BR9814858A - Composição, processo para tratar de gases com vistas a reduzir as emissões de óxido de nitrogênio, e, sistema catalìtico para o tratamento de um gás de exaustão de motores de combustão interna. - Google Patents

Composição, processo para tratar de gases com vistas a reduzir as emissões de óxido de nitrogênio, e, sistema catalìtico para o tratamento de um gás de exaustão de motores de combustão interna.

Info

Publication number
BR9814858A
BR9814858A BR9814858-3A BR9814858A BR9814858A BR 9814858 A BR9814858 A BR 9814858A BR 9814858 A BR9814858 A BR 9814858A BR 9814858 A BR9814858 A BR 9814858A
Authority
BR
Brazil
Prior art keywords
composition
exhaust gas
reduce nitrogen
treatment
internal combustion
Prior art date
Application number
BR9814858-3A
Other languages
English (en)
Inventor
Catherine Hedouin
Thierry Seguelong
Original Assignee
Rhodia Chimie Sa
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 Rhodia Chimie Sa filed Critical Rhodia Chimie Sa
Publication of BR9814858A publication Critical patent/BR9814858A/pt

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
    • 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
    • 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
    • B01J23/32—Manganese, technetium or rhenium
    • B01J23/34—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
    • B01D2255/204—Alkaline earth metals
    • B01D2255/2042—Barium
    • 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
    • B01D2255/206—Rare earth metals
    • B01D2255/2066—Praseodymium
    • 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
    • B01D2255/40—Mixed oxides
    • B01D2255/407—Zr-Ce mixed oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2235/00—Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties
    • B01J2235/15—X-ray diffraction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • 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

Landscapes

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

Abstract

"COMPOSIçãO, PROCESSO PARA TRATAR DE GASES COM VISTAS A REDUZIR AS EMISSõES DE óXIDO DE NITROGêNIO, E, SISTEMA CATALìTICO PARA O TRATAMENTO DE UM GáS DE EXAUSTãO DE MOTORES DE COMBUSTãO INTERNA" A invenção diz respeito a uma composição caracterizada em que compreende um suporte com base em óxido de cério, óxido de zircónio e óxido de escândio ou de terra rara, outros que não o cério e uma fase suportada à base de manganês e pelo menos outro elemento selecionado entre elementos alcalinos, alcalino-terrosos e de terra rara. Referida composição pode funcionar como armadilha para NOx e pode, portanto, ser utilizada em um processo de tratamento de gás para reduzir os óxidos de nitrogênio, em particular o gás de exaustão apresentando um excesso de oxigênio.
BR9814858-3A 1997-11-10 1998-11-09 Composição, processo para tratar de gases com vistas a reduzir as emissões de óxido de nitrogênio, e, sistema catalìtico para o tratamento de um gás de exaustão de motores de combustão interna. BR9814858A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9714083A FR2770790B1 (fr) 1997-11-10 1997-11-10 Composition a support a base d'un oxyde de cerium, d'un oxyde de zirconium et d'un oxyde de scandium ou de terre rare et utilisation pour le traitement des gaz d'echappement
PCT/FR1998/002392 WO1999024153A1 (fr) 1997-11-10 1998-11-09 Composition a support a base d'un oxyde de cerium, d'un oxyde de zirconium et d'un oxyde de scandium ou de terre rare et utilisation pour le traitement des gaz d'echappement

Publications (1)

Publication Number Publication Date
BR9814858A true BR9814858A (pt) 2000-10-03

Family

ID=9513206

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9814858-3A BR9814858A (pt) 1997-11-10 1998-11-09 Composição, processo para tratar de gases com vistas a reduzir as emissões de óxido de nitrogênio, e, sistema catalìtico para o tratamento de um gás de exaustão de motores de combustão interna.

Country Status (15)

Country Link
US (1) US6358880B1 (pt)
EP (1) EP1030732B1 (pt)
JP (1) JP3571292B2 (pt)
KR (1) KR100416357B1 (pt)
CN (1) CN1130247C (pt)
AT (1) ATE235304T1 (pt)
AU (1) AU1161599A (pt)
BR (1) BR9814858A (pt)
CA (1) CA2310123C (pt)
DE (1) DE69812687T2 (pt)
FR (1) FR2770790B1 (pt)
MY (1) MY133890A (pt)
NO (1) NO20002427L (pt)
WO (1) WO1999024153A1 (pt)
ZA (1) ZA9810197B (pt)

