NO169700C - Fremgangsmaate for reduksjon av nox i utloepsgasser - Google Patents

Fremgangsmaate for reduksjon av nox i utloepsgasser

Info

Publication number
NO169700C
NO169700C NO880504A NO880504A NO169700C NO 169700 C NO169700 C NO 169700C NO 880504 A NO880504 A NO 880504A NO 880504 A NO880504 A NO 880504A NO 169700 C NO169700 C NO 169700C
Authority
NO
Norway
Prior art keywords
exhaust gas
procedure
reducing nox
zeolite
nox
Prior art date
Application number
NO880504A
Other languages
English (en)
Norwegian (no)
Other versions
NO880504L (no
NO880504D0 (no
NO169700B (no
Inventor
Sowmithri Krishnamurthy
David Andrew Pappal
John Paul Mcwilliams
Catherine Teague Sigal
Jr Thomas Richard Kiliany
Original Assignee
Mobil Oil Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21753381&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO169700(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mobil Oil Corp filed Critical Mobil Oil Corp
Publication of NO880504D0 publication Critical patent/NO880504D0/no
Publication of NO880504L publication Critical patent/NO880504L/no
Publication of NO169700B publication Critical patent/NO169700B/no
Publication of NO169700C publication Critical patent/NO169700C/no

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
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • 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
    • B01D53/38Removing components of undefined structure
    • 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
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8621Removing nitrogen compounds
    • B01D53/8625Nitrogen oxides
    • B01D53/8628Processes characterised by a specific catalyst
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/04Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/40Crystalline 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/04Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/40Crystalline 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
    • B01J29/42Crystalline 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
    • B01J29/44Noble metals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/04Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/40Crystalline 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
    • B01J29/42Crystalline 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
    • B01J29/46Iron group metals or copper
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/02Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/08Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances quartz; glass; glass wool; slag wool; vitreous enamels
    • H01B3/082Wires with glass or glass wool
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/308Wires with resins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/10After treatment, characterised by the effect to be obtained
    • B01J2229/26After treatment, characterised by the effect to be obtained to stabilize the total catalyst structure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/30After treatment, characterised by the means used
    • B01J2229/36Steaming
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/30After treatment, characterised by the means used
    • B01J2229/42Addition of matrix or binder particles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/04Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/65Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38, as exemplified by patent documents US4046859, US4016245 and US4046859, respectively
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/04Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Physics & Mathematics (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Treating Waste Gases (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Glass Compositions (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
NO880504A 1987-02-06 1988-02-04 Fremgangsmaate for reduksjon av nox i utloepsgasser NO169700C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/012,097 US4778665A (en) 1986-09-09 1987-02-06 Abatement of NOx in exhaust gases

Publications (4)

Publication Number Publication Date
NO880504D0 NO880504D0 (no) 1988-02-04
NO880504L NO880504L (no) 1988-08-08
NO169700B NO169700B (no) 1992-04-21
NO169700C true NO169700C (no) 1992-08-05

Family

ID=21753381

Family Applications (1)

Application Number Title Priority Date Filing Date
NO880504A NO169700C (no) 1987-02-06 1988-02-04 Fremgangsmaate for reduksjon av nox i utloepsgasser

Country Status (19)

