+

WO2013060341A1 - Composition de catalyseur s'utilisant dans la réduction catalytique sélective d'oxydes d'azote - Google Patents

Composition de catalyseur s'utilisant dans la réduction catalytique sélective d'oxydes d'azote Download PDF

Info

Publication number
WO2013060341A1
WO2013060341A1 PCT/EP2011/005344 EP2011005344W WO2013060341A1 WO 2013060341 A1 WO2013060341 A1 WO 2013060341A1 EP 2011005344 W EP2011005344 W EP 2011005344W WO 2013060341 A1 WO2013060341 A1 WO 2013060341A1
Authority
WO
WIPO (PCT)
Prior art keywords
components
zeolite
catalyst composition
catalyst
zeotype
Prior art date
Application number
PCT/EP2011/005344
Other languages
English (en)
Inventor
Alexandr STAKHEEV
Marie GRILL
Arkady Kustov
Original Assignee
Haldor Topsøe A/S
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 Haldor Topsøe A/S filed Critical Haldor Topsøe A/S
Priority to MX2014004494A priority Critical patent/MX2014004494A/es
Priority to PCT/EP2011/005344 priority patent/WO2013060341A1/fr
Priority to AU2012327482A priority patent/AU2012327482A1/en
Priority to IN2950CHN2014 priority patent/IN2014CN02950A/en
Priority to PCT/EP2012/058003 priority patent/WO2013060487A1/fr
Priority to CA2853154A priority patent/CA2853154C/fr
Priority to KR1020147013999A priority patent/KR101789114B1/ko
Priority to US14/353,620 priority patent/US9168517B2/en
Priority to JP2014537523A priority patent/JP6112734B2/ja
Priority to CN201280052240.5A priority patent/CN103889569B/zh
Priority to RU2014120917A priority patent/RU2608616C2/ru
Priority to BR112014008669-9A priority patent/BR112014008669B1/pt
Priority to EP12721442.7A priority patent/EP2771111A1/fr
Publication of WO2013060341A1 publication Critical patent/WO2013060341A1/fr
Priority to CL2014000993A priority patent/CL2014000993A1/es

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
    • B01D53/9418—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
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/72—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • 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
    • 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
    • B01J29/7007—Zeolite Beta
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • 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
    • B01D2255/2073—Manganese
    • 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
    • B01D2255/20—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
    • B01D2255/40—Mixed oxides
    • B01D2255/407—Zr-Ce mixed oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/50—Zeolites
    • B01D2255/502—Beta zeolites

Definitions

  • the present invention relates to catalyst composition for use in selective reduction of nitrogen oxides in off-gases by reaction with ammonia or a precursor thereof.
  • Catalysts for NH 3 -SCR i.e. selective reduction of nitrogen oxides (NOx) by use of ammonia as reductant are well known in the art.
  • Those catalysts include zeolitic material, optionally promoted with copper or iron
  • the problem to be solved by this invention is to provide a catalyst composition and method for the reduction of nitrogen oxides with a DeNO x activity at reaction temperatures between 150 and 550°C.
  • the catalyst composition and method of this invention shall further include soot and hydrocarbon oxidation activity simultaneously with the DeNOx activity.
  • the invention provides in its broadest embodiment a catalyst composition for selective reduction of nitrogen
  • the catalyst composition comprises a physical mixture of one or more acidic zeolite or zeotype components and one ore more redox active metal compounds.
  • catalyst compositions comprising one or more zeolite or zeotype components from the group of BEA, MFI , FAU, FER, CHA, MOR in protonic form or promoted with Fe and redox metal component (Cu/Al 2 0 3( ⁇ / ⁇ 2 0 3 , Ce0 2 -Zr0 2 , Ce- n/Al 2 0 3 ) exhibit a pronounced synergistic effect.
  • DeNO x activity of such composite catalysts significantly exceeds activity of their individual components.
  • the redox component can additionally provide good soot oxidation function which can be used in combined SCR/DPF systems.
  • a preferred catalyst composition for selective reduction of nitrogen oxides and soot oxidation comprises one or more acidic zeolite or zeotype components and one or more redox active metal compounds wherein the one or more acidic zeolite or zeotype components are selected from the group consisting of BEA, MFI, FAU, FER, CHA, MOR or mixtures thereof.
  • the acidic zeolite or zeotype component can be used in protonic form or promoted with Fe and one or more redox active metal components are selected form the group consisting of Cu/Al203, Mn/Al203, Ce02-Zr02, Ce- Mn/Al203 and mixtures thereof.
  • redox active metal compounds as used herein relates to metal compounds which reversibly can be oxidized and reduced in terms of changes in oxidation number, or oxidation state, of the metal atom or compound.
  • the weight ratio between the zeolite components and the redox components is between 1:1 to 1:50
  • the redox components are dispersed on a support selected from the group consisting of A1 2 0 3 , Ti0 2 , Si0 2 , Ce0 2 , Zr0 2 or mixtures thereof.
  • the mean molar ratio Si/Al of the zeolite components according to the invention is from 5 to 100.
  • Catalyst compositions prepared by mechanical mixing of the above mentioned zeolite and redox metal components exhibit a pronounced synergistic effect. DeNO x activity of such composite catalysts significantly exceeds activity of their individual components.
  • the one or more redox active metal components are physically mixed with the one or more zeolite components or dispersed on surface of the zeolite components.
  • the one or more redox active metal components dispersed on the surface of the one or more zeolite or zeotype components contain Ce, Mn, and Zr, Cr or mixtures thereof.
  • the above described catalyst composition according to the invention can be utilised as coating material or being coated on structured bodies of metallic, ceramic, metal oxide, SiC or silica materials or fibres.
  • the invention further provides a monolithic structured body being coated with a catalyst composition according to anyone of the above disclosed embodiments of the invention .
  • the monolithic structured body is preferably made from metallic, ceramic, metal oxide, SiC or silica fiber materials .
  • the monolithic structured body may be in form of a particle filter, e.g. a honeycomb structured filter or a wall flow filter .
  • the catalyst composition is coated on the body in of two or several separate catalyst layers in series or as two or several catalyst layers in parallel and wherein the layers have different compositions or layer thicknesses.
  • amount of expensive zeolite/ zeotype component in the composite catalyst can be significantly re- prised by its replacement with equivalent volume of redox component.
  • overall volume of the catalyst remains constant, but the amount of zeolite component can be decreased by 2-5 times, without notable sacrificing DeNO x performance.
  • Ce-Mn/Al 2 03 component is used for the catalyst preparation, notable improvement of NOx conversion at r eact ⁇ 250°C is observed despite decreased amount of zeolite component.
  • the invention provides additionally a method for the selective reduction of nitrogen oxides and oxidation of soot contained in an off-gas comprising the step of contacting the off-gas in presence of ammonia with a catalyst composition comprising a physical mixture of one or more acidic zeolite or zeotype components and one ore more redox active metal compounds .
  • the acidic zeolite or zeotype components are selected from the group consisting of BEA, MFI, FAU, FER, CHA, MOR or mix- tures thereof and the one or more redox active metal components are selected form the group consisting of Cu/Al 2 0 3( Mn/Al 2 0 3 , Ce0 2 -Zr0 2 , Ce-Mn/Al 2 0 3 and mixtures thereof.
  • the acidic zeolite or zeotype component can be used in pro- tonic form or promoted with Fe
  • the one or more redox active metal compounds are dispersed on a support se- lected from the group consisting of Al 2 0 3/ Ti0 2 , Si0 2/ Zr0 2 or mixtures thereof.
  • the one or more redox active metal components are physically mixed with the one or more zeolite components or dispersed on surface of the zeolite components.
  • the one ore more redox active metal components are dispersed on the surface of the one or more zeolite components contain Ce, Mn, and Zr, Cr or mixtures thereof.
  • the catalyst composition is contacted with the off-gas at a tem- perature below 250°C.
  • the powders were thoroughly grinded in agate mortar for 10-15 min, followed by pelletization . The pellets were crushed and sieved collecting 0.2 - 0.4 mm fraction for catalytic test. Similarly pelletized 74wt%Ce0 2 -26wt%Zr0 2 , H-Beta, and Fe- Beta zeolite were used as reference samples.
  • the catalysts were tested in the NH 3 -DeN0x in the temperature range of 150-550 °C.
  • the test was performed under fol- lowing conditions: decreasing reaction temperature with a rate of 2°C/min, feed gas composition: 500 ppm NO, 540 ppm NH 3 , 10 vol% 0 2 , 6 vol% H 2 0, balanced with N 2 to obtain a total flow of 300 mL/min.
  • ⁇ conversion over composite catalyst is similar to NO x conversion over commercial Fe-Beta zeolite (Fe-Beta) at 230-550°C, and exceeds NO x conversion over Fe-Beta zeolite at 150-200°C.
  • Fe-Beta Fe-Beta zeolite
  • a second sample was prepared by mixing 74wt%Ce0 2 -26wt%Zr0 2 and Fe-Beta powders at a weight ratio of 10. For the second sample volume ratio of 74wt%Ce0 2 -26wt%Zr0 2 /Fe-Beta zeolite equals 3/1.
  • the second sample with 3/1 volume component ratio [0.197g 74%Ce0 2 -Zr0 2 + 0.02g Fe-Beta zeolite];
  • Reference sample 0.02 g Fe-Beta zeolite
  • the catalysts were tested in NH 3 -DeNO x within the temperature range of 150-550 °C. The test was performed under following conditions: decreasing reaction temperature with a rate of 2°C/min, feed gas composition: 500 ppm NO, 540 ppm NH 3 , 10 vol% 0 2 , 6 vol% H 2 0, balanced with N 2 to obtain a total flow of 300 mL/min.
  • a first sample was prepared by mixing 74wt%Ce0 2 -26wt%ZrC>2 and Fe-Beta powders at a weight ratio of 3.3. In this case volume ratio of 74wt% Ce0 2 - 26wt% Zr0 2 /Fe-Beta zeolite equals 1/1.
  • a second sample was prepared by mixing 74wt%Ce0 2 -26wt%Zr0 2 and Fe-Beta zeolite powders at a weight ratio of 15.5.
  • For the second sample volume ratio of 74wt%Ce0 2 -26wt%Zr0 2 and Fe-Beta zeolite components equals 5/1.
  • a third sample was prepared by was prepared by mixing 74wt%Ce0 2 -26wt%Zr0 2 and Fe-Beta zeolite powders at a weight ratio of 30.
  • For the second sample volume ratio of 74wt%Ce0 2 -26wt%Zr0 2 and Fe-Beta zeolite components equals 10/1. After grinding in agate mortar for 10-15 min, the resulted mixtures were pelletized. The pellets were crushed and sieved collecting 0.2 - 0.4 mm fraction for catalytic test. Similarly pelletized Fe-Beta zeolite was used as reference. Activities of the prepared samples were tested using the following catalyst loading which kept constant volume of the catalyst in the reactor. In all experiments described below overall volume on the catalyst loaded was 0.067 ml, which results in GHSW ⁇ 270 000 h "1 :
  • Second sample [0.109g 74wt%Ce0 2 - Zr0 2 + 0.007g Fe-Beta zeolite];
  • Reference sample 0.02 g Fe beta-zeolite.
  • Feed gas composition 540 ppm NH 3 , 500 ppm NO, 10 % 0 2 , 6 % H 2 0 balance with N 2
  • the powders were thoroughly grinded in agate mortar for 10-15 min, followed by pelleti- zation. The pellets were crushed and sieved collecting 0.2 - 0.4 mm fraction for catalytic test. Similarly pelletized Fe-Beta was used as reference.
  • the catalysts were tested in the NH 3 -DeNOx in the temperature range of 150-550 °C . The test was performed under following conditions: decreasing reaction temperature with a rate of 2°C/min, feed gas composition: 500 ppm NO, 540 ppm NH 3 , 10 vol% 0 2 , 6 vol% H 2 0, balanced with N 2 to obtain a total flow of 300 mL/min.
  • Catalyst load 0.04g Fe-Beta and
  • Three samples of [10wt%Cu/Al 2 O 3 + H-zeolite] composite catalyst were prepared by thorough grinding of 10wt%Cu/Al 2 O 3 and H-Beta, H-ZSM-5, or H-ferrierite powder.
  • the first sample with 1/1 weight component ratio [0.040g 10wt%Cu/Al 2 O 3 + 0.040g H-Beta];
  • the second sample with 1/1 weight component ratio [0.040g 10wt%Cu/Al 2 O 3 + 0.040g H-ZSM-5];
  • the catalysts were tested in NH 3 -DeNO x within the temperature range of 150-550 °C. The test was performed under following conditions: decreasing reaction temperature with a rate of 2°C/min, feed gas composition: 500 ppm NO, 540 ppm NH 3 , 10 vol% 0 2 , 6 vol% H 2 0, balanced with N 2 to obtain a total flow of 300 mL/min.
  • Profiles of soot oxidation over [Ce0 2 -Zr0 2 + Fe-Beta] and Fe-Beta are displayed in Figure 7.
  • [Ce0 2 -Zr0 2 + Fe-Beta] significantly higher activity in soot oxidation then individual Fe-Beta, as evidenced by a shift of soot oxidation maximum from ⁇ 600°C for (Fe- Beta + soot) to ⁇ 420°C for ( [Ce0 2 -Zr0 2 + Fe-Beta] + soot)