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US6506705B2 (en) * 1996-12-06 2003-01-14 Rhodia Chimie Composition based on cerium oxide or on cerium and zirconium oxides, in the extruded form, process for the preparation thereof and use thereof as catalyst
FR2771306B1 (fr) * 1997-11-25 2000-02-04 Rhodia Chimie Sa Composition a base de manganese et utilisation comme piege a nox pour le traitement de gaz d'echappement
FR2793163B1 (fr) * 1999-05-07 2001-08-10 Ecia Equip Composants Ind Auto Composition d'epuration avec traitement des nox des gaz d'echappement d'un moteur a combustion interne
JP4123644B2 (ja) * 1999-06-22 2008-07-23 トヨタ自動車株式会社 排ガス浄化触媒
FR2804102B1 (fr) * 2000-01-26 2002-08-16 Rhodia Terres Rares Dispersion colloidale aqueuse d'un compose de cerium et d'au moins un autre element choisi parmi les terres rares, des metaux de transition, l'aluminium, le gallium et le zirconium, procede de preparation et utilisation
US7081431B2 (en) * 2000-09-08 2006-07-25 Toyota Jidosha Kabushiki Kaisha NOx absorbent and absorption reduction-type NOx purifying catalyst
JP3946982B2 (ja) * 2001-11-01 2007-07-18 ニッケイ・メル株式会社 ジルコニア・セリア基複合酸化物の製造方法
JP3758601B2 (ja) * 2002-05-15 2006-03-22 トヨタ自動車株式会社 吸蔵還元型ＮＯｘ浄化用触媒
JP3528839B2 (ja) * 2002-05-15 2004-05-24 トヨタ自動車株式会社 パティキュレート酸化材及び酸化触媒
JP3797313B2 (ja) * 2002-10-28 2006-07-19 トヨタ自動車株式会社 金属酸化物粒子の製造法及び排ガス浄化用触媒
US7632477B2 (en) * 2003-04-30 2009-12-15 Magnesium Elektron, Ltd. Process for preparing zirconium oxides and zirconium-based mixed oxides
US7238640B2 (en) * 2003-12-30 2007-07-03 Ford Global Technologies, Llc Minimization of purge NOx release from NOx traps by optimizing the oxygen storage capacity
JP4165419B2 (ja) * 2004-03-09 2008-10-15 トヨタ自動車株式会社 金属酸化物粒子及び排ガス浄化触媒の製造方法
FR2867769B1 (fr) * 2004-03-17 2006-05-05 Rhodia Chimie Sa Composition a base d'oxydes de zirconium, de cerium et d'etain, preparation et utilisation comme catalyseur
CN104096594A (zh) * 2004-04-27 2014-10-15 丰田自动车株式会社 制造金属氧化物粒子的方法及废气净化用催化剂
JP4165443B2 (ja) * 2004-04-27 2008-10-15 トヨタ自動車株式会社 金属酸化物粒子の製造方法、及び排ガス浄化触媒
US7844510B2 (en) * 2005-04-05 2010-11-30 Oracle International Corporation Method and system for determining absorption costing sequences for items in a business operation
JP2008289971A (ja) * 2007-05-23 2008-12-04 Toyota Motor Corp コアシェル構造体及びその製造方法並びに当該コアシェル構造体を含む排ガス浄化用触媒
US8530372B2 (en) * 2009-07-22 2013-09-10 Basf Corporation Oxygen storage catalyst with decreased ceria reduction temperature
AU2011209829C1 (en) 2010-01-26 2016-09-01 Bloom Energy Corporation Phase stable doped zirconia electrolyte compositions with low degradation
CN102728395B (zh) * 2011-04-02 2014-05-07 中国科学院大连化学物理研究所 用于富氧气氛中还原氮氧化合物的催化剂及其制备和应用
CN103285850B (zh) * 2013-06-28 2015-04-22 河南省格林沃特净化器股份有限公司 一种雾化燃烧制备镧铈锆复合物方法
CN105983403B (zh) * 2015-02-09 2019-01-01 有研稀土新材料股份有限公司 一种铈锆复合氧化物、其制备方法及催化剂的应用
CN105214652A (zh) * 2015-11-13 2016-01-06 中国科学院重庆绿色智能技术研究院 高效Ce1-xMnxO2-δ固溶体低温脱硝催化剂的制备方法及应用
CN110360562B (zh) * 2019-08-02 2021-02-23 宁波方太厨具有限公司 燃气灶具
KR20210094641A (ko) 2019-09-04 2021-07-29 그리렘 하이-테크 캄파니 리미티드 희토류 망간/세륨 지르코늄 기재 복합 화합물 및 그 제조 방법과 응용
CN116120055B (zh) * 2022-11-25 2024-04-02 北京钢研新冶工程技术中心有限公司 一种复合铈稳定氧化锆陶瓷的制备方法和应用

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Also Published As

Publication number Publication date
NO20002427L (no) 2000-07-10
CN1130247C (zh) 2003-12-10
KR20010040270A (ko) 2001-05-15
EP1030732A1 (fr) 2000-08-30
CA2310123A1 (fr) 1999-05-20
ZA9810197B (en) 1999-05-14
EP1030732B1 (fr) 2003-03-26
MY133890A (en) 2007-11-30
JP3571292B2 (ja) 2004-09-29
FR2770790B1 (fr) 1999-12-10
US6358880B1 (en) 2002-03-19
CA2310123C (fr) 2004-10-12
DE69812687T2 (de) 2003-12-11
CN1282269A (zh) 2001-01-31
WO1999024153A1 (fr) 1999-05-20
KR100416357B1 (ko) 2004-01-31
JP2001522713A (ja) 2001-11-20
FR2770790A1 (fr) 1999-05-14
ATE235304T1 (de) 2003-04-15
NO20002427D0 (no) 2000-05-10
AU1161599A (en) 1999-05-31
DE69812687D1 (de) 2003-04-30

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Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1849 DE 13/06/2006.