JPS51147470A - A process for catalytic reduction of nitrogen oxides - Google Patents

A process for catalytic reduction of nitrogen oxides

Info

Publication number
JPS51147470A
JPS51147470A JP50071229A JP7122975A JPS51147470A JP S51147470 A JPS51147470 A JP S51147470A JP 50071229 A JP50071229 A JP 50071229A JP 7122975 A JP7122975 A JP 7122975A JP S51147470 A JPS51147470 A JP S51147470A
Authority
JP
Japan
Prior art keywords
nitrogen oxides
catalytic reduction
exhaust gas
gas containing
containing oxygen
Prior art date
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
JP50071229A
Other languages
English (en)
Other versions
JPS5746890B2 (ja
Inventor
Tsugio Maejima
Eiichirou Nishikawa
Mitsuko Nakamura
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.)
Tonen General Sekiyu KK
Original Assignee
Toa Nenryo Kogyyo KK
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 Toa Nenryo Kogyyo KK filed Critical Toa Nenryo Kogyyo KK
Priority to JP50071229A priority Critical patent/JPS51147470A/ja
Priority to US05/665,946 priority patent/US4046888A/en
Publication of JPS51147470A publication Critical patent/JPS51147470A/ja
Publication of JPS5746890B2 publication Critical patent/JPS5746890B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
JP50071229A 1975-06-12 1975-06-12 A process for catalytic reduction of nitrogen oxides Granted JPS51147470A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP50071229A JPS51147470A (en) 1975-06-12 1975-06-12 A process for catalytic reduction of nitrogen oxides
US05/665,946 US4046888A (en) 1975-06-12 1976-03-11 Methods for catalytic reduction of nitrogen oxides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50071229A JPS51147470A (en) 1975-06-12 1975-06-12 A process for catalytic reduction of nitrogen oxides

Publications (2)

Publication Number Publication Date
JPS51147470A true JPS51147470A (en) 1976-12-17
JPS5746890B2 JPS5746890B2 (ja) 1982-10-06

Family

ID=13454637

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50071229A Granted JPS51147470A (en) 1975-06-12 1975-06-12 A process for catalytic reduction of nitrogen oxides

Country Status (2)

Country Link
US (1) US4046888A (ja)
JP (1) JPS51147470A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6022922A (ja) * 1983-07-20 1985-02-05 Babcock Hitachi Kk アンモニア還元脱硝触媒、装置および脱硝法
JP2016093809A (ja) * 2008-11-06 2016-05-26 ビーエーエスエフ コーポレーション 低シリカ／アルミナ比を有する菱沸石ゼオライト触媒

