DE69125649T2 - Verfahren zum Entfernen von Stickoxiden aus Abgasen - Google Patents

Verfahren zum Entfernen von Stickoxiden aus Abgasen

Info

Publication number
DE69125649T2
DE69125649T2 DE69125649T DE69125649T DE69125649T2 DE 69125649 T2 DE69125649 T2 DE 69125649T2 DE 69125649 T DE69125649 T DE 69125649T DE 69125649 T DE69125649 T DE 69125649T DE 69125649 T2 DE69125649 T2 DE 69125649T2
Authority
DE
Germany
Prior art keywords
exhaust gases
nitrogen oxides
removing nitrogen
oxides
gases
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.)
Expired - Lifetime
Application number
DE69125649T
Other languages
English (en)
Other versions
DE69125649D1 (de
Inventor
Yoshiaki Kintaichi
Hideaki Hamada
Takehiko Ito
Motoi Sasaki
Mitsunori Tabata
Kazushi Usui
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.)
COSMO SOGO KENKYUSHO KK
Cosmo Research Institute
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
COSMO SOGO KENKYUSHO KK
Agency of Industrial Science and Technology
Cosmo Research Institute
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
Priority claimed from JP2204103A external-priority patent/JP2595370B2/ja
Priority claimed from JP2204102A external-priority patent/JPH0490826A/ja
Priority claimed from JP2204104A external-priority patent/JPH04118030A/ja
Application filed by COSMO SOGO KENKYUSHO KK, Agency of Industrial Science and Technology, Cosmo Research Institute filed Critical COSMO SOGO KENKYUSHO KK
Publication of DE69125649D1 publication Critical patent/DE69125649D1/de
Application granted granted Critical
Publication of DE69125649T2 publication Critical patent/DE69125649T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B01D53/92—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
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/208—Hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/21—Organic compounds not provided for in groups B01D2251/206 or B01D2251/208
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/202—Alkali metals
    • B01D2255/2027—Sodium
    • 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
    • B01D2255/20715—Zirconium
    • 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
    • B01D2255/20761—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/50—Zeolites
    • B01D2255/504—ZSM 5 zeolites
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
DE69125649T 1990-05-28 1991-05-28 Verfahren zum Entfernen von Stickoxiden aus Abgasen Expired - Lifetime DE69125649T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP13934090 1990-05-28
JP2204103A JP2595370B2 (ja) 1990-08-01 1990-08-01 窒素酸化物含有排ガスの浄化方法
JP2204102A JPH0490826A (ja) 1990-08-01 1990-08-01 排ガス浄化方法
JP2204104A JPH04118030A (ja) 1990-05-28 1990-08-01 窒素酸化物の除去方法

Publications (2)

Publication Number Publication Date
DE69125649D1 DE69125649D1 (de) 1997-05-22
DE69125649T2 true DE69125649T2 (de) 1997-09-04

Family

ID=27472218

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69125649T Expired - Lifetime DE69125649T2 (de) 1990-05-28 1991-05-28 Verfahren zum Entfernen von Stickoxiden aus Abgasen

Country Status (2)

Country Link
EP (1) EP0459396B1 (de)
DE (1) DE69125649T2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2257696B (en) * 1991-06-28 1995-05-31 Riken Kk Method and apparatus for cleaning exhaust gas
US5534237A (en) * 1991-07-23 1996-07-09 Kubushiki Kaisha Riken Method of cleaning an exhaust gas and exhaust gas cleaner therefor
DE69222488T2 (de) * 1991-07-23 1998-02-05 Riken Kk Abgasreiniger
US5260043A (en) * 1991-08-01 1993-11-09 Air Products And Chemicals, Inc. Catalytic reduction of NOx and carbon monoxide using methane in the presence of oxygen
FR2690358B1 (fr) * 1992-04-25 1995-01-13 Volkswagen Ag Procédé de réduction des oxydes d'azote dans des gaz d'échappement contenant de l'oxygène .
DE4226112B4 (de) * 1992-08-07 2006-01-12 Engelhard Corp. Verwendung eines Katalysators zur Verringerung der Partikelmenge und/oder -größe im Dieselabgas
US6248684B1 (en) * 1992-11-19 2001-06-19 Englehard Corporation Zeolite-containing oxidation catalyst and method of use
DE69427744T2 (de) * 1993-04-28 2002-05-23 Nippon Catalytic Chem Ind Methode zur entfernung von in abgas enthaltenen stickstoffoxyden
EP0624393B1 (de) * 1993-05-10 2001-08-16 Sakai Chemical Industry Co., Ltd., Katalysator zur katalytischen Reduktion von Stickstoffoxiden
JP3440290B2 (ja) * 1993-08-26 2003-08-25 独立行政法人産業技術総合研究所 排ガス浄化方法
EP0661089B1 (de) * 1993-12-28 1998-03-11 Kabushiki Kaisha Riken Vorrichtung und Verfahren zur Reinigung von Abgas
EP0667182A3 (de) * 1994-02-10 1995-10-18 Riken Kk Abgasreiniger und Methode zum Reinigen von Abgas.
JP4358309B2 (ja) 1997-04-09 2009-11-04 エミテック ゲゼルシヤフト フユア エミツシオンス テクノロギー ミツト ベシユレンクテル ハフツング ＮＯｘ蓄積体の監視方法及び装置
US20020014071A1 (en) * 1998-10-01 2002-02-07 Mari Lou Balmer Catalytic plasma reduction of nox
NO328397B1 (no) * 2007-07-04 2010-02-08 Yara Int Asa Fremgangsmate til a produsere keramiske katalysatorer.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3741725A (en) * 1971-08-12 1973-06-26 J Graham Catalytic control of auto exhaust emissions
DE3326639A1 (de) * 1983-07-23 1985-01-31 Hoechst Ag, 6230 Frankfurt Verfahren zur verminderung des stickstoffdioxidgehaltes von gasgemischen
DE3544998C2 (de) * 1985-12-19 1996-08-01 Krupp Koppers Gmbh Verfahren zur Minderung des NO¶x¶-Gehaltes von Abgasen
DE3713169A1 (de) * 1987-04-17 1988-11-03 Bayer Ag Verfahren und vorrichtung zur reduktion von stickoxiden

Also Published As

Publication number Publication date
DE69125649D1 (de) 1997-05-22
EP0459396A1 (de) 1991-12-04
EP0459396B1 (de) 1997-04-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition