BRPI0416597A - catalisador de gás de exaustão - Google Patents

catalisador de gás de exaustão

Info

Publication number
BRPI0416597A
BRPI0416597A BRPI0416597-7A BRPI0416597A BRPI0416597A BR PI0416597 A BRPI0416597 A BR PI0416597A BR PI0416597 A BRPI0416597 A BR PI0416597A BR PI0416597 A BRPI0416597 A BR PI0416597A
Authority
BR
Brazil
Prior art keywords
amount
weight
exhaust gas
gas catalyst
catalyst composition
Prior art date
Application number
BRPI0416597-7A
Other languages
English (en)
Original Assignee
Treibacher Ind Ag
Porzellanfabrik Frauenthal Gmb
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 Treibacher Ind Ag, Porzellanfabrik Frauenthal Gmb filed Critical Treibacher Ind Ag
Publication of BRPI0416597A publication Critical patent/BRPI0416597A/pt
Publication of BRPI0416597B1 publication Critical patent/BRPI0416597B1/pt

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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24—Chromium, molybdenum or tungsten
    • B01J23/30—Tungsten
    • 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
    • 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
    • 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
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/063—Titanium; Oxides or hydroxides thereof
    • 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
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/20—Vanadium, niobium or tantalum
    • B01J23/22—Vanadium
    • 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
    • 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
    • B01D2255/20707—Titanium
    • 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
    • B01D2255/20723—Vanadium
    • 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
    • B01D2255/20776—Tungsten
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/30—Silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/014—Stoichiometric 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
    • 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
    • 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
    • B01J37/0236—Drying, e.g. preparing a suspension, adding a soluble salt and drying

Landscapes

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

Abstract

"CATALISADOR DE GáS DE EXAUSTãO". A presente invenção refere-se a uma composição de catalisador representada pela fórmula geral REVO/S onde RE é pelo menos um do grupo de metais terrosos raros Y, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Er e Yb em uma quantidade de até 6,0% em peso; V é vanádio em uma quantidade de 0,2-2,5 % em peso; O é oxigênio em uma quantidade de até 3,5% em peso; e S é um apoio contendo TiO~ 2~ em uma quantidade de pelo menos 70% em peso, com o resto sendo WO~ 3~ e opcionalmente SiO~ 2~. A composição de catalisador mostra eficiências de remoção altas para NO~ x~ mesmo após envelhecida a 750<198>C.
BRPI0416597-7A 2003-11-13 2004-11-12 Processo para a preparação de uma composição de catalisador, bem como a dita composição de catalisador. BRPI0416597B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ATA1831/2003 2003-11-13
AT0183103A AT412846B (de) 2003-11-13 2003-11-13 Abgaskatalysatorzusammensetzung
PCT/EP2004/012860 WO2005046864A1 (en) 2003-11-13 2004-11-12 Exhaust gas catalyst

Publications (2)

Publication Number Publication Date
BRPI0416597A true BRPI0416597A (pt) 2007-01-30
BRPI0416597B1 BRPI0416597B1 (pt) 2014-05-20

Family

ID=33569209

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0416597-7A BRPI0416597B1 (pt) 2003-11-13 2004-11-12 Processo para a preparação de uma composição de catalisador, bem como a dita composição de catalisador.

Country Status (13)

