NO20012588L - Katalysatorlegeme og fremgangsmåte til nedbrytning av nitrogenoksider - Google Patents

Katalysatorlegeme og fremgangsmåte til nedbrytning av nitrogenoksider

Info

Publication number
NO20012588L
NO20012588L NO20012588A NO20012588A NO20012588L NO 20012588 L NO20012588 L NO 20012588L NO 20012588 A NO20012588 A NO 20012588A NO 20012588 A NO20012588 A NO 20012588A NO 20012588 L NO20012588 L NO 20012588L
Authority
NO
Norway
Prior art keywords
decomposition
nitrogen oxides
catalyst body
catalyst
oxides
Prior art date
Application number
NO20012588A
Other languages
English (en)
Norwegian (no)
Other versions
NO20012588D0 (no
Inventor
Stefan Fischer
Frank Witzel
Guenther Pajonk
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of NO20012588D0 publication Critical patent/NO20012588D0/no
Publication of NO20012588L publication Critical patent/NO20012588L/no

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • F01N3/2066—Selective catalytic reduction [SCR]
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8628—Processes characterised by a specific catalyst
    • 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
    • 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
    • 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
    • B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
    • B01J29/16—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J29/166—Y-type faujasite
    • 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
    • B01J29/40—Crystalline 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
    • 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
    • B01J29/40—Crystalline 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
    • B01J29/48—Crystalline 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 arsenic, antimony, bismuth, vanadium, niobium tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • 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
    • B01J29/78—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J29/7815—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
    • B01D2255/207—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
    • B01D2255/20738—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
    • B01D2255/20776—Tungsten
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/50—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/92—Dimensions
    • B01D2255/9205—Porosity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/92—Dimensions
    • B01D2255/9207—Specific surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2510/00—Surface coverings
    • F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
    • F01N2510/063—Surface coverings for exhaust purification, e.g. catalytic reaction zeolites
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Toxicology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Exhaust Gas After Treatment (AREA)
NO20012588A 1998-11-25 2001-05-25 Katalysatorlegeme og fremgangsmåte til nedbrytning av nitrogenoksider NO20012588L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19854502A DE19854502A1 (de) 1998-11-25 1998-11-25 Katalysatorkörper und Verfahren zum Abbau von Stickoxiden
PCT/DE1999/003615 WO2000030746A2 (de) 1998-11-25 1999-11-12 Katalysatorkörper und verfahren zum abbau von stickoxiden

Publications (2)

Publication Number Publication Date
NO20012588D0 NO20012588D0 (no) 2001-05-25
NO20012588L true NO20012588L (no) 2001-07-24

Family

ID=7889053

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20012588A NO20012588L (no) 1998-11-25 2001-05-25 Katalysatorlegeme og fremgangsmåte til nedbrytning av nitrogenoksider

Country Status (8)