Landscapes

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

Abstract

L'invention concerne une composition de catalyseur et un procédé de réduction sélective d'oxydes d'azote et d'oxydation de la suie. On fait passer un gaz d'échappement à épurer, avec de l'ammoniac ou un composé décomposable en ammoniac, sur un catalyseur qui comprend un mélange de zéolithe acide et d'un composant d'oxydo-réduction.
PCT/EP2011/005344 2011-10-24 2011-10-24 Composition de catalyseur s'utilisant dans la réduction catalytique sélective d'oxydes d'azote WO2013060341A1 (fr)

Priority Applications (14)

Application Number Priority Date Filing Date Title
MX2014004494A MX2014004494A (es) 2011-10-24 2011-10-24 Composicion de catalizador y metodo para el uso en la reduccion catalitica selectiva de oxidos de nitrogeno.
PCT/EP2011/005344 WO2013060341A1 (fr) 2011-10-24 2011-10-24 Composition de catalyseur s'utilisant dans la réduction catalytique sélective d'oxydes d'azote
US14/353,620 US9168517B2 (en) 2011-10-24 2012-05-02 Catalyst composition and method for use in selective catalytic reduction of nitrogen oxides
IN2950CHN2014 IN2014CN02950A (fr) 2011-10-24 2012-05-02
PCT/EP2012/058003 WO2013060487A1 (fr) 2011-10-24 2012-05-02 Composition de catalyseur et procédé d'utilisation dans une réduction catalytique sélective d'oxydes d'azote
CA2853154A CA2853154C (fr) 2011-10-24 2012-05-02 Composition de catalyseur et procede d'utilisation dans une reduction catalytique selective d'oxydes d'azote
KR1020147013999A KR101789114B1 (ko) 2011-10-24 2012-05-02 질소 산화물의 선택적 촉매 환원에서 사용하기 위한 촉매 조성물 및 방법
AU2012327482A AU2012327482A1 (en) 2011-10-24 2012-05-02 Catalyst composition and method for use in selective catalytic reduction of nitrogen oxides
JP2014537523A JP6112734B2 (ja) 2011-10-24 2012-05-02 触媒組成物および窒素酸化物の選択的触媒還元における使用方法
CN201280052240.5A CN103889569B (zh) 2011-10-24 2012-05-02 用于选择性催化还原氮的氧化物的催化剂组合物及方法
RU2014120917A RU2608616C2 (ru) 2011-10-24 2012-05-02 Каталитическая композиция и способ применения в селективном каталитическом восстановлении оксидов азота
BR112014008669-9A BR112014008669B1 (pt) 2011-10-24 2012-05-02 Composição de catalisador e método para utilização em reduções catalíticas de óxidos de nitrogênio
EP12721442.7A EP2771111A1 (fr) 2011-10-24 2012-05-02 Composition de catalyseur et procédé d'utilisation dans une réduction catalytique sélective d'oxydes d'azote
CL2014000993A CL2014000993A1 (es) 2011-10-24 2014-04-17 Composicion de catalizador para la reduccion selectiva de oxidos de nitrogeno y la oxidacion de hollin, que comrpende uno o mas compuestos de zeolita o zeotipo acidos, mezclados fisicamente con uno o mas compuestos de metales con actividad de redox; cuerpo estructurado monolitico; y metodo para la reduccion selectiva

