FR2223072A1 - - Google Patents

Info

Publication number
FR2223072A1
FR2223072A1 FR7409945A FR7409945A FR2223072A1 FR 2223072 A1 FR2223072 A1 FR 2223072A1 FR 7409945 A FR7409945 A FR 7409945A FR 7409945 A FR7409945 A FR 7409945A FR 2223072 A1 FR2223072 A1 FR 2223072A1
Authority
FR
France
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7409945A
Other versions
FR2223072B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Publication of FR2223072A1 publication Critical patent/FR2223072A1/fr
Application granted granted Critical
Publication of FR2223072B1 publication Critical patent/FR2223072B1/fr
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/847Vanadium, niobium or tantalum or polonium
    • B01J23/8472Vanadium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/92Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404Removing only nitrogen compounds
    • B01D53/9409Nitrogen oxides
    • B01D53/9413Processes characterised by a specific catalyst
    • B01D53/9418Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16Catalysts 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
    • B01J23/20Vanadium, niobium or tantalum
    • B01J23/22Vanadium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16Catalysts 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
    • B01J23/24Chromium, molybdenum or tungsten
    • B01J23/26Chromium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/20Reductants
    • B01D2251/206Ammonium compounds
    • B01D2251/2062Ammonia
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20707Titanium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20723Vanadium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20738Iron
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20746Cobalt
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20753Nickel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20761Copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20784Chromium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/209Other metals
    • B01D2255/2094Tin

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)
FR7409945A 1973-03-26 1974-03-22 Expired FR2223072B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3484573A JPS5523086B2 (fr) 1973-03-26 1973-03-26

Publications (2)

Publication Number Publication Date
FR2223072A1 true FR2223072A1 (fr) 1974-10-25
FR2223072B1 FR2223072B1 (fr) 1978-01-06

Family

ID=12425513

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7409945A Expired FR2223072B1 (fr) 1973-03-26 1974-03-22

Country Status (6)

Country Link
US (1) US4010238A (fr)
JP (1) JPS5523086B2 (fr)
DE (1) DE2414333C3 (fr)
FR (1) FR2223072B1 (fr)
GB (1) GB1466789A (fr)
IT (1) IT1024532B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0271919A2 (fr) * 1986-12-19 1988-06-22 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Catalyseur, son procédé de fabrication et application dans la réduction des oxydes d'azote
EP0382644A1 (fr) * 1989-02-10 1990-08-16 Centre National De La Recherche Scientifique (Cnrs) Procédé de réduction catalytique de composés azotés et catalyseurs utilisés
EP0524035A1 (fr) * 1991-06-17 1993-01-20 Institut De Catalyse Du Departement Siberien De L'academie Des Sciences De Russie Catalyseur et procédé de traitement de gaz contenant des composés soufrés

