WO2002068096A3 - Radial flow gas phase reactor and method for reducing the nitrogen oxide content of a gas - Google Patents

Radial flow gas phase reactor and method for reducing the nitrogen oxide content of a gas Download PDF

Info

Publication number
WO2002068096A3
WO2002068096A3 PCT/US2002/005293 US0205293W WO02068096A3 WO 2002068096 A3 WO2002068096 A3 WO 2002068096A3 US 0205293 W US0205293 W US 0205293W WO 02068096 A3 WO02068096 A3 WO 02068096A3
Authority
WO
WIPO (PCT)
Prior art keywords
catalyst
gas
nitrogen oxide
phase reactor
radial flow
Prior art date
Application number
PCT/US2002/005293
Other languages
French (fr)
Other versions
WO2002068096A2 (en
Inventor
Erwin M J Platvoet
Steven M Hopkins
Original Assignee
Abb Lummus Global Inc
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 Abb Lummus Global Inc filed Critical Abb Lummus Global Inc
Priority to CA002438697A priority Critical patent/CA2438697C/en
Priority to JP2002567447A priority patent/JP4576552B2/en
Priority to KR1020037011186A priority patent/KR100868955B1/en
Priority to EP02728347A priority patent/EP1379321A2/en
Priority to BRPI0207520-2A priority patent/BR0207520B1/en
Publication of WO2002068096A2 publication Critical patent/WO2002068096A2/en
Publication of WO2002068096A3 publication Critical patent/WO2002068096A3/en
Priority to NO20033759A priority patent/NO20033759L/en

Links

Classifications

    • B01J35/56—
    • 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
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • 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
    • B01D53/74—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
    • B01D53/8631—Processes characterised by a specific device
    • 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
    • B01D53/88—Handling or mounting catalysts
    • B01D53/885—Devices in general for catalytic purification of waste gases
    • 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
    • B01J35/58—
    • 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
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/0207—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly horizontal
    • B01J8/0214—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly horizontal in a cylindrical annular shaped bed
    • 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
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00796—Details of the reactor or of the particulate material
    • B01J2208/00823—Mixing elements
    • B01J2208/00831—Stationary elements
    • B01J2208/00849—Stationary elements outside the bed, e.g. baffles
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/19—Details relating to the geometry of the reactor
    • B01J2219/194—Details relating to the geometry of the reactor round
    • B01J2219/1941—Details relating to the geometry of the reactor round circular or disk-shaped
    • B01J2219/1943—Details relating to the geometry of the reactor round circular or disk-shaped cylindrical
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/19—Details relating to the geometry of the reactor
    • B01J2219/194—Details relating to the geometry of the reactor round
    • B01J2219/1941—Details relating to the geometry of the reactor round circular or disk-shaped
    • B01J2219/1946—Details relating to the geometry of the reactor round circular or disk-shaped conical

Abstract

A radial flow gas phase reactor for the selective catalytic reduction of nitrogen oxide in a gas stream includes a shell enclosing an interior space in which is located at least one catalyst bed containing a catalyst for the selective conversion of NOx. A deflector directs the flow of gas radially through the bed. An injector upstream of the catalyst introduces a reducing agent such as ammonia into the inlet gas stream. The catalyst bed can include particulate, monolith, or microengineered catalyst.
PCT/US2002/005293 2001-02-26 2002-02-22 Radial flow gas phase reactor and method for reducing the nitrogen oxide content of a gas WO2002068096A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA002438697A CA2438697C (en) 2001-02-26 2002-02-22 Radial flow gas phase reactor and method for reducing the nitrogen oxide content of a gas
JP2002567447A JP4576552B2 (en) 2001-02-26 2002-02-22 Radial flow gas phase reactor for reducing the nitrogen oxide content of gases
KR1020037011186A KR100868955B1 (en) 2001-02-26 2002-02-22 Radial flow gas phase reactor and method for reducing the nitrogen oxide content of a gas
EP02728347A EP1379321A2 (en) 2001-02-26 2002-02-22 Radial flow gas phase reactor and method for reducing the nitrogen oxide content of a gas
BRPI0207520-2A BR0207520B1 (en) 2001-02-26 2002-02-22 Radial flow gas phase reactor for chemical conversion of nitrogen oxide into a gas stream.
NO20033759A NO20033759L (en) 2001-02-26 2003-08-25 Gas phase reactor with radial flow and method for reducing the nitrogen oxide content of a gas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/793,471 2001-02-26
US09/793,471 US6663839B2 (en) 2001-02-26 2001-02-26 Radial flow gas phase reactor and method for reducing the nitrogen oxide content of a gas