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/005344 WO2013060341A1 (fr) 2011-10-24 2011-10-24 Composition de catalyseur s'utilisant dans la réduction catalytique sélective d'oxydes d'azote

Publications (1)

Publication Number Publication Date
WO2013060341A1 true WO2013060341A1 (fr) 2013-05-02

Family

ID=46085901

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/EP2011/005344 WO2013060341A1 (fr) 2011-10-24 2011-10-24 Composition de catalyseur s'utilisant dans la réduction catalytique sélective d'oxydes d'azote
PCT/EP2012/058003 WO2013060487A1 (fr) 2011-10-24 2012-05-02 Composition de catalyseur et procédé d'utilisation dans une réduction catalytique sélective d'oxydes d'azote

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/058003 WO2013060487A1 (fr) 2011-10-24 2012-05-02 Composition de catalyseur et procédé d'utilisation dans une réduction catalytique sélective d'oxydes d'azote

Country Status (11)

Country Link
JP (1) JP6112734B2 (fr)
KR (1) KR101789114B1 (fr)
CN (1) CN103889569B (fr)
AU (1) AU2012327482A1 (fr)
BR (1) BR112014008669B1 (fr)
CA (1) CA2853154C (fr)
CL (1) CL2014000993A1 (fr)
IN (1) IN2014CN02950A (fr)
MX (1) MX2014004494A (fr)
RU (1) RU2608616C2 (fr)
WO (2) WO2013060341A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104014324A (zh) * 2014-05-14 2014-09-03 华东理工大学 氧化铈基负载型烟气脱硝催化剂及其制备方法
CN104437540A (zh) * 2014-12-31 2015-03-25 安徽省元琛环保科技有限公司 一种抗磷低温scr脱硝催化剂及其制备方法
CN104525216A (zh) * 2014-12-11 2015-04-22 清华大学 用于宽温度窗口高硫条件下的脱硝催化剂及其制备方法
CN105435789A (zh) * 2014-09-09 2016-03-30 中国石油化工股份有限公司 一种Cu基甲醇合成催化剂大比表面载体的制备方法
EP3281698A1 (fr) 2016-08-11 2018-02-14 Umicore AG & Co. KG Materiau scr actif
WO2018029329A1 (fr) 2016-08-11 2018-02-15 Umicore Ag & Co. Kg Matériau actif scr présentant une stabilité thermique élevée
CN109126817A (zh) * 2018-11-07 2019-01-04 东北大学 一种铁、钨、锌改良氧化铈/氧化锰scr脱硝催化剂及其制备方法
DE102018100834A1 (de) 2018-01-16 2019-07-18 Umicore Ag & Co. Kg Verfahren zur Herstellung eines SCR-Katalysators
DE102018100833A1 (de) 2018-01-16 2019-07-18 Umicore Ag & Co. Kg Verfahren zur Herstellung eines SCR-Katalysators
CN110586176A (zh) * 2019-09-27 2019-12-20 中国环境科学研究院 一种电解锰渣基微介孔zsm-5催化剂及制备方法
CN110917829A (zh) * 2019-12-13 2020-03-27 西安润川环保科技有限公司 一种脱硫脱硝的烟气深度处理方法
CN111742121A (zh) * 2018-02-19 2020-10-02 巴斯夫公司 具有上游scr催化剂的排气处理系统
EP3791955A1 (fr) 2019-09-10 2021-03-17 Umicore Ag & Co. Kg Matériau catalytique scr contenant une zéolite au cuivre et cuivre/alumine, procédé de traitement de gaz d'échappement avec ce matériau et procédé de fabrication de ce matériau
US11008432B2 (en) 2015-10-30 2021-05-18 Blueshift Materials, Inc. Highly branched non-crosslinked aerogel, methods of making, and uses thereof
US11142622B2 (en) 2017-12-05 2021-10-12 Blueshift Materlals, Inc. Thermally treated polyamic amide aerogel
US11427693B2 (en) 2016-06-08 2022-08-30 Blueshft Materials, Inc. Polymer aerogel with improved mechanical and thermal properties