Country Link
US (1) US6569394B2 (de)
EP (1) EP1137486A2 (de)
JP (1) JP2002530190A (de)
KR (1) KR20010080539A (de)
DE (1) DE19854502A1 (de)
NO (1) NO20012588L (de)
TW (1) TW546165B (de)
WO (1) WO2000030746A2 (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6391090B1 (en) * 2001-04-02 2002-05-21 Aeronex, Inc. Method for purification of lens gases used in photolithography
US6759358B2 (en) * 2001-08-21 2004-07-06 Sud-Chemie Inc. Method for washcoating a catalytic material onto a monolithic structure
JP3994862B2 (ja) * 2002-06-17 2007-10-24 住友金属鉱山株式会社 排ガス浄化触媒及び浄化方法
US20050100494A1 (en) * 2003-11-06 2005-05-12 George Yaluris Ferrierite compositions for reducing NOx emissions during fluid catalytic cracking
FR2874075B1 (fr) * 2004-08-03 2007-11-09 Espa Sarl Tube de transport de fluide
DE102006020158B4 (de) * 2006-05-02 2009-04-09 Argillon Gmbh Extrudierter Vollkatalysator sowie Verfahren zu seiner Herstellung
JP5076192B2 (ja) * 2007-01-12 2012-11-21 国立大学法人 岡山大学 未燃カーボンを用いてディーゼルエンジン排ガス中の窒素酸化物を浄化するための触媒と方法
JP5761917B2 (ja) * 2007-02-27 2015-08-12 ビーエーエスエフ コーポレーション 選択的アンモニア酸化用の二官能性触媒
MX2009009095A (es) * 2007-02-27 2009-09-14 Basf Catalysts Llc Catalizadores de zeolita cha de cobre.
US7998423B2 (en) 2007-02-27 2011-08-16 Basf Corporation SCR on low thermal mass filter substrates
BRPI0810133B1 (pt) 2007-04-26 2023-01-17 Johnson Matthey Public Limited Company Método para converter óxidos de nitrogênio de um gás em nitrogênio, sistema de escapamento para um motor de combustão interna de queima pobre veicular, e, aparelho
GB2457651A (en) * 2008-01-23 2009-08-26 Johnson Matthey Plc Catalysed wall-flow filter
US20090196812A1 (en) 2008-01-31 2009-08-06 Basf Catalysts Llc Catalysts, Systems and Methods Utilizing Non-Zeolitic Metal-Containing Molecular Sieves Having the CHA Crystal Structure
US10583424B2 (en) 2008-11-06 2020-03-10 Basf Corporation Chabazite zeolite catalysts having low silica to alumina ratios
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
US8207084B2 (en) 2009-06-23 2012-06-26 Ford Global Technologies, Llc Urea-resistant catalytic units and methods of using the same
DE102009040352A1 (de) * 2009-09-05 2011-03-17 Johnson Matthey Catalysts (Germany) Gmbh Verfahren zur Herstellung eines SCR aktiven Zeolith-Katalysators sowie SCR aktiver Zeolith-Katalysator
US8293198B2 (en) * 2009-12-18 2012-10-23 Basf Corporation Process of direct copper exchange into Na+-form of chabazite molecular sieve, and catalysts, systems and methods
US8293199B2 (en) * 2009-12-18 2012-10-23 Basf Corporation Process for preparation of copper containing molecular sieves with the CHA structure, catalysts, systems and methods
US8529853B2 (en) 2010-03-26 2013-09-10 Umicore Ag & Co. Kg ZrOx, Ce-ZrOx, Ce-Zr-REOx as host matrices for redox active cations for low temperature, hydrothermally durable and poison resistant SCR catalysts
US8017097B1 (en) 2010-03-26 2011-09-13 Umicore Ag & Co. Kg ZrOx, Ce-ZrOx, Ce-Zr-REOx as host matrices for redox active cations for low temperature, hydrothermally durable and poison resistant SCR catalysts
EP2726180A4 (de) 2011-06-29 2015-01-07 Pq Corp Mit titandioxid imprägniertes zeolith
GB2510284B (en) 2012-08-17 2016-01-06 Johnson Matthey Plc Zeolite promoted v/ti/w catalysts
US10850262B2 (en) * 2016-12-19 2020-12-01 Khalifa University of Science and Technology Fibrous zeolite catalyst for hydrocracking
GB201716063D0 (en) * 2017-03-30 2017-11-15 Johnson Matthey Plc A catalyst for treating an exhaust gas, an exhaust system and a method
GB201705279D0 (en) 2017-03-31 2017-05-17 Johnson Matthey Plc Selective catalytic reduction catalyst
GB201705289D0 (en) 2017-03-31 2017-05-17 Johnson Matthey Catalysts (Germany) Gmbh Selective catalytic reduction catalyst
BR112021013873A2 (pt) * 2019-01-18 2021-09-14 Cummins Emission Solutions Inc. Catalisadores de rcs tratados com resistência ao enxofre melhorada
CN112156630B (zh) * 2020-10-10 2022-02-08 清华大学 一种500-900度脱硝增效方法
EP4653085A1 (de) 2024-05-24 2025-11-26 Treibacher Industrie AG Katalysatorzusammensetzung zur selektiven katalytischen reduktion