Publications (2)

Publication Number Publication Date
WO2002068096A2 WO2002068096A2 (en) 2002-09-06
WO2002068096A3 true WO2002068096A3 (en) 2003-04-24

Family

ID=25159992

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/005293 WO2002068096A2 (en) 2001-02-26 2002-02-22 Radial flow gas phase reactor and method for reducing the nitrogen oxide content of a gas

Country Status (8)

Country Link
US (1) US6663839B2 (en)
EP (1) EP1379321A2 (en)
JP (1) JP4576552B2 (en)
KR (1) KR100868955B1 (en)
BR (1) BR0207520B1 (en)
CA (1) CA2438697C (en)
NO (1) NO20033759L (en)
WO (1) WO2002068096A2 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100361933B1 (en) * 1993-09-08 2003-02-14 라 졸라 파마슈티칼 컴파니 Chemically defined nonpolymeric bonds form the platform molecule and its conjugate
US6762335B1 (en) * 2000-02-29 2004-07-13 Fina Technology, Inc. Apparatus for dehydrogenation of ethylbenzene to styrene
US20030162848A1 (en) * 2000-07-25 2003-08-28 Gimpel Frederik Willem Hendrik Reactor comprising a packed bed of supported catalyst or supported catalyst precursor, and a use of the reactor
US20020159923A1 (en) * 2001-02-26 2002-10-31 Platvoet Erwin M.J. Gas phase reactor and process for reducing nitrogen oxide in a gas stream
FR2823139B1 (en) * 2001-04-05 2004-01-23 Inst Francais Du Petrole CATALYST SUPPORT WITH SECANT CHANNEL NETWORKS, CATALYST REACTOR COMPRISING SUCH SUPPORT AND METHOD FOR PRODUCING SUCH CATALYST SUPPORT
US20050249645A1 (en) * 2004-05-05 2005-11-10 Eaton Corporation Catalyst and adsorbant bed configurations suitable for mobile applications
US7682577B2 (en) 2005-11-07 2010-03-23 Geo2 Technologies, Inc. Catalytic exhaust device for simplified installation or replacement
US7682578B2 (en) 2005-11-07 2010-03-23 Geo2 Technologies, Inc. Device for catalytically reducing exhaust
US7722828B2 (en) 2005-12-30 2010-05-25 Geo2 Technologies, Inc. Catalytic fibrous exhaust system and method for catalyzing an exhaust gas
US8899020B2 (en) 2006-08-21 2014-12-02 Southwest Research Institute Apparatus and method for assisting selective catalytic reduction
KR100794390B1 (en) * 2007-01-24 2008-01-15 한국에너지기술연구원 Packed bed catalytic reactor for removal of nox by temperature controlled
US7998444B2 (en) * 2008-04-30 2011-08-16 Johnson Matthey Inc. Method of reducing nitrogen oxides in a gas stream with vaporized ammonia
FI20095735A0 (en) * 2009-06-29 2009-06-29 Ecocat Oy Puhdistinrakenne
US20120049392A1 (en) * 2010-08-25 2012-03-01 Carlos Jose Trompiz Structured Packing with Extended Contact Area
WO2013076354A1 (en) * 2011-11-25 2013-05-30 Ecocat Oy Purifier assembly
EP2623181B1 (en) * 2012-02-03 2016-04-13 Alstom Technology Ltd Arrangement for injecting a reducing agent into a flue gas
DE102015108014B3 (en) * 2015-05-20 2016-11-24 Chemisch Thermische Prozesstechnik Gmbh Process and installation for cleaning exhaust gases laden with nitrogen oxides
CN216458903U (en) * 2021-04-25 2022-05-10 西安航天源动力工程有限公司 Waste catalyst regeneration reaction furnace