Families Citing this family (71)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS545388B2 (fr) * 1973-04-10 1979-03-16
JPS503991A (fr) * 1973-04-18 1975-01-16
JPS5427839B2 (fr) * 1973-09-10 1979-09-12
JPS542912B2 (fr) * 1973-09-10 1979-02-15
GB1430730A (en) * 1973-09-10 1976-04-07 Mitsubishi Chem Ind Reductive decomposition of oxides of nitrogen
US4170572A (en) * 1973-10-18 1979-10-09 Union Carbide Corporation Oxidation catalyst prepared with NH3
US4085193A (en) * 1973-12-12 1978-04-18 Mitsubishi Petrochemical Co. Ltd. Catalytic process for reducing nitrogen oxides to nitrogen
JPS6243736B2 (fr) * 1974-03-29 1987-09-16 Mitsubishi Yuka Kk
US4056600A (en) * 1974-06-03 1977-11-01 Gennady Alexeevich Skvortsov Method of selective catalytic purification of waste gases from nitrogen oxides
JPS5132479A (en) * 1974-09-13 1976-03-19 Asahi Glass Co Ltd Chitsusosankabutsu no shorihoho
JPS5181776A (ja) * 1975-01-13 1976-07-17 Mitsubishi Chem Ind Nenshohaigasunodatsushohoho
JPS5246558B2 (fr) * 1975-02-17 1977-11-25
JPS5621469B2 (fr) * 1975-02-25 1981-05-19
JPS585703B2 (ja) * 1975-05-19 1983-02-01 株式会社日本触媒 チツソサンカブツジヨキヨヨウシヨクバイ
JPS5823136B2 (ja) * 1975-07-23 1983-05-13 三井化学株式会社 排ガス中の窒素酸化物の除去方法
JPS6052856B2 (ja) * 1975-09-05 1985-11-21 株式会社神戸製鋼所 固定燃焼装置よりの排ガス中に含まれる窒素酸化物の除去法
US4131643A (en) * 1975-09-05 1978-12-26 Kobe Steel Limited Catalyst for converting nitrogen oxides and method for converting nitrogen oxides in exhaust gases by using said catalyst
JPS5231969A (en) * 1975-09-05 1977-03-10 Kobe Steel Ltd Removing method of nitrogen oxide contained in waste gas from fixed bu rning eqipment
FR2327814A1 (fr) * 1975-10-15 1977-05-13 Hitachi Ltd Procede pour traiter par catalyse un gaz d'echappement renfermant de l'ammoniac gazeux et de l'oxygene gazeux.
US4096184A (en) * 1976-01-19 1978-06-20 Sumitomo Chemical Company, Limited Process for preparing acid amides
US4140654A (en) * 1976-04-16 1979-02-20 Mitsui Petrochemical Industries Ltd. Catalyst composition with support comprising titanium oxide and clay mineral for vapor phase reduction of nitrogen oxides
US4188365A (en) * 1976-04-16 1980-02-12 Mitsui Petrochemical Industries, Ltd. Process for catalytic vapor phase reduction of nitrogen oxides and catalyst composition used therefor
JPS52147587A (en) * 1976-06-02 1977-12-08 Ishikawajima Harima Heavy Ind Co Ltd No# removal catalyst
US4186109A (en) * 1976-09-30 1980-01-29 Mitsubishi Jukogyo Kabushiki Kaisha Catalyst for selectively reducing nitrogen oxides from oxygen-containing exhaust gases
JPS5456072A (en) * 1977-10-13 1979-05-04 Kawasaki Heavy Ind Ltd Denitrating method for exhaust combustion gas
US4229374A (en) * 1977-10-17 1980-10-21 Shell Oil Company Amine process using Cu-Sn-Na catalyst
US4234461A (en) * 1978-03-30 1980-11-18 Standard Oil Company (Ohio) Oxidation catalysts
US4293443A (en) * 1978-03-30 1981-10-06 Standard Oil Company Oxidation catalysts
US4225465A (en) * 1978-05-02 1980-09-30 Standard Oil Company (Ohio) Production of maleic anhydride from four-carbon hydrocarbons using catalysts prepared by hydrothermal techniques
IT1193930B (it) * 1980-04-02 1988-08-31 Alusuisse Italia Spa Catalizzatore per la fabbricazione di anidride ftalica
JPS57133339A (en) * 1981-02-10 1982-08-18 Shimadzu Corp Infrared rays system so2 analyzer
JPS58128127A (ja) * 1982-09-22 1983-07-30 Mitsubishi Kakoki Kaisha Ltd 排ガスから窒素酸化物を除去する方法
US4975256A (en) * 1988-06-09 1990-12-04 W. R. Grace & Co.-Conn. Process using catalysts for selective catalytic reduction denox technology
US4929586A (en) * 1988-06-09 1990-05-29 W. R. Grace & Co.-Conn. Catalysts for selective catalytic reduction DeNOx technology
US4962075A (en) * 1988-12-05 1990-10-09 Mobil Oil Corp. Zeolitic copper catalyst
JP2001509432A (ja) 1997-07-10 2001-07-24 エス ケー コーポレイション 窒素酸化物の除去のための選択的触媒還元及びその触媒体
JP3643676B2 (ja) * 1997-07-16 2005-04-27 三菱重工業株式会社 ボイラ排ガスの油田への圧入方法
RU2179954C1 (ru) * 2000-06-22 2002-02-27 Стремилова Нина Николаевна Композиция для очистки природных и сточных вод и способ получения композиции для очистки природных и сточных вод (варианты)