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102583157B1 (ko) * 2015-08-21 2023-09-27 바스프 코포레이션 배기 가스 처리 촉매
BR112018006174A2 (pt) * 2015-09-29 2018-10-09 Johnson Matthey Plc composição, filtro catalítico, sistema e método para tratar um gás de escape de queima pobre, usos de um filtro catalítico e de uma composição, e, métodos para melhorar a combustão de fuligem, para reduzir a suscetibilidade de um catalisador de scr contido em um filtro à deterioração, para diminuir a temperatura de combustão de fuligem, para melhorar a resistência de um catalisador de scr e para coletar material particulado do gás de escape emitido de um motor.
TW201838708A (zh) * 2017-03-02 2018-11-01 丹麥商托普索公司 用於移除來自工廠的廢氣所含有的硫氧化物和氮氧化物的方法
CN111111429A (zh) * 2019-12-16 2020-05-08 山东金城柯瑞化学有限公司 一种利用单活性中心多相催化剂技术治理乙酰呋喃氧化尾气的方法
CN111389454B (zh) * 2020-04-29 2022-09-20 陕西延长石油（集团）有限责任公司 一种合成气与甲苯制备对甲基苯甲醛的催化剂及方法
US11989661B1 (en) * 2023-07-24 2024-05-21 Morgan Stanley Services Group Inc. Dynamic rules for rules engines

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2123355A1 (fr) * 2008-05-20 2009-11-25 Ibiden Co., Ltd. Structure en nid d'abeille

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0557196A (ja) * 1991-08-29 1993-03-09 Toyota Motor Corp 排気ガス浄化用触媒の製造方法
MXPA02006446A (es) * 1999-12-28 2002-11-29 Corning Inc Composiciones de soporte de catalizador de zeolita/alumina y metodos para elaborarlas.
EP1166856B1 (fr) * 2000-06-28 2006-08-16 ICT Co., Ltd. Catalyseur pour la purification de gaz d'échappement
JP3917541B2 (ja) * 2003-03-20 2007-05-23 日産ディーゼル工業株式会社 ディーゼルエンジンの排気浄化装置
JP2006136776A (ja) * 2004-11-10 2006-06-01 Toyota Central Res & Dev Lab Inc ＮＯｘ選択還元触媒
FR2898887B1 (fr) * 2006-03-21 2008-05-02 Rhodia Recherches & Tech Composition a base d'oxyde de zirconium et d'oxyde de cerium a reductibilite elevee et a surface specifique stable procede de preparation et utilisation dans le traitement des gaz d'echappement
JP2008100152A (ja) * 2006-10-18 2008-05-01 Cataler Corp 排ガス浄化用触媒
US8802582B2 (en) * 2007-01-09 2014-08-12 Catalytic Solutions, Inc. High temperature ammonia SCR catalyst and method of using the catalyst
US7767175B2 (en) * 2007-01-09 2010-08-03 Catalytic Solutions, Inc. Ammonia SCR catalyst and method of using the catalyst
US7527776B2 (en) * 2007-01-09 2009-05-05 Catalytic Solutions, Inc. Ammonia SCR catalyst and method of using the catalyst
CA2685009C (fr) * 2007-04-26 2018-08-28 Johnson Matthey Public Limited Company Catalyseurs de scr en metal de transition/zeolite
US20090263297A1 (en) * 2007-09-19 2009-10-22 General Electric Company Catalyst and method of manufacture
CN101722059B (zh) * 2008-10-31 2011-12-21 中国石油化工股份有限公司 脱除烟气中硫和/或氮氧化物的吸附剂组合物再生方法
EP2335810B1 (fr) * 2009-12-11 2012-08-01 Umicore AG & Co. KG Réduction catalytique sélective d'oxydes d'azote dans du gaz d'échappement de moteurs diesel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2123355A1 (fr) * 2008-05-20 2009-11-25 Ibiden Co., Ltd. Structure en nid d'abeille