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5108717A (en) * 1987-09-21 1992-04-28 Degussa Aktiengesellchaft Apparatus for the catalytic conversion of waste gases
US5358698A (en) * 1991-02-26 1994-10-25 Fina Technology, Inc. Apparatus for dehydrogenation of ethylbenzene to styrene
US5645803A (en) * 1994-04-11 1997-07-08 Scambia Industrial Developments Aktiengesellschaft Catalyst means for the catalytic treatment of exhaust gas catalytic converter
US5827485A (en) * 1989-06-16 1998-10-27 Linde Aktiengesellschaft Reactor
DE19720205A1 (en) * 1997-05-14 1998-11-19 Schedler Johannes Purification of exhaust gases charged with nitrogen oxide(s)

Family Cites Families (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2472254A (en) 1944-08-22 1949-06-07 Shell Dev Apparatus and method for carrying out catalytic reactions
US3041149A (en) 1958-08-07 1962-06-26 Oxy Catalyst Inc Catalytic muffler
US3380810A (en) * 1963-11-26 1968-04-30 Universal Oil Prod Co Catalytic converter-muffler with a protected catalyst retainer means
US3594131A (en) 1969-11-10 1971-07-20 Universal Oil Prod Co Catalytic converter
US3730691A (en) * 1971-04-26 1973-05-01 Ford Motor Co Multiple bed catalytic converter
US3733181A (en) * 1971-05-14 1973-05-15 Chemical Construction Corp Catalytic exhaust gas treatment apparatus
US3887683A (en) 1972-08-23 1975-06-03 Shinetsu Handotai Kk Method for removing nitrogen oxides from waste gases
JPS5135666A (en) * 1974-09-20 1976-03-26 Hitachi Ltd
JPS5520342Y2 (en) * 1976-02-03 1980-05-15
CA1092910A (en) 1976-07-27 1981-01-06 Ko'hei Hamabe Boiler apparatus containing denitrator
JPS5364103A (en) * 1976-09-24 1978-06-08 Hitachi Ltd Waste heat recovery boiler
US4199554A (en) 1977-01-21 1980-04-22 Kureha Kagaku Kogyo Kabushiki Kaisha Method of and apparatus for removing nitrogen oxides from the gases containing nitrogen oxides
US4160805A (en) 1977-07-14 1979-07-10 Hitachi Shipbuilding & Engineering Co. Ltd. Boiler containing denitrator
JPS5477277A (en) 1977-12-02 1979-06-20 Mitsubishi Heavy Ind Ltd Method and apparatus for reducing nitrogen oxides in combustion exhaust gas
US4246234A (en) 1978-05-26 1981-01-20 New England Power Service Company Method and apparatus for reducing nitric oxide
US4283368A (en) 1978-06-27 1981-08-11 Toyo Kogyo Co., Ltd. Radial flow catalytic converter
IT1141102B (en) 1980-11-28 1986-10-01 Ammonia Casale Sa AXIAL-RADIAL REACTOR FOR HETEROGENEOUS SYNTHESIS
FR2514413B1 (en) * 1981-10-13 1985-11-29 Inst Francais Du Petrole CATALYST POT FOR THE PURIFICATION OF EXHAUST GASES FROM AN INTERNAL COMBUSTION ENGINE
DE3228325A1 (en) 1982-07-29 1984-02-02 Fa. J. Eberspächer, 7300 Esslingen FILTER AND AFTER COMBUSTION DEVICE
US4478793A (en) 1982-09-22 1984-10-23 Uop Inc. Radial flow reactor with operating temperature profile
JPS59209631A (en) * 1983-05-13 1984-11-28 Nippon Kokan Kk <Nkk> Apparatus for removing noxious gas in exhaust gas
DE3348099C2 (en) 1983-10-03 1994-10-20 Wahlco Power Products Inc Device for preheating a stream of combustion air