WO2008020535A1 (fr) * 2006-08-15 2008-02-21 Idemitsu Kosan Co., Ltd. Procédé de décomposition de monoxyde de diazote
WO2008094889A1 (fr) * 2007-01-31 2008-08-07 Basf Catalysts Llc Catalyseurs de gaz comprenant des nids d'abeilles à paroi poreuse
US8524185B2 (en) 2008-11-03 2013-09-03 Basf Corporation Integrated SCR and AMOx catalyst systems
CN102959191B (zh) 2010-05-05 2015-05-13 巴斯夫公司 催化烟灰过滤器以及排放物处理系统和方法
US8293182B2 (en) 2010-05-05 2012-10-23 Basf Corporation Integrated SCR and AMOx catalyst systems
EP3140038A1 (fr) 2014-05-09 2017-03-15 Johnson Matthey Public Limited Company Catalyseur de conversion d'ammoniac dans lequel du platine est imprégné sur des substrats de porosité élevée
DE102015209987A1 (de) 2014-06-04 2015-12-10 Johnson Matthey Public Limited Company Nicht-PGM-Ammoniakschlupfkatalysator
US9649596B2 (en) 2014-07-02 2017-05-16 Johnson Matthey Public Limited Company Perovskite with an ovlerlayer SCR component as an ammonia oxidation catalyst and a system for exhaust emission control on diesel engines
JP7249099B2 (ja) 2014-11-19 2023-03-30 ジョンソン、マッセイ、パブリック、リミテッド、カンパニー 低温排出制御のためのscrとpnaの組み合わせ
JP5869169B1 (ja) * 2015-06-01 2016-02-24 公立大学法人大阪府立大学 酸素発生反応用ペロブスカイト酸化物触媒
GB2541500B (en) 2015-06-18 2019-06-26 Johnson Matthey Plc NH3 overdosing-tolerant SCR catalyst
US10201807B2 (en) 2015-06-18 2019-02-12 Johnson Matthey Public Limited Company Ammonia slip catalyst designed to be first in an SCR system
GB2543600B (en) 2015-06-18 2019-10-09 Johnson Matthey Plc Zoned exhaust system
US20160367975A1 (en) 2015-06-18 2016-12-22 Johnson Matthey Public Limited Company Ammonia slip catalyst with low n2o formation
KR20180020215A (ko) 2015-06-18 2018-02-27 존슨 맛쎄이 퍼블릭 리미티드 컴파니 단일 또는 이중 층 암모니아 슬립 촉매
US9937489B2 (en) 2015-06-18 2018-04-10 Johnson Matthey Public Limited Company Exhaust system without a DOC having an ASC acting as a DOC in a system with an SCR catalyst before the ASC
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.
US10105692B2 (en) 2015-09-29 2018-10-23 Johnson Matthey Public Limited Company Zoned ammonia slip catalyst for use in combustion turbines
DE102017122001A1 (de) 2016-09-22 2018-03-22 Johnson Matthey Public Limited Company Ruthenium, geträgert auf trägern, die eine rutilphase aufweisen, als stabile katalysatoren für nh3-slip-anwendungen
CN110100080B (zh) 2016-10-24 2022-05-24 巴斯夫公司 用于减少NOx的集成SCR催化剂和LNT
GB2556453A (en) 2016-10-26 2018-05-30 Johnson Matthey Plc Hydrocarbon injection through small pore CU-zeolite catalyst
GB2562161A (en) 2017-03-20 2018-11-07 Johnson Matthey Plc Rear on-wall design SCRF
GB2562160B (en) 2017-03-20 2021-06-23 Johnson Matthey Plc Catalytic wall-flow filter with an ammonia slip catalyst
WO2019042911A1 (fr) 2017-08-29 2019-03-07 Rhodia Operations Utilisation d'un oxyde mixte pour absorber le nox
KR20200112891A (ko) 2018-02-19 2020-10-05 바스프 코포레이션 업스트림 scr 촉매를 갖는 배기 가스 처리 시스템
US11779913B2 (en) 2018-03-14 2023-10-10 Johnson Matthey Public Limited Company Ammonia slip catalyst with in-situ PT fixing
WO2020038222A1 (fr) 2018-08-24 2020-02-27 Rhodia Operations Zéolite cristalline microporeuse d'aluminotitanosilicate, son procédé de préparation et ses applications
US20230035318A1 (en) 2019-12-10 2023-02-02 Johnson Matthey Public Limited Company Zoned ammonia slip catalyst for improved selectivity, activity and poison tolerance
WO2021126935A1 (fr) 2019-12-19 2021-06-24 Basf Corporation Système de traitement d'échappement pour véhicules alimentés par ammoniac
BR112022014342A2 (pt) 2020-03-31 2022-09-13 Johnson Matthey Plc Artigo catalítico, e, sistema de exaustão
WO2022167431A1 (fr) 2021-02-02 2022-08-11 Basf Corporation Système de traitement de gaz d'échappement pour réduire les émissions d'ammoniac provenant d'applications d'essence mobile
WO2023244279A1 (fr) 2022-06-17 2023-12-21 Basf Corporation Système de traitement d'échappement pour véhicules alimentés par de l'ammoniac
EP4378566A1 (fr) 2022-11-29 2024-06-05 Johnson Matthey Public Limited Company Filtre catalytique à écoulement sur paroi amélioré