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639271A (en) * 1969-12-03 1972-02-01 Chevron Res Method for making multicomponent catalysts
US3617487A (en) * 1969-12-09 1971-11-02 Chevron Res Jet fuel production
US3928233A (en) * 1972-08-16 1975-12-23 Union Oil Co Hydrogenative conversion catalysts
US3951864A (en) * 1972-12-11 1976-04-20 Chevron Research Company Hydrocarbon conversion catalyst
US4495061A (en) * 1980-06-16 1985-01-22 Chevron Research Company Hydrocarbon conversion catalyst and process using said catalyst
JPS60106535A (ja) * 1983-11-16 1985-06-12 Mitsubishi Heavy Ind Ltd 廃ガス処理用触媒
NO167130C (no) * 1985-10-22 1991-10-09 Norton Co Katalysator for selektiv reduksjon av nitrogenoksyder.
US4663300A (en) * 1985-12-23 1987-05-05 Uop Inc. Pollution control catalyst
US4798813A (en) 1986-07-04 1989-01-17 Babcock-Hitachi Kabushiki Kaisha Catalyst for removing nitrogen oxide and process for producing the catalyst
DE3635284A1 (de) * 1986-10-16 1988-04-28 Steuler Industriewerke Gmbh Katalysator zur entfernung von stickoxiden aus abgasen
US4961917A (en) 1989-04-20 1990-10-09 Engelhard Corporation Method for reduction of nitrogen oxides with ammonia using promoted zeolite catalysts
US5071805A (en) * 1989-05-10 1991-12-10 Chevron Research And Technology Company Catalyst system for hydrotreating hydrocarbons
US5271913A (en) 1989-12-28 1993-12-21 Mitsubishi Jukogyo Kabushiki Kaisha Denitration catalyst for high-temperature exhaust gas
JP3246757B2 (ja) * 1991-11-06 2002-01-15 三菱化学株式会社 窒素酸化物除去用触媒
US5417949A (en) * 1993-08-25 1995-05-23 Mobil Oil Corporation NOx abatement process

Also Published As

Publication number Publication date
WO2000030746A2 (de) 2000-06-02
WO2000030746A3 (de) 2000-08-10
NO20012588D0 (no) 2001-05-25
US6569394B2 (en) 2003-05-27
EP1137486A2 (de) 2001-10-04
US20020004446A1 (en) 2002-01-10
KR20010080539A (ko) 2001-08-22
DE19854502A1 (de) 2000-05-31
JP2002530190A (ja) 2002-09-17
TW546165B (en) 2003-08-11

Similar Documents

Publication Publication Date Title
NO20012588D0 (no) Katalysatorlegeme og fremgangsmåte til nedbrytning av nitrogenoksider
DE69814200D1 (de) Oxydationkatalysator-System und Oxydationsverfahren
NO20001927D0 (no) Fremgangsmõte for fremstilling av hydrogen og karbonmomoksid
GB9810928D0 (en) Catalyst and process
GB0129054D0 (en) Catalytic reactor and process
DE60001387D1 (de) Verfahren und katalysator zur zersetzung von distickstoffmonoxid
GB9807142D0 (en) Catalyst and process utilising the catalyst
DE69505429D1 (de) Isoliertes Gefäss und Herstellungsverfahren
DK1084289T4 (da) Fremgangsmåde og oplösningsmiddel til kemisk rensning
GB9913331D0 (en) Treatment of exhaust gas
DE69838987D1 (de) Verfahren für die oxidation von gasförmigen halogenierten und nicht-halogenierten organischen verbindungen
DK38392A (da) Ammonia oxidation catalyst
DK33895A (da) Kalalysator-forstadier og fremgangsmåde til fremstilling heraf
AU4030799A (en) Method for the catalytic decomposition of N2O
DE69407870D1 (de) Fluorierungskatalysator und Fluorierungsverfahren
NO20001552D0 (no) Katalysator og fremgangsmåter hvor slike benyttes
AU2001287753A1 (en) Catalyst and method for the catalytic reduction of nitrogen oxides
NO20012963D0 (no) Fremgangsmåte for fremstilling av 3-alkanoylindoler og 3- alkylindoler
GB2322568B (en) Gas treatment devices
ID24070A (id) Katalis yang mengandung hologen dan proses pembuatannya
NO980403L (no) Katalytisk blanding og fremgangsmaate for fremstilling derav
DE60027550D1 (de) Farbstabiler hypochloriger entkeimer und entkeimungsverfahren
GB9410782D0 (en) The reaction of gases
ATE275347T1 (de) Dragier-produkte und herstellungsverfahren
AU1154000A (en) Process and converter for the preparation of ammonia