DE3406657A1 (en) 1984-02-24 1985-08-29 Kraftanlagen Ag, 6900 Heidelberg METHOD AND DEVICE FOR CATALYTICALLY PURIFYING THE EXHAUST GASES FROM COMBUSTION PLANTS
DE3412870A1 (en) 1984-04-05 1985-10-17 Linde Ag, 6200 Wiesbaden METHOD AND DEVICE FOR REMOVING UNWANTED GAS-SHAPED INGREDIENTS FROM SMOKE GASES
US4682470A (en) 1984-04-17 1987-07-28 Echlin, Inc. Catalytic converter for exhaust gases
DE3430870A1 (en) 1984-08-22 1986-02-27 Didier Engineering Gmbh, 4300 Essen METHOD FOR EXHAUST GAS PURIFICATION
JPH0615015B2 (en) 1984-11-12 1994-03-02 バブコツク日立株式会社 Catalyst sampling device
US5078973A (en) 1985-01-30 1992-01-07 Babcoco-Hitachi Kabushiki Kaisha Apparatus for treating flue gas
DE3505416A1 (en) 1985-02-16 1986-08-21 Kraftanlagen Ag, 6900 Heidelberg METHOD FOR THE SELECTIVE REMOVAL OF NITROGEN OXIDS FROM EXHAUST GASES
DE3538259A1 (en) 1985-10-28 1987-04-30 Kali Chemie Ag CATALYTIC EXHAUST TREATMENT PROCESS
JPH0667453B2 (en) 1986-02-12 1994-08-31 バブコツク日立株式会社 Denitration equipment
DE3612213A1 (en) 1986-04-11 1987-10-15 Basf Ag TUBE BUNCH REACTOR, THEIR USE IN EXOTHERMAL ORGANIC REACTIONS AND METHOD FOR THE PRODUCTION OF KETONES AND ALDEHYDES WITH THE AID OF THE TUBE BUNCH REACTOR
US4830833A (en) 1986-06-12 1989-05-16 Echlin Incorporated Catalytic converter
EP0264647A1 (en) 1986-09-30 1988-04-27 Siemens Aktiengesellschaft Combustion plant with a device for decreasing nitrogen oxide in fumes
DE3736306C1 (en) 1987-10-27 1988-09-29 Didier Eng Flue gas duct for the treatment of a flue gas
DE3740289A1 (en) 1987-11-27 1989-06-08 Degussa CATALYST FOR THE SELECTIVE REDUCTION OF NITROGEN OXIDES WITH AMMONIA
DE3805791A1 (en) 1988-02-24 1989-08-31 Kraftanlagen Ag METHOD AND PLANT FOR NICKELING THE EXHAUST GAS FROM COMBUSTION PLANTS
US5047220A (en) 1989-03-27 1991-09-10 Foster Wheeler Energy Corporation Catalytic denitrification control process and system for combustion flue gases
US4961917A (en) 1989-04-20 1990-10-09 Engelhard Corporation Method for reduction of nitrogen oxides with ammonia using promoted zeolite catalysts
US5155083A (en) 1989-05-19 1992-10-13 Babcock-Hitachi Kabushiki Kaisha Catalyst for reducing nitrogen oxides and process for making the catalyst
DE4010566A1 (en) 1990-04-02 1991-10-10 Krc Umwelttechnik Gmbh METHOD FOR SEPARATING CARBONIC AND / OR NITROGENOUS POLLUTANTS IN SMOKE GASES
DK164729C (en) 1990-08-01 1992-12-28 Haldor Topsoe As PROCEDURE FOR CLEANING OF SMOKE AND WASTE GAS
CA2072604A1 (en) 1990-08-31 1992-03-01 Ljudmila N. Bobrova Process for purification of off-gases from nitrogen oxides
ATE126451T1 (en) 1992-02-14 1995-09-15 Siemens Ag METHOD AND DEVICE FOR REDUCING NITROGEN OXIDES IN FLUE GAS.
US5233934A (en) * 1992-08-20 1993-08-10 Wahlco Environmental Systems, Inc. Control of NOx reduction in flue gas flows
US5318755A (en) 1992-11-30 1994-06-07 A. Ahlstrom Corporation Method and apparatus for cleaning flue gases
DE4301760A1 (en) 1993-01-23 1994-08-11 Rothemuehle Brandt Kritzler Method and device for a regenerative heat exchanger for the treatment of pollutant-containing exhaust gases
DE4313861A1 (en) 1993-04-28 1994-11-03 Rothemuehle Brandt Kritzler Unit for nitrogen oxide decrease in furnace exhaust gases
