-term stable.
- the catalytically active metal is selected from the group consisting of Cu, Co, Rh, Pd, Ir, Pt, Ru, Fe, Ni, V.
- the catalytically active metal is in the form of a salt, for example a nitrate, sulfate, sulfite , Hydroxides, nitrites, etc. or used in the form of a complex compound.
- a nitrogen-containing compound selected from an ammonium salt, urea or a urea derivative is added.
- urea derivative is understood to mean so-called urea prills or granules (eg obtainable from the companies SKW or Jara) which are not present in crystalline form.
- a nitrogen or ammonia-containing atmosphere is automatically created during calcination, which, however, by the permanently applied negative pressure not so strong concentrations of ammonia that comes to damage the zeolite lattice.
- step iii) the mixture is heated to a temperature between 300 0 C to 800 0 C, preferably 400 0 C to 600 ° C heated. This means that relatively mild conditions are used compared with conventional solid-state processes, so that a thermal damage to the zeolite is also avoided.
- the heating time during the process according to the invention is 90 minutes to 5 hours, in contrast to the longer heating steps in the process of the prior art.
- the temperature is advantageously maintained for 8 to 20 hours, preferably 10 to 16 hours, so that the solid state reaction (“calcination") between the components of the dry mixture is complete.
- the catalytically active metal in the form of its metal compound is added in an amount of 0.5 to 10 wt .-% based on the total dry mixture.
- the zeolite used is preferably silicon-rich zeolites of the type ZSM-5, Y, BETA or mordenite, which have a ratio of SiO 2 : Al 2 O 3 of> 2.5, preferably> 10.
- the zeolites are completely or partially present in their ammonia form, so that ammonia is released automatically when heated.
- the metal-doped zeolite obtainable by the process according to the invention is used in particular for the catalytic conversion of NO x and N 2 O, in particular in automobile exhaust gases, since it is particularly long-term stable and extremely reactive.
- it is generally suitable for the removal of NO x and N 2 O, for example from industrial processes, especially in the production of nitric acid and adipic acid.
- a 5 g ammonium zeolite BETA with a SiO 2 / Al 2 O 3 ratio of 40 was ball-milled with 0.9 g FeSO 4 .7H 2 O (Merck) (calculated to be 5 wt.% Fe 2 O 3 ) for one hour at room temperature. Subsequently, a low bed consisting of the mixture of 10 cm height was used in a calcination furnace.
- the calcination furnace was heated from room temperature to 500 ° C. for 90 minutes.
- the internal pressure of the furnace WUR ⁇ de kept at -20 millibars.
- the temperature of 500 ° C. and the reduced pressure were maintained for 12 hours, and then the calciner was cooled to room temperature and the iron-doped zeolite was washed with water and dried.
- the powder was processed with a binder (Pseudoböhmit) in the usual way to shaped catalyst bodies.
- a binder Pseudoböhmit
- Example 2 Several catalysts obtained analogously to Example 1 were tested in the catalytic reduction of nitrous oxide with methane as the reducing agent. The catalysts were produced at different sub-pressures in the furnace to determine the influence of the applied negative pressure.
- the comparative experiments were conducted at 360 0 C and carried out a GHSV of 10,000 h -1 and with a ratio of CH 4 / N 2 O of 0.25.
- the difference in intrinsic activity in this catalytic reaction is about a factor of about 2, i.
- the amount of catalyst to be used can thus be halved if a catalyst prepared by means of the process obtained according to the invention is used in comparison with a conventionally prepared catalyst (EP 0 955 080 B1).