Country Link
US (1) US8716172B2 (pt)
EP (2) EP2153895A1 (pt)
KR (1) KR101121184B1 (pt)
CN (1) CN1917955B (pt)
AT (2) AT412846B (pt)
BR (1) BRPI0416597B1 (pt)
CA (1) CA2545332C (pt)
DE (1) DE602004030609D1 (pt)
DK (1) DK1682266T3 (pt)
ES (1) ES2358020T3 (pt)
MX (1) MXPA06005460A (pt)
WO (1) WO2005046864A1 (pt)
ZA (1) ZA200603717B (pt)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008221203A (ja) * 2007-02-13 2008-09-25 Babcock Hitachi Kk 窒素酸化物除去用触媒及び窒素酸化物除去方法
CN101632922B (zh) * 2008-07-25 2013-09-25 中国科学院福建物质结构研究所 高可见光催化活性钒钆氧复合氧化物催化剂及其制备方法和用途
TWI478767B (zh) 2009-04-23 2015-04-01 崔貝克工業股份有限公司 用於使廢氣進行選擇性催化還原反應之催化劑組成物
US8545796B2 (en) * 2009-07-31 2013-10-01 Cristal Usa Inc. Silica-stabilized ultrafine anatase titania, vanadia catalysts, and methods of production thereof
CN102821845B (zh) * 2010-04-16 2016-01-13 特莱巴赫工业有限公司 用于废气的选择性催化还原的催化剂组合物
JP5490074B2 (ja) 2010-12-28 2014-05-14 トヨタ自動車株式会社 三酸化硫黄分解用触媒、及び水素生成方法
JP5497688B2 (ja) 2011-05-25 2014-05-21 トヨタ自動車株式会社 三酸化硫黄分解用触媒、及び水素生成方法
SG11201501096QA (en) 2012-08-24 2015-03-30 Cristal Usa Inc Catalyst support materials, catalysts, methods of making them and uses thereof
KR101284214B1 (ko) 2012-10-04 2013-07-08 한국과학기술연구원 질소산화물 분해 촉매 및 그 제조 방법
EP2719454A1 (en) 2012-10-11 2014-04-16 Treibacher Industrie AG Thermostable Vanadia SCR catalyst and a process of preparation thereof
CN102989467B (zh) * 2012-12-13 2015-08-26 中国科学院生态环境研究中心 一种氧化钛负载型钒酸铁催化剂、制备方法及其用途
CN103263912B (zh) * 2013-05-27 2015-02-04 四川中自尾气净化有限公司 一种柴油车尾气净化催化剂及其制备方法
CN104549218B (zh) * 2013-10-28 2017-12-15 中国石油化工股份有限公司 用于低碳烷烃脱氢制烯烃的催化剂及其制备方法
CN103736497B (zh) * 2014-01-22 2016-01-27 无锡威孚力达催化净化器有限责任公司 高效处理柴油机尾气中氮氧化物的钒基scr催化剂及其制备方法
WO2016188989A1 (en) 2015-05-26 2016-12-01 Treibacher Industrie Ag Process for the preparation of titania/metal vanadate based catalyst compositions
JP7149927B2 (ja) * 2016-07-26 2022-10-07 ビーエーエスエフ コーポレーション 担持触媒、モノリス選択的接触還元（ｓｃｒ）触媒、その製造方法、及び窒素酸化物除去方法
EP3482824A1 (de) * 2017-11-14 2019-05-15 Umicore Ag & Co. Kg Scr-katalysator
CN108940299A (zh) * 2018-01-08 2018-12-07 南京东南工业装备股份有限公司 一种柴油机尾气NOx净化钒钛基催化剂及制备方法
KR102041127B1 (ko) * 2018-03-27 2019-11-27 한밭대학교 산학협력단 이산화티탄 결정상을 가지는 단일상의 수소저장용 산화물 및 이의 제조방법
CN108435196A (zh) * 2018-05-02 2018-08-24 河北国创环境科技有限公司 一种内燃机尾气净化用scr脱硝催化剂及制备方法
KR102084504B1 (ko) * 2018-07-19 2020-04-23 한국과학기술연구원 고온용 선택적 질소산화물 환원용 촉매
EP3829751A1 (en) * 2018-07-30 2021-06-09 BASF Corporation Vanadium-based selective catalytic reduction catalyst
CN110773191B (zh) * 2019-09-18 2022-09-13 上海瀚昱环保材料有限公司 脱二噁英协同脱硝的催化剂及其制备方法
CN111558394A (zh) * 2020-05-20 2020-08-21 佛山科学技术学院 一种二氧化钛介孔薄膜材料、制备方法及应用
KR102447605B1 (ko) * 2020-08-28 2022-09-28 한국에너지기술연구원 질소산화물 환원용 촉매, 이의 제조방법, 및 이의 용도
CN112717916B (zh) * 2020-12-30 2023-04-28 江苏安纳泰环保科技有限公司 一种稀土单原子负载二维片状氧化钛复合光催化材料及其制备方法和应用
CN114917898B (zh) * 2022-05-23 2024-03-15 大唐南京环保科技有限责任公司 一种适用于高温烟气的平板式脱硝催化剂及其制备方法和应用
EP4653085A1 (en) 2024-05-24 2025-11-26 Treibacher Industrie AG Catalyst composition useful for selective catalytic reduction
CN119746848B (zh) * 2024-12-30 2026-03-20 山东大学 一种硝酸改性的粉煤灰基scr催化剂及其制备方法和应用