EP0627549B1 (en) 1993-06-04 1996-08-21 Scambia Industrial Developments Aktiengesellschaft Catalytic converter for exhaust gases catalytic treatment
US5380499A (en) 1993-06-15 1995-01-10 The Babcock & Wilcox Company Combined heat exchanger and ammonia injection process
DE4423329C2 (en) 1993-06-28 1999-02-25 Mannesmann Ag Device for the purification of polluted exhaust air by heterogeneous catalysis
CZ289693B6 (en) 1994-04-11 2002-03-13 Scambia Industrial Developments Catalyst for catalytic treatment of exhaust gas
CA2154500C (en) 1994-07-28 2001-10-02 Kouzo Iida Methods of denitrating exhaust gases
US5792432A (en) * 1994-11-15 1998-08-11 Babcock-Hitachi Kabushiki Kaisha Catalyst unit and gas purifying apparatus
US5694869A (en) 1994-12-29 1997-12-09 Duquesne Light Company And Energy Systems Associates Reducing NOX emissions from a roof-fired furnace using separated parallel flow overfire air
US5603909A (en) 1995-08-03 1997-02-18 The Babcock & Wilcox Company Selective catalytic reduction reactor integrated with condensing heat exchanger for multiple pollutant capture/removal
US5575980A (en) 1995-08-14 1996-11-19 General Motors Corporation Valved radial flow catalytic converter
WO1997025134A1 (en) 1996-01-11 1997-07-17 Energy And Environmental Research Corporation IMPROVED ADVANCED REBURNING METHODS FOR HIGH EFFICIENCY NOx CONTROL
US5817282A (en) 1996-03-28 1998-10-06 Dynamotive Technologies Corporation Reduction of nitrogen oxides
US5738024A (en) 1996-04-19 1998-04-14 Winegar; Phillip Catalytic reduction apparatus for NOX reduction
AU3434797A (en) 1996-07-22 1998-02-10 Fls Miljo A/S Flue gas cleaning device with catalytic ceramic filter
US5809776A (en) 1996-07-29 1998-09-22 Outboard Marine Corporation Catalytic converter with radial outflow and by-pass valve
US5820838A (en) 1996-09-27 1998-10-13 Foster Wheeler Energia Oy Method and an apparatus for injection of NOx reducing agent
US5985222A (en) 1996-11-01 1999-11-16 Noxtech, Inc. Apparatus and method for reducing NOx from exhaust gases produced by industrial processes
US6048510A (en) 1997-09-30 2000-04-11 Coal Tech Corporation Method for reducing nitrogen oxides in combustion effluents
JPH11193909A (en) * 1997-12-31 1999-07-21 Katsuo Omori Incinerator
US5988115A (en) 1998-08-11 1999-11-23 Anderson; David K. SCR reactant injection grid
AU3520000A (en) 1999-03-09 2000-09-28 Abb Lummus Global Inc. Exhaust gas catalytic converter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5108717A (en) * 1987-09-21 1992-04-28 Degussa Aktiengesellchaft Apparatus for the catalytic conversion of waste gases
US5827485A (en) * 1989-06-16 1998-10-27 Linde Aktiengesellschaft Reactor
US5358698A (en) * 1991-02-26 1994-10-25 Fina Technology, Inc. Apparatus for dehydrogenation of ethylbenzene to styrene
US5645803A (en) * 1994-04-11 1997-07-08 Scambia Industrial Developments Aktiengesellschaft Catalyst means for the catalytic treatment of exhaust gas catalytic converter
DE19720205A1 (en) * 1997-05-14 1998-11-19 Schedler Johannes Purification of exhaust gases charged with nitrogen oxide(s)