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- Environmental & Geological Engineering (AREA)
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Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/374,446 US9018120B2 (en) | 2006-07-19 | 2007-07-19 | Method for producing metal-doped zeolites and use thereof for the catalytic conversion of nitrogen oxides |
EP07786203.5A EP2043783B1 (de) | 2006-07-19 | 2007-07-19 | Verfahren zur herstellung metalldotierter zeolithe und ihre verwendung bei der katalytischen umwandlung von stickoxiden |
JP2009519873A JP5322932B2 (ja) | 2006-07-19 | 2007-07-19 | 金属ドープゼオライトの製造方法および窒素酸化物の触媒的転化におけるその使用 |
PL07786203T PL2043783T3 (pl) | 2006-07-19 | 2007-07-19 | Sposób wytwarzania zeolitów domieszkowanych metalem i ich zastosowanie w katalitycznej konwersji tlenków azotu |
ZA2009/01115A ZA200901115B (en) | 2006-07-19 | 2009-02-17 | Method for producing metal-doped zeolites and use thereof for the catalytic conversion of nitrogen oxides |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006033452.3 | 2006-07-19 | ||
DE200610033452 DE102006033452A1 (de) | 2006-07-19 | 2006-07-19 | Verfahren zur Herstellung metalldotierter Zeolithe und ihre Verwendung bei der katalytischen Umwandlung von Stickoxiden |
Publications (2)
Publication Number | Publication Date |
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WO2008009453A2 true WO2008009453A2 (de) | 2008-01-24 |
WO2008009453A3 WO2008009453A3 (de) | 2008-03-20 |
Family
ID=38758060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/006442 WO2008009453A2 (de) | 2006-07-19 | 2007-07-19 | Verfahren zur herstellung metalldotierter zeolithe und ihre verwendung bei der katalytischen umwandlung von stickoxiden |
Country Status (7)
Country | Link |
---|---|
US (1) | US9018120B2 (de) |
EP (1) | EP2043783B1 (de) |
JP (1) | JP5322932B2 (de) |
DE (1) | DE102006033452A1 (de) |
PL (1) | PL2043783T3 (de) |
WO (1) | WO2008009453A2 (de) |
ZA (1) | ZA200901115B (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2463028A1 (de) | 2010-12-11 | 2012-06-13 | Umicore Ag & Co. Kg | Verfahren zur Herstellung von metalldotierten Zeoliten und Zeotypen sowie dessen Anwendung zur katalytischen Entfernung von Stickstoffoxiden |
EP2679306A1 (de) * | 2012-06-29 | 2014-01-01 | Süd-Chemie AG | Verfahren zur Herstellung von metalldotierten Zeolithen |
WO2015154829A1 (en) | 2014-04-07 | 2015-10-15 | Haldor Topsøe A/S | Method for producing metal exchanged microporous materials by solid-state ion exchange |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010009938U1 (de) | 2010-07-07 | 2010-10-14 | Süd-Chemie AG | Verwendung eines Zeolithen vom Typ BEA zur Minderung des N2O-Gehalts in sauerstoffreichen Abgasströmen |
ES2534198T3 (es) | 2010-08-27 | 2015-04-20 | Technical University Of Denmark | Catalizadores RCS de zeolita de tipo mordenita con cobre |
EP2611524B1 (de) | 2010-09-03 | 2014-04-30 | Danmarks Tekniske Universitet | Durch heteropolysäuren aktivierter katalysator für die selektive katalytische reduktion von nox mit ammoniak |
DE102012018629A1 (de) | 2012-09-21 | 2014-03-27 | Clariant International Ltd. | Verfahren zur Reinigung von Abgas und zur Regenerierung eines Oxidationskatalysators |
DE202013012229U1 (de) | 2013-04-05 | 2015-10-08 | Umicore Ag & Co. Kg | CuCHA Material für die SCR-Katalyse |
EP3129141B1 (de) * | 2014-04-07 | 2020-04-15 | Haldor Topsøe A/S | Verfahren zur herstellung von metallausgetauschten metallaluminophosphaten durch festkörper-ionen bei niedrigen temperaturen |
CN110270377B (zh) * | 2019-07-01 | 2022-10-18 | 西京学院 | 一种甲烷干重整镍基催化剂及其制备方法和用途 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0955080A1 (de) * | 1998-05-08 | 1999-11-10 | AlSi-PENTA Zeolithe GmbH | Verfahren zur Herstellung eines Katalysators für die Reinigung von Abgasen |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5271913A (en) | 1989-12-28 | 1993-12-21 | Mitsubishi Jukogyo Kabushiki Kaisha | Denitration catalyst for high-temperature exhaust gas |
US5171553A (en) | 1991-11-08 | 1992-12-15 | Air Products And Chemicals, Inc. | Catalytic decomposition of N2 O |
DE19709100B4 (de) * | 1997-03-06 | 2007-09-06 | Ferro Gmbh | Dekorfarbe, Verfahren zu ihrer Herstellung und ihre Verwendung |
WO2001030696A1 (en) * | 1999-10-28 | 2001-05-03 | The Regents Of The University Of California | Catalysts for lean burn engine exhaust abatement |
DE10020100A1 (de) * | 2000-04-22 | 2001-10-31 | Dmc2 Degussa Metals Catalysts | Verfahren und Katalysator zur Reduktion von Stickoxiden |
JP2002219338A (ja) * | 2000-11-27 | 2002-08-06 | National Institute Of Advanced Industrial & Technology | 窒素酸化物の還元処理方法 |