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3513109A (en) * 1967-04-19 1970-05-19 Du Pont Process for applying catalytic coatings
US4048112A (en) 1973-09-10 1977-09-13 Mitsubishi Chemical Industries Ltd. Catalyst for selective reduction of nitrogen oxides
GB1430730A (en) 1973-09-10 1976-04-07 Mitsubishi Chem Ind Reductive decomposition of oxides of nitrogen
US4085193A (en) 1973-12-12 1978-04-18 Mitsubishi Petrochemical Co. Ltd. Catalytic process for reducing nitrogen oxides to nitrogen
DE2400850A1 (de) 1974-01-09 1975-07-24 Holstein & Kappert Maschf Verfahren und vorrichtung zum herstellen, fuellen und verschliessen von hohlkoerpern
CA1066687A (en) * 1974-04-25 1979-11-20 Alan Lauder Barium metal oxide catalytic compositions
JPS52122293A (en) * 1976-04-08 1977-10-14 Nippon Shokubai Kagaku Kogyo Co Ltd Catalyst for purifying nox
JPS5452691A (en) * 1977-10-05 1979-04-25 Nippon Steel Corp Catalyst for removing nitrogen oxides in exhaust gas
FR2481254A1 (fr) * 1980-04-23 1981-10-30 Elf Aquitaine Procede pour l'incineration catalytique de gaz residuaires renfermant en faible concentration au moins un compose du soufre choisi parmi cos, cs2, et les mercaptans et eventuellement au moins un membre du groupe forme par h2s, so2, soufre vapeur et/ou vesiculaire
JPS56168835A (en) * 1980-05-31 1981-12-25 Mitsubishi Petrochem Co Ltd Denitrating catalyst and denitrating method
JPS6090043A (ja) 1983-10-21 1985-05-21 Nippon Shokubai Kagaku Kogyo Co Ltd 窒素酸化物浄化用触媒
DE3532226A1 (de) * 1985-08-13 1987-03-19 Sued Chemie Ag Katalysator zur verringerung des stickoxidgehalts von verbrennungsabgasen
US5198403A (en) * 1989-02-28 1993-03-30 Degussa Ag Process for producing a catalyst for selective reduction of nitrous oxides with ammonia
EP0455491A3 (en) * 1990-05-03 1992-03-18 Sakai Chemical Industry Co., Ltd., Catalysts and methods for denitrization
KR960002348B1 (ko) * 1991-10-03 1996-02-16 도요다 지도오샤 가부시끼가이샤 내연기관의 배기정화장치
JP3276191B2 (ja) * 1993-01-29 2002-04-22 三菱重工業株式会社 窒素酸化物の浄化方法
US5679313A (en) * 1994-06-08 1997-10-21 Mitsubishi Jukogyo Kabushiki Kaisha Ammonia decomposition catalysts
KR0136893B1 (ko) 1994-11-03 1998-04-25 강박광 선택적 촉매환원에 의한 배기가스중의 질소산화물의 제거방법
JP3589529B2 (ja) * 1995-08-08 2004-11-17 株式会社荏原製作所 燃焼排ガスの処理方法及び装置
JPH11216361A (ja) * 1998-01-30 1999-08-10 Toshiba Corp 有機ハロゲン化合物の分解触媒、有機ハロゲン化合物の分解装置、及び有機ハロゲン化合物の分解方法
KR100314758B1 (ko) 1999-10-19 2001-11-15 이종훈 배기가스에 함유된 질소산화물 제거용 오산화바나듐계 촉매 및그 제조방법
DE10017940C2 (de) * 2000-04-11 2003-01-23 Omg Ag & Co Kg Verfahren zur Überprüfung der Funktionstüchtigkeit eines Stickoxid-Speicherkatalysators
EP1145762A1 (en) 2000-04-11 2001-10-17 dmc2 Degussa Metals Catalysts Cerdec AG Process for the preparation of a vanadia SCR-catalyst supported on titania
US6585945B2 (en) * 2001-01-26 2003-07-01 Engelhard Corporation SOx tolerant NOx trap catalysts and methods of making and using the same
DE10132890A1 (de) * 2001-07-06 2003-01-16 Daimler Chrysler Ag Feststoff und Verfahren zur Adsorption und Desorption von Stickoxiden in Abgasen von Verbrennungskraftmaschinen
EP1316354A1 (de) * 2001-11-30 2003-06-04 OMG AG &amp; Co. KG Katalysator zur Verminderung der Stickoxide im Abgas von Magermotoren
JP4317345B2 (ja) * 2002-02-26 2009-08-19 株式会社日本触媒 低濃度ｃｏ含有排ガス処理方法
US7037463B2 (en) * 2002-12-23 2006-05-02 General Electric Company Method for producing a titanium-base alloy having an oxide dispersion therein
CN1210092C (zh) * 2003-04-07 2005-07-13 华南理工大学 烟气中氮氧化物选择性还原催化剂及其制备方法和应用

Also Published As

Publication number Publication date
BRPI0416597B1 (pt) 2014-05-20
KR101121184B1 (ko) 2012-03-23
DK1682266T3 (da) 2011-03-14
CN1917955A (zh) 2007-02-21
EP2153895A1 (en) 2010-02-17
CA2545332A1 (en) 2005-05-26
WO2005046864A1 (en) 2005-05-26
EP1682266B1 (en) 2010-12-15
ATA18312003A (de) 2005-01-15
ATE491514T1 (de) 2011-01-15
CN1917955B (zh) 2011-03-09
ZA200603717B (en) 2007-11-28
DE602004030609D1 (de) 2011-01-27
US20070129241A1 (en) 2007-06-07
US8716172B2 (en) 2014-05-06
AT412846B (de) 2005-08-25
EP1682266A1 (en) 2006-07-26
MXPA06005460A (es) 2007-01-26
ES2358020T3 (es) 2011-05-04
HK1103675A1 (en) 2007-12-28
CA2545332C (en) 2012-01-17
KR20070004536A (ko) 2007-01-09

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