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104014324B (zh) * 2014-05-14 2016-08-17 华东理工大学 氧化铈基负载型烟气脱硝催化剂及其制备方法
CN104014324A (zh) * 2014-05-14 2014-09-03 华东理工大学 氧化铈基负载型烟气脱硝催化剂及其制备方法
CN105435789A (zh) * 2014-09-09 2016-03-30 中国石油化工股份有限公司 一种Cu基甲醇合成催化剂大比表面载体的制备方法
CN104525216A (zh) * 2014-12-11 2015-04-22 清华大学 用于宽温度窗口高硫条件下的脱硝催化剂及其制备方法
CN104437540A (zh) * 2014-12-31 2015-03-25 安徽省元琛环保科技有限公司 一种抗磷低温scr脱硝催化剂及其制备方法
US11787916B2 (en) 2015-10-30 2023-10-17 Blueshift Materials, Inc. Highly branched non-crosslinked aerogel, methods of making, and uses thereof
US11008432B2 (en) 2015-10-30 2021-05-18 Blueshift Materials, Inc. Highly branched non-crosslinked aerogel, methods of making, and uses thereof
US11427693B2 (en) 2016-06-08 2022-08-30 Blueshft Materials, Inc. Polymer aerogel with improved mechanical and thermal properties
US12054598B2 (en) 2016-06-08 2024-08-06 Blueshift Materials, Inc. Polymer aerogel with improved mechanical and thermal properties
WO2018029328A1 (fr) 2016-08-11 2018-02-15 Umicore Ag & Co. Kg Matériau actif scr
US10799831B2 (en) 2016-08-11 2020-10-13 Umicore Ag & Co. Kg SCR-active material
WO2018029329A1 (fr) 2016-08-11 2018-02-15 Umicore Ag & Co. Kg Matériau actif scr présentant une stabilité thermique élevée
EP3281698A1 (fr) 2016-08-11 2018-02-14 Umicore AG & Co. KG Materiau scr actif
US12152122B2 (en) 2017-12-05 2024-11-26 Blueshift Materials, Inc. Thermally treated polyamic amide aerogel
US11873379B2 (en) 2017-12-05 2024-01-16 Blueshift Materials, Inc. Thermally treated polyamic amide aerogel
US11142622B2 (en) 2017-12-05 2021-10-12 Blueshift Materlals, Inc. Thermally treated polyamic amide aerogel
US11230955B2 (en) 2018-01-16 2022-01-25 Umicore Ag & Co. Kg Method for producing an SCR catalytic converter by way of pre-drying
US11400443B2 (en) 2018-01-16 2022-08-02 Umicore Ag & Co. Kg Ultrasound-assisted method for producing an SCR catalytic converter
WO2019141718A1 (fr) 2018-01-16 2019-07-25 Umicore Ag & Co. Kg Procédé de fabrication d'un catalyseur scr par préséchage
WO2019141719A1 (fr) 2018-01-16 2019-07-25 Umicore Ag & Co. Kg Procédé de fabrication d'un catalyseur scr à l'aide d'ultrasons
DE102018100833A1 (de) 2018-01-16 2019-07-18 Umicore Ag & Co. Kg Verfahren zur Herstellung eines SCR-Katalysators
DE102018100834A1 (de) 2018-01-16 2019-07-18 Umicore Ag & Co. Kg Verfahren zur Herstellung eines SCR-Katalysators
CN111742121A (zh) * 2018-02-19 2020-10-02 巴斯夫公司 具有上游scr催化剂的排气处理系统
CN111742121B (zh) * 2018-02-19 2022-08-16 巴斯夫公司 具有上游scr催化剂的排气处理系统
CN109126817A (zh) * 2018-11-07 2019-01-04 东北大学 一种铁、钨、锌改良氧化铈/氧化锰scr脱硝催化剂及其制备方法
EP3791955A1 (fr) 2019-09-10 2021-03-17 Umicore Ag & Co. Kg Matériau catalytique scr contenant une zéolite au cuivre et cuivre/alumine, procédé de traitement de gaz d'échappement avec ce matériau et procédé de fabrication de ce matériau
CN110586176B (zh) * 2019-09-27 2020-11-17 中国环境科学研究院 一种电解锰渣基微介孔zsm-5催化剂及制备方法
CN110586176A (zh) * 2019-09-27 2019-12-20 中国环境科学研究院 一种电解锰渣基微介孔zsm-5催化剂及制备方法
CN110917829A (zh) * 2019-12-13 2020-03-27 西安润川环保科技有限公司 一种脱硫脱硝的烟气深度处理方法