US6632767B2 (en) * | 2000-12-19 | 2003-10-14 | Praxair Technology, Inc. | Stabilization of molecular sieves by salt addition |
DE10226461A1 (de) * | 2002-06-13 | 2004-01-22 | Uhde Gmbh | Verfahren und Vorrichtung zur Verringerung des Gehaltes an NOx und N2O in Gasen |
CA2784860A1 (en) * | 2009-12-18 | 2011-06-23 | Basf Se | Ferrous zeolite, method for producing ferrous zeolites, and method for catalytically reducing nitrous oxides |
-
2006
- 2006-07-19 DE DE200610033452 patent/DE102006033452A1/de not_active Ceased
-
2007
- 2007-07-19 WO PCT/EP2007/006442 patent/WO2008009453A2/de active Application Filing
- 2007-07-19 JP JP2009519873A patent/JP5322932B2/ja active Active
- 2007-07-19 PL PL07786203T patent/PL2043783T3/pl unknown
- 2007-07-19 US US12/374,446 patent/US9018120B2/en active Active
- 2007-07-19 EP EP07786203.5A patent/EP2043783B1/de active Active
-
2009
- 2009-02-17 ZA ZA2009/01115A patent/ZA200901115B/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0955080A1 (de) * | 1998-05-08 | 1999-11-10 | AlSi-PENTA Zeolithe GmbH | Verfahren zur Herstellung eines Katalysators für die Reinigung von Abgasen |
Non-Patent Citations (4)
Title |
---|
KINGER G ET AL: "Comparison of impregnation, liquid- and solid-state ion exchange procedures for the incorporation of nickel in HMFI, HMOR and HBEA - Activity and selectivity in n-nonane hydroconversion" MICROPOROUS AND MESOPOROUS MATERIALS, ELSEVIER SCIENCE PUBLISHING, NEW YORK, US, Bd. 39, Nr. 1-2, September 2000 (2000-09), Seiten 307-317, XP004215035 ISSN: 1387-1811 * |
KUCHEROV A V ET AL: "INTRODUCTION OF CR(V), MO(V) AND V(IV) IONS IN CATIONIC POSITIONS OF HIGH-SILICA ZEOLITES BY A SOLID-STATE REACTION" ZEOLITES, BUTTERWORTH-HEINEMANN, US, Bd. 7, Januar 1987 (1987-01), Seiten 38-42, XP000862814 ISSN: 0144-2449 * |
RAUSCHER M ET AL: "Preparation of a highly active Fe-ZSM-5 catalyst through solid-state ion exchange for the catalytic decomposition of N2O" APPLIED CATALYSIS A: GENERAL, ELSEVIER SCIENCE, AMSTERDAM, NL, Bd. 184, Nr. 2, 16. August 1999 (1999-08-16), Seiten 249-256, XP004271893 ISSN: 0926-860X * |
SOWADE T ET AL: "Relations between structure and catalytic activity of Ce-In-ZSM-5 catalysts for the selective reduction of NO by methane - II. Interplay between the CeO2 promoter and different indium sites" JOURNAL OF CATALYSIS, ACADEMIC PRESS, DULUTH, MN, US, Bd. 225, Nr. 1, 1. Juli 2004 (2004-07-01), Seiten 105-115, XP004511045 ISSN: 0021-9517 * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2463028A1 (de) | 2010-12-11 | 2012-06-13 | Umicore Ag & Co. Kg | Verfahren zur Herstellung von metalldotierten Zeoliten und Zeotypen sowie dessen Anwendung zur katalytischen Entfernung von Stickstoffoxiden |
WO2012076648A1 (en) | 2010-12-11 | 2012-06-14 | Umicore Ag & Co. Kg | Process for the production of metal doped zeolites and zeotypes and application of same to the catalytic remediation of nitrogen oxides |
KR20140035323A (ko) * | 2010-12-11 | 2014-03-21 | 우미코레 아게 운트 코 카게 | 금속 도핑된 제올라이트 및 제오타입의 제조 방법 및 질소 산화물의 촉매 정화에 대한 이들의 적용 |
US8865120B2 (en) | 2010-12-11 | 2014-10-21 | Umicore Ag & Co., Kg | Process for the production of metal doped zeolites and zeotypes and application of same to the catalytic remediation of nitrogen oxides |
RU2595336C2 (ru) * | 2010-12-11 | 2016-08-27 | Умикоре Аг Унд Ко. Кг | Способ получения цеолитов и цеолитоподобных структур, допированных металлами, и способы их применения для каталитической нейтрализации оксидов азота |
KR101950670B1 (ko) * | 2010-12-11 | 2019-02-21 | 우미코레 아게 운트 코 카게 | 금속 도핑된 제올라이트 및 제오타입의 제조 방법 및 질소 산화물의 촉매 정화에 대한 이들의 적용 |
EP2679306A1 (de) * | 2012-06-29 | 2014-01-01 | Süd-Chemie AG | Verfahren zur Herstellung von metalldotierten Zeolithen |
WO2015154829A1 (en) | 2014-04-07 | 2015-10-15 | Haldor Topsøe A/S | Method for producing metal exchanged microporous materials by solid-state ion exchange |
US9895660B2 (en) | 2014-04-07 | 2018-02-20 | Haldor Topsoe A/S | Method for producing metal exchanged microporous materials by solid-state ion exchange |
Also Published As
Publication number | Publication date |
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US20100075834A1 (en) | 2010-03-25 |
WO2008009453A3 (de) | 2008-03-20 |
US9018120B2 (en) | 2015-04-28 |
EP2043783B1 (de) | 2020-09-30 |
PL2043783T3 (pl) | 2021-04-06 |
DE102006033452A1 (de) | 2008-01-24 |
JP5322932B2 (ja) | 2013-10-23 |
EP2043783A2 (de) | 2009-04-08 |
JP2009543685A (ja) | 2009-12-10 |
ZA200901115B (en) | 2010-02-24 |
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