Country Link
US (1) US4778665A (fi)
EP (1) EP0284181B2 (fi)
JP (1) JP2515365B2 (fi)
KR (1) KR960003151B1 (fi)
AT (1) ATE86879T1 (fi)
AU (1) AU609083B2 (fi)
BR (1) BR8800486A (fi)
CA (1) CA1311603C (fi)
DE (1) DE3879244T3 (fi)
DK (1) DK170271B1 (fi)
ES (1) ES2038748T3 (fi)
FI (1) FI85823C (fi)
GR (1) GR3007406T3 (fi)
MX (1) MX165201B (fi)
MY (1) MY100859A (fi)
NO (1) NO169700C (fi)
PT (1) PT86707B (fi)
TR (1) TR24162A (fi)
ZA (1) ZA88832B (fi)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5032284A (en) * 1989-05-01 1991-07-16 Union Oil Company Of California Process for treating ammonia and nitrite containing waters to prevent nitric oxide emissions therefrom
US4980052A (en) * 1988-12-05 1990-12-25 Mobil Oil Corporation Catalytic cracking of hydrocarbons
CA1295813C (en) * 1988-12-14 1992-02-18 Karl T. Chuang Reduction of nitrogen oxides
US5024981A (en) * 1989-04-20 1991-06-18 Engelhard Corporation Staged metal-promoted zeolite catalysts and method for catalytic reduction of nitrogen oxides using the same
JP2928853B2 (ja) * 1989-10-02 1999-08-03 東ソー株式会社 窒素酸化物接触分解触媒及び接触分解方法
US4973399A (en) * 1989-11-03 1990-11-27 Mobil Oil Corporation Catalytic cracking of hydrocarbons
US5002654A (en) * 1989-12-28 1991-03-26 Mobil Oil Corporation Reducing NOx emissions with zinc catalyst
US4986897A (en) * 1989-12-28 1991-01-22 Mobil Oil Corporation Catalytic conversion of NOx with NH3
US4988432A (en) * 1989-12-28 1991-01-29 Mobil Oil Corporation Reducing NOx emissions with antimony additive
US5120516A (en) * 1990-01-08 1992-06-09 Physical Sciences, Inc. Process for removing nox emissions from combustion effluents
US5037538A (en) * 1990-02-26 1991-08-06 Mobil Oil Corporation Catalytic cracking process with isolated catalyst for conversion of NO.sub.x
US5173278A (en) * 1991-03-15 1992-12-22 Mobil Oil Corporation Denitrification of flue gas from catalytic cracking
US5143707A (en) * 1991-07-24 1992-09-01 Mobil Oil Corporation Selective catalytic reduction (SCR) of nitrogen oxides
US5310714A (en) * 1992-07-08 1994-05-10 Mobil Oil Corp. Synthesis of zeolite films bonded to substrates, structures and uses thereof
US5316661A (en) * 1992-07-08 1994-05-31 Mobil Oil Corporation Processes for converting feedstock organic compounds
US5552128A (en) * 1993-08-03 1996-09-03 Mobil Oil Corporation Selective catalytic reduction of nitrogen oxides
US5417949A (en) * 1993-08-25 1995-05-23 Mobil Oil Corporation NOx abatement process
US5367889A (en) * 1993-08-25 1994-11-29 Lanyon; Joseph G. Exhaust treatment apparatus
US5413699A (en) * 1993-10-14 1995-05-09 Mobil Oil Corporation FCC process with fines tolerant SCR reactor
US5520895A (en) * 1994-07-07 1996-05-28 Mobil Oil Corporation Method for the reduction of nitrogen oxides using iron impregnated zeolites
US5589147A (en) * 1994-07-07 1996-12-31 Mobil Oil Corporation Catalytic system for the reducton of nitrogen oxides
US5552129A (en) * 1994-07-07 1996-09-03 Mobil Oil Corporation Catalytic system for the reduction of nitrogen oxides
US5482692A (en) * 1994-07-07 1996-01-09 Mobil Oil Corporation Selective catalytic reduction of nitrogen oxides using a ferrocene impregnated zeolite catalyst
US5451387A (en) * 1994-07-07 1995-09-19 Mobil Oil Corporation Selective catalytic reduction of nitrogen oxides using an iron impregnated zeolite catalyst
FI98926C (fi) * 1994-10-05 1997-09-10 Valtion Teknillinen Menetelmä ammoniakin poistamiseksi kaasutuskaasusta
US5565394A (en) * 1994-10-11 1996-10-15 Corning Incorporated Low expansion molecular sieves and method of making same
GB9802504D0 (en) * 1998-02-06 1998-04-01 Johnson Matthey Plc Improvements in emission control
US8833062B1 (en) 2013-03-15 2014-09-16 Daimier Ag Catalytic reduction of NOx
FR2806322B1 (fr) * 2000-03-14 2002-04-26 Abb Alstom Power Nv Utilisation de zeolithes pour reduire les emissions d'oxydes nitreux
DE10020100A1 (de) * 2000-04-22 2001-10-31 Dmc2 Degussa Metals Catalysts Verfahren und Katalysator zur Reduktion von Stickoxiden
EP1164266B1 (en) * 2000-06-13 2009-10-07 Ford Global Technologies, Inc. Method of optimizing reductant addition to an SCR catalyst coupled to an internal combustion engine
DE10123402A1 (de) * 2001-05-14 2002-11-28 Fraunhofer Ges Forschung Verfahren zum Behandeln von ammoniakhaltigen Rauchgasen
US20040074809A1 (en) * 2002-10-21 2004-04-22 George Yaluris Reduction of gas phase reduced nitrogen species in partial burn FCC processes
JP4334316B2 (ja) * 2003-10-16 2009-09-30 原子燃料工業株式会社 重ウラン酸アンモニウム粒子製造装置
US20050100494A1 (en) 2003-11-06 2005-05-12 George Yaluris Ferrierite compositions for reducing NOx emissions during fluid catalytic cracking
EP1714943B1 (en) * 2003-12-24 2016-12-07 Nuclear Fuel Industries, Ltd. Liquid stock for dropping, method for preparing liquid stock for dropping, method for preparing uranyl nitrate solution, and method for preparing polyvinyl alcohol solution
US7378069B2 (en) * 2004-07-27 2008-05-27 Los Alamos National Security, Llc Catalyst and method for reduction of nitrogen oxides
CA2575338C (en) * 2004-07-27 2015-09-01 Los Alamos National Security, Llc Catalyst and method for reduction of nitrogen oxides
US7918991B2 (en) * 2005-04-27 2011-04-05 W. R. Grace & Co.-Conn. Compositions and processes for reducing NOx emissions during fluid catalytic cracking
JP5345386B2 (ja) 2005-04-29 2013-11-20 ダブリュー・アール・グレイス・アンド・カンパニー−コネチカット 部分燃焼FCC法で使用するNOx低減用組成物
US7914666B1 (en) * 2006-09-29 2011-03-29 Uop Llc Low NOx FCC catalyst regeneration process
DE102007022678A1 (de) 2007-05-11 2008-11-13 Hydraulik-Ring Gmbh Abgasnachbehandlungseinheit auf Ammoniakbasis und Verfahren zur Reinigung stickoxidhaltiger Abgase von Verbrennungskraftmaschinen
FR2945962B1 (fr) * 2009-05-29 2012-06-08 Peugeot Citroen Automobiles Sa Dispositif, vehicule comportant ce dispositif et procede de traitement des gaz d'echappement
EP2308596B1 (en) 2009-10-07 2016-09-21 Ford Global Technologies, LLC Cu/zeolite SCR catalyst for NOx reduction in exhaust gases and manufacture method thereof
CA2865393C (en) 2012-02-23 2021-03-16 Johnson Matthey Process Technologies, Inc. Process of removing nox from flue gas
KR102144327B1 (ko) 2013-02-22 2020-08-14 존슨 맛세이 프로세스 테크놀로지즈 인코퍼레이티드 연도 가스로부터 hcn의 제거방법
US8850802B1 (en) 2013-03-15 2014-10-07 Daimler Ag Catalytic reduction of NOx
GB201608643D0 (en) * 2016-05-17 2016-06-29 Thermo Fisher Scient Bremen Elemental analysis system and method
WO2024052387A1 (en) * 2022-09-06 2024-03-14 Umicore Ag & Co. Kg Catalytic system and method for the removal of hcn from off-gases of a fluid cracking unit using same, and fcc unit assembly including the catalytic system