Also Published As

Publication number Publication date
CA2853154C (fr) 2018-04-03
CN103889569B (zh) 2017-02-15
WO2013060487A1 (fr) 2013-05-02
RU2014120917A (ru) 2015-12-10
KR101789114B1 (ko) 2017-10-23
IN2014CN02950A (fr) 2015-07-03
KR20140095512A (ko) 2014-08-01
CL2014000993A1 (es) 2014-08-22
JP6112734B2 (ja) 2017-04-12
RU2608616C2 (ru) 2017-01-23
MX2014004494A (es) 2014-07-11
BR112014008669A2 (pt) 2017-04-18
JP2015501210A (ja) 2015-01-15
BR112014008669B1 (pt) 2019-07-02
AU2012327482A1 (en) 2014-05-15
CN103889569A (zh) 2014-06-25
CA2853154A1 (fr) 2013-05-02

Similar Documents

Publication Publication Date Title
CA2853154C (fr) Composition de catalyseur et procede d'utilisation dans une reduction catalytique selective d'oxydes d'azote
US9339800B2 (en) Methods for treating engine exhaust
US11365660B2 (en) NOx adsorber catalyst
US20170128922A1 (en) Cold Start Catalyst and Its Use in Exhaust Systems
KR20120083941A (ko) 일시적 ＮＯｘ 배출물을 처리하기 위한 촉매
JP7152401B2 (ja) 酸化バナジウムを含有するｓｃｒ触媒装置、及び鉄を含有するモレキュラーシーブ
US11358127B2 (en) NOx adsorber catalyst
GB2552072A (en) Vanadium catalysts for high engine-out NO2 systems
US9168517B2 (en) Catalyst composition and method for use in selective catalytic reduction of nitrogen oxides
JP2020514021A (ja) 酸化バナジウム及び鉄含有分子篩を収容するｓｃｒ触媒デバイス
US9527071B2 (en) SCR catalyst and method of preparation thereof
US20150231620A1 (en) IRON-ZEOLITE CHABAZITE CATALYST FOR USE IN NOx REDUCTION AND METHOD OF MAKING
GB2560926A (en) NOx adsorber catalyst
US20180065087A1 (en) Scr catalyst
KR20170063596A (ko) 열적으로 안정한 nh3-scr 촉매 조성물
KR101416356B1 (ko) 아민 화합물을 환원제로 사용한 질소산화물의 저감 방법
KR20240149386A (ko) 블렌딩된 산화물과 h-제올라이트를 갖는 scr 촉매
EP4501438A1 (fr) Système catalytique

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: 11779096

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: MX/A/2014/004494

Country of ref document: MX

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11779096

Country of ref document: EP

Kind code of ref document: A1

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载