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB662460A (en) * 1949-02-17 1951-12-05 Dirk Willem Van Krevelen Process for the removal of carbon monoxide from a gas mixture containing carbon monoxide and nitric oxide
US3008796A (en) * 1958-06-05 1961-11-14 Engelhard Ind Inc Method of purifying gases containing oxygen and oxides of nitrogen
US3249558A (en) * 1962-08-31 1966-05-03 Exxon Research Engineering Co Method for the preparation of vanadium catalysts
DE1253685B (de) * 1963-01-22 1967-11-09 Degussa Verfahren zur Entfernung von Stickstoffoxyden aus stickstoffoxydhaltigen Abgasen
US3279884A (en) * 1963-10-31 1966-10-18 Basf Ag Selective removal of oxides of nitrogen from gas mixtures containing oxygen
DE1259298B (de) * 1964-08-29 1968-01-25 Hamburger Gaswerke Gmbh Verfahren zur Entfernung von Stickoxyden aus Gasen durch katalytische Reduktion derselben zu Stickstoff
US3476508A (en) * 1965-10-27 1969-11-04 Exxon Research Engineering Co Catalytic purification treatment of exhaust gas
US3449063A (en) * 1966-05-13 1969-06-10 Ethyl Corp Method of controlling exhaust emission
FR1504331A (fr) * 1966-11-29 1967-12-01 Hamburger Gaswerke Gmbh Procédé pour l'élimination d'oxydes d'azote à partir de tous les gaz
US3513109A (en) * 1967-04-19 1970-05-19 Du Pont Process for applying catalytic coatings
DE1135430B (de) * 1969-06-16 1962-08-30 Engelhard Ind Inc Verfahren zur selektiven Reduktion von Oxyden des Stickstoffs in Abgasgemischen, diebei der Herstellung von Salpetersaeure aus Ammoniak anfallen
GB1390182A (en) * 1971-03-16 1975-04-09 Johnson Matthey Co Ltd Catalysis
JPS5432753B2 (fr) * 1971-11-22 1979-10-16
JPS48101975A (fr) * 1972-04-05 1973-12-21
GB1438120A (en) * 1972-09-01 1976-06-03 Exxon Research Engineering Co Removal of nitrogen oxides from flue gas
CA1002732A (en) * 1972-12-27 1977-01-04 Neville L. Cull Removal of nitrogen oxides using coated catalyst
NL7805366A (nl) * 1978-05-18 1979-11-20 Philips Nv Gereedschap voor de hantering en vormgeving van glas.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0271919A2 (fr) * 1986-12-19 1988-06-22 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Catalyseur, son procédé de fabrication et application dans la réduction des oxydes d'azote
EP0271919A3 (en) * 1986-12-19 1989-03-15 Dr. C. Otto Feuerfest Gmbh Catalyst, process for its production and its use in reducing nitrogen oxides
EP0382644A1 (fr) * 1989-02-10 1990-08-16 Centre National De La Recherche Scientifique (Cnrs) Procédé de réduction catalytique de composés azotés et catalyseurs utilisés
FR2642987A1 (fr) * 1989-02-10 1990-08-17 Centre Nat Rech Scient Reduction catalytique de composes azotes
EP0524035A1 (fr) * 1991-06-17 1993-01-20 Institut De Catalyse Du Departement Siberien De L'academie Des Sciences De Russie Catalyseur et procédé de traitement de gaz contenant des composés soufrés

Also Published As

Publication number Publication date
US4010238A (en) 1977-03-01
JPS49122473A (fr) 1974-11-22
DE2414333C3 (de) 1981-09-10
DE2414333A1 (de) 1974-10-03
IT1024532B (it) 1978-07-20
DE2414333B2 (de) 1980-11-13
FR2223072B1 (fr) 1978-01-06
GB1466789A (en) 1977-03-09
JPS5523086B2 (fr) 1980-06-20

Similar Documents

Publication Publication Date Title
FR2254367B1 (fr)
FR2223072B1 (fr)
AU476761B2 (fr)
AU474593B2 (fr)
AU474511B2 (fr)
AU474838B2 (fr)
AU471343B2 (fr)
AU476714B2 (fr)
FR2225196B1 (fr)
AR201229Q (fr)
AU476696B2 (fr)
AU466283B2 (fr)
AU472848B2 (fr)
AU471461B2 (fr)
CH560927A5 (fr)
AU479539A (fr)
AU479453A (fr)
CH562060A5 (fr)
CH560852A5 (fr)
CH560552A5 (fr)
CH559097A5 (fr)
CH545696A (fr)
CH241773A4 (fr)
BG20203A1 (fr)
BG20177A1 (fr)