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60106535A (ja) * 1983-11-16 1985-06-12 Mitsubishi Heavy Ind Ltd 廃ガス処理用触媒
JPS6086380U (ja) * 1983-11-18 1985-06-14 株式会社タカラ ゲ−ム玩具
FR2568789B1 (fr) * 1984-08-13 1990-03-30 Babcock Hitachi Kk Procede de reduction-denitration par l'ammoniac et appareil pour sa mise en oeuvre
US4571329A (en) * 1984-08-13 1986-02-18 Babcock-Hitachi Kabushiki Kaisha Ammonia reduction-denitration process and apparatus therefor
DE3523326A1 (de) * 1985-06-29 1987-01-08 Steag Ag Verfahren zur abscheidung von no(pfeil abwaerts)x(pfeil abwaerts) aus gasen, insbesondere rauchgasen
US4798813A (en) * 1986-07-04 1989-01-17 Babcock-Hitachi Kabushiki Kaisha Catalyst for removing nitrogen oxide and process for producing the catalyst
DE3633493A1 (de) * 1986-10-02 1988-04-14 Metallgesellschaft Ag Verfahren zur katalytischen reduktion von no
US4867954A (en) * 1988-04-07 1989-09-19 Uop Catalytic reduction of nitrogen oxides
US4874590A (en) * 1988-04-07 1989-10-17 Uop Catalytic reduction of nitrogen oxides
EP0362966B1 (en) * 1988-10-07 1994-01-12 Sakai Chemical Industry Co., Ltd., Catalysts and methods for denitrization
DE3841990A1 (de) * 1988-12-14 1990-06-21 Degussa Verfahren zur reduktion von stickoxiden aus abgasen
WO1991006508A1 (en) * 1989-10-31 1991-05-16 Mitsubishi Jukogyo Kabushiki Kaisha Catalyst for nitrogen oxide decomposition and method of cleaning nitrogen oxide-containing exhaust gas
US5364439A (en) * 1992-04-29 1994-11-15 Union Oil Company Of California Method to treat geothermal fluid streams
EP0667181B1 (en) * 1994-02-15 2000-11-02 Tokyo Gas Co., Ltd. Method and catalyst for the purification of NOx-containing exhaust gases
DE19728701A1 (de) * 1997-07-04 1999-01-07 Metallgesellschaft Ag Verfahren zur Herstellung feinkörniger Katalysatoren aus natürlich vorkommendem Zeolith
US6347627B1 (en) 1998-04-23 2002-02-19 Pioneer Inventions, Inc. Nitrous oxide based oxygen supply system
DE10112444A1 (de) * 2001-03-13 2002-10-02 Krupp Uhde Gmbh Verfahren zur Verringerung des Gehalts von N¶2¶O und NO¶x¶ in Gasen
US7390471B2 (en) * 2005-11-17 2008-06-24 Siemens Power Generation, Inc. Apparatus and method for catalytic treatment of exhaust gases
US7998423B2 (en) * 2007-02-27 2011-08-16 Basf Corporation SCR on low thermal mass filter substrates
MX2009009095A (es) 2007-02-27 2009-09-14 Basf Catalysts Llc Catalizadores de zeolita cha de cobre.
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
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
GB2464478A (en) † 2008-10-15 2010-04-21 Johnson Matthey Plc Aluminosilicate zeolite catalyst and use thereof in exhaust gas after-treatment
RU2597090C2 (ru) * 2011-05-31 2016-09-10 Джонсон Мэтти Паблик Лимитед Компани Каталитический фильтр с двойной функцией
CN104302394A (zh) * 2012-04-11 2015-01-21 庄信万丰股份有限公司 含有金属的沸石催化剂
CA2914389C (en) * 2013-03-15 2019-11-26 3D Clean Coal Emissions Stack, Llc Cleaning stack gas
WO2015084930A1 (en) * 2013-12-03 2015-06-11 Johnson Matthey Public Limited Company Cu-cha containing scr catalyst
US10807082B2 (en) * 2014-10-13 2020-10-20 Johnson Matthey Public Limited Company Zeolite catalyst containing metals
EP3812034A1 (en) 2019-10-24 2021-04-28 Dinex A/S Durable copper-scr catalyst
EP4496654A1 (en) 2022-03-23 2025-01-29 Umicore AG & Co. KG Scr zeolite catalysts for improved nox reduction

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1596425A (ja) * 1968-12-27 1970-06-15
US3895094A (en) * 1974-01-28 1975-07-15 Gulf Oil Corp Process for selective reduction of oxides of nitrogen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6022922A (ja) * 1983-07-20 1985-02-05 Babcock Hitachi Kk アンモニア還元脱硝触媒、装置および脱硝法
JP2016093809A (ja) * 2008-11-06 2016-05-26 ビーエーエスエフ コーポレーション 低シリカ／アルミナ比を有する菱沸石ゼオライト触媒

Also Published As

Publication number Publication date
JPS5746890B2 (ja) 1982-10-06
US4046888A (en) 1977-09-06

Similar Documents

Publication Publication Date Title
JPS51147470A (en) A process for catalytic reduction of nitrogen oxides
JPS51124685A (en) Catalyst composition for feducing nox
JPS51143568A (en) A process for removing nitrogen oxides from exhaust combustion gas and a reactor for it
JPS51134370A (en) Process for removal of nitrogen oxides in exhaust gas
JPS51133833A (en) Utilization method of combustioned gas
JPS5227091A (en) Reproduction process of catalyst for removing nitrogen oxides in waste gas
JPS51137670A (en) Method for decreasing nitrogen oxides in exhaust gas
JPS5226390A (en) Oxidation catalyst used for the purification of exhaust gas
JPS51143570A (en) A method for reduction of nitrogen oxides in exhaust gas
JPS51126990A (en) Process for removing nitrogen oxides
JPS5212670A (en) Process of reducing nitrogen oxides in exhaust combustion gases
JPS5242489A (en) Nox-reduction catalyst and method of producing thereof
JPS5229470A (en) Desulfurization-denitration method
JPS51144372A (en) A process for removal of nitrogen oxides in exhaust combustion gas
JPS5220971A (en) Process for removing nitrogen oxides
JPS526369A (en) Process for decomposing nitrogen oxides
JPS53108065A (en) Treating method for gas containing ammonia
JPS5230770A (en) Process for treating nitrogen oxides in combustion gas
JPS524469A (en) Catalytic reduction process for nitrogen oxides
JPS529677A (en) Exhaust gas reducing and denitrating process
JPS51141770A (en) A dry ammonia reducing denitrification process using dust
JPS5214582A (en) Reactor having a fixed layer of catalyst
JPS5215476A (en) Process for treatment of exhaust gases containing nitrogen oxides and dust
JPS5221262A (en) Removal method of nitrogen oxide in gas
JPS5289560A (en) Removal of nitrogen oxides