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3476508A (en) * 1965-10-27 1969-11-04 Exxon Research Engineering Co Catalytic purification treatment of exhaust gas
FR1596425A (fi) * 1968-12-27 1970-06-15
US3900554A (en) * 1973-03-16 1975-08-19 Exxon Research Engineering Co Method for the reduction of the concentration of no in combustion effluents using ammonia
JPS5437591B2 (fi) * 1975-03-08 1979-11-15
US3895094A (en) * 1974-01-28 1975-07-15 Gulf Oil Corp Process for selective reduction of oxides of nitrogen
US4220632A (en) * 1974-09-10 1980-09-02 The United States Of America As Represented By The United States Department Of Energy Reduction of nitrogen oxides with catalytic acid resistant aluminosilicate molecular sieves and ammonia
JPS5169476A (fi) * 1974-12-13 1976-06-16 Toray Industries
US4104361A (en) * 1975-03-28 1978-08-01 Exxon Research & Engineering Co. Catalyst for reduction of nitrogen oxides and process for preparing the same
US4199555A (en) * 1975-07-16 1980-04-22 Toa Nenryo Kogyo Kabushiki Kaisha Catalyst for reducing nitrogen oxides
US4043939A (en) * 1975-10-10 1977-08-23 Kurashiki Boseki Kabushiki Kaisha Reactivation of catalysts useful for nitrogen oxide removal
US4473535A (en) * 1976-01-26 1984-09-25 Northeast Utilities Service Company Process for reducing nitric oxides
US4064888A (en) * 1977-02-07 1977-12-27 Moyer Diebel Limited Vent structure for dishwashers
US4157375A (en) * 1977-12-02 1979-06-05 Engelhard Minerals & Chemicals Corporation Conversion of nitrogen oxides
JPS5477277A (en) * 1977-12-02 1979-06-20 Mitsubishi Heavy Ind Ltd Method and apparatus for reducing nitrogen oxides in combustion exhaust gas
CA1110829A (en) * 1978-03-30 1981-10-20 Gerald M. Woltermann Conversion of nitrogen oxides
US4268488A (en) * 1979-05-10 1981-05-19 Uop Inc. Process for the catalytic reduction of nitrogen oxides in gaseous mixtures
US4297328A (en) * 1979-09-28 1981-10-27 Union Carbide Corporation Three-way catalytic process for gaseous streams
US4434147A (en) * 1981-10-05 1984-02-28 Chevron Research Company Simultaneous sulfur oxide and nitrogen oxide control in FCC units using cracking catalyst fines with ammonia injection
JPS59230642A (ja) * 1983-06-15 1984-12-25 Toyo Soda Mfg Co Ltd 選択的還元脱硝触媒及びそれを使用するガスの脱硝方法
JPS60106535A (ja) * 1983-11-16 1985-06-12 Mitsubishi Heavy Ind Ltd 廃ガス処理用触媒
EP0217480B1 (en) * 1985-08-08 1990-09-19 Mobil Oil Corporation Abatement of nox in exhaust gases
JPH07114964B2 (ja) * 1986-07-04 1995-12-13 バブコツク日立株式会社 窒素酸化物還元用触媒およびその製造方法