Also Published As

Publication number Publication date
US6663839B2 (en) 2003-12-16
CA2438697A1 (en) 2002-09-06
BR0207520B1 (en) 2011-05-17
BR0207520A (en) 2004-07-27
EP1379321A2 (en) 2004-01-14
NO20033759D0 (en) 2003-08-25
JP2004524960A (en) 2004-08-19
KR100868955B1 (en) 2008-11-17
JP4576552B2 (en) 2010-11-10
NO20033759L (en) 2003-10-24
KR20040010597A (en) 2004-01-31
US20020150526A1 (en) 2002-10-17
CA2438697C (en) 2009-06-16
WO2002068096A2 (en) 2002-09-06

Similar Documents

Publication Publication Date Title
WO2002068096A3 (en) Radial flow gas phase reactor and method for reducing the nitrogen oxide content of a gas
JP3283868B2 (en) Exhaust gas purification device for diesel engine exhaust gas
US4912776A (en) Process for removal of NOx from fluid streams
EP2256313B1 (en) Exhaust emission purifying apparatus for engine
JP4960559B2 (en) Exhaust gas apparatus for selective catalytic reduction of nitrogen oxides under lean gas conditions and method for removing nitrogen oxides from lean exhaust gases of internal combustion engines
US7390471B2 (en) Apparatus and method for catalytic treatment of exhaust gases
WO2003054364A3 (en) Method and apparatus for filtering partriculate matter and selective catalytic reduction of nox
ES2147925T3 (en) PROCEDURE AND DEVICE FOR THE CATALYTIC DEPURATION OF THE EXHAUST GAS OF A COMBUSTION FACILITY.
MX2009007353A (en) Ammonia scr catalyst and method of using the catalyst.
CA2154500A1 (en) Methods of denitrating exhaust gases
EP1794421A1 (en) ENGINE EXHAUST TREATMENT HAVING DUAL NOx TRAPS
US7678348B2 (en) SCR catalytic converter without NH3 or urea injection
AU5743199A (en) Exhaust gas purification device
WO1999030811A8 (en) Method for reducing nitrogen oxides in exhaust gases containing oxygen, especially exhaust gases from internal combustion engines
WO2006083827A2 (en) Process using microwave energy and a catelyst to decompose nitrogen oxides
CN111974208A (en) Method for removing nitrous oxide in process waste gas
US8105560B2 (en) System for treating a gas stream
US5505919A (en) Method for the denitration of exhaust gas
WO2000043469A3 (en) Combined plasma reactor catalyst systems for effective emission control over a range of operating conditions
JP2011099333A (en) Exhaust emission control device
WO2002068098A3 (en) Gas phase reactor and process for reducing nitrogen oxide in a gas stream,
US20050102999A1 (en) Method for aftertreatment of exhaust gases of internal combustion engines and corresponding device
BG106486A (en) Reduction of n2o emissions
JP4652047B2 (en) Exhaust gas treatment method and urea SCR type automobile exhaust gas treatment device
CN216894596U (en) Gasoline engine tail gas aftertreatment system and vehicle thereof

Legal Events

Date Code Title Description
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2438697

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 2002728347

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2002567447

Country of ref document: JP

Ref document number: 1020037011186

Country of ref document: KR

WWP Wipo information: published in national office

Ref document number: 2002728347

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: 1020037011186

Country of ref document: KR