Also Published As

Publication number Publication date
BR8800486A (pt) 1988-09-27
US4778665A (en) 1988-10-18
NO880504L (no) 1988-08-08
DK170271B1 (da) 1995-07-24
DK58888D0 (da) 1988-02-05
DE3879244D1 (de) 1993-04-22
JP2515365B2 (ja) 1996-07-10
MY100859A (en) 1991-03-15
EP0284181B1 (en) 1993-03-17
MX165201B (es) 1992-10-30
TR24162A (tr) 1991-05-01
EP0284181B2 (en) 2002-03-06
ATE86879T1 (de) 1993-04-15
ZA88832B (en) 1989-10-25
PT86707B (pt) 1992-04-30
CA1311603C (en) 1992-12-22
DE3879244T2 (de) 1993-06-24
FI85823B (fi) 1992-02-28
DK58888A (da) 1988-08-07
EP0284181A1 (en) 1988-09-28
AU1090588A (en) 1988-08-11
JPS6456125A (en) 1989-03-03
AU609083B2 (en) 1991-04-26
KR960003151B1 (en) 1996-03-05
FI85823C (fi) 1992-06-10
PT86707A (pt) 1988-03-01
NO880504D0 (no) 1988-02-04
ES2038748T3 (es) 1993-08-01
KR880009691A (ko) 1988-10-04
GR3007406T3 (fi) 1993-07-30
NO169700B (no) 1992-04-21
FI880542A (fi) 1988-08-07
FI880542A0 (fi) 1988-02-05
DE3879244T3 (de) 2002-11-07

Similar Documents

Publication Publication Date Title
NO169700C (no) Fremgangsmaate for reduksjon av nox i utloepsgasser
ES2054957T3 (es) Procedimiento para la reduccion de oxidos de nitrogeno contenidos en gases de escape mediante un catalizador conteniendo zeolita.
DE3667248D1 (de) Katalysator zur verringerung des stickoxidgehalts von verbrennungsabgasen.
ES2060917T3 (es) Procedimiento para la reduccion de oxidos nitricos contenidos en gases de escape.
BR8904438A (pt) Catalisador para gases de escapamento,tendo uma tendencia reduzida para acumular oxidos de nexofre e para emitir acido sulfidrico
ATE45682T1 (de) Eisenhaltiger katalysator zur verringerung des stickoxidgehalts von verbrennungsabgasen.
BR8502892A (pt) Processo para sintetizacao de zeolito zsm-12,e para efetuar conversao catalitica de carga de alimentacao contendo composto organico
ATE26413T1 (de) Katalysator fuer die behandlung von abgasen.
ATE105732T1 (de) Katalysator zur reinigung von abgasen, verfahren zur herstellung und verwendung des katalysators.
DE59503759D1 (de) Sorptionskatalysator zur sorptiven und oxidativen Reinigung der Abgase von Dieselmotoren
NO862711D0 (no) Katalysator for nedsettelse av nitrogeninnholdet i forbrenningsgasser.
ATE75969T1 (de) Verfahren zur katalytischen reduktion von stickoxiden.
ATE278454T1 (de) Katalysator zur reduktion von nox in verbrennungsabgasen
HUP9904522A2 (hu) Katalizátorok elsősorban NOx redukálására és eljárás NOx redukálására
ATE222796T1 (de) Verfahren zur katalytischen reduktion von stickoxiden
JPS57119838A (en) Production of palladium catalyst
JPS52115790A (en) Catalysts with low temperature activity for use in denitration for exh aust gas
ATE46091T1 (de) Verwendung von katalysatoren zur stickoxidentfernung aus abgasen.
LTIP295A (lt) Nitrozinių dujų išlakų oksidinimo būdas
BR8500709A (pt) Processo para modificacao da atividade catalitica de zeolitos cristalinos e processo para conversao de uma carga de compostos organicos