DE69403592T2 - Verfahren zur Zersetzung von Stickstoffoxiden - Google Patents

Verfahren zur Zersetzung von Stickstoffoxiden

Info

Publication number
DE69403592T2
DE69403592T2 DE1994603592 DE69403592T DE69403592T2 DE 69403592 T2 DE69403592 T2 DE 69403592T2 DE 1994603592 DE1994603592 DE 1994603592 DE 69403592 T DE69403592 T DE 69403592T DE 69403592 T2 DE69403592 T2 DE 69403592T2
Authority
DE
Germany
Prior art keywords
decomposition
nitrogen oxides
oxides
nitrogen
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 - Fee Related
Application number
DE1994603592
Other languages
English (en)
Other versions
DE69403592D1 (de
Inventor
Jnr William Harry Brendley
Russell Stephen Drago
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.)
Rohm and Haas Co
Original Assignee
Rohm and Haas Co
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 Rohm and Haas Co filed Critical Rohm and Haas Co
Application granted granted Critical
Publication of DE69403592D1 publication Critical patent/DE69403592D1/de
Publication of DE69403592T2 publication Critical patent/DE69403592T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B01D53/92—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
    • B01D2251/204—Carbon monoxide
    • 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
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B01D2255/2065—Cerium
    • 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
    • B01D2255/2073—Manganese
    • 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
    • B01D2255/20746—Cobalt
    • 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
    • B01D2255/20753—Nickel
    • 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
    • B01D2255/70—Non-metallic catalysts, additives or dopants
    • B01D2255/702—Carbon

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
DE1994603592 1993-09-16 1994-09-05 Verfahren zur Zersetzung von Stickstoffoxiden Expired - Fee Related DE69403592T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12226893A 1993-09-16 1993-09-16

Publications (2)

Publication Number Publication Date
DE69403592D1 DE69403592D1 (de) 1997-07-10
DE69403592T2 true DE69403592T2 (de) 1998-02-05

Family

ID=22401687

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1994603592 Expired - Fee Related DE69403592T2 (de) 1993-09-16 1994-09-05 Verfahren zur Zersetzung von Stickstoffoxiden

Country Status (5)

Country Link
EP (1) EP0643988B1 (de)
JP (1) JPH07185342A (de)
CN (1) CN1103602A (de)
CA (1) CA2131751A1 (de)
DE (1) DE69403592T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2141734C (en) * 1995-01-25 2000-06-06 Raj Narain Pandey Selective catalytic reduction of nitrogen oxides
CN1098722C (zh) * 2000-01-25 2003-01-15 清华大学 一种使氮氧化物还原的方法
JP4226275B2 (ja) * 2002-06-07 2009-02-18 日本パイオニクス株式会社 排ガスの浄化方法
DE102011121188A1 (de) * 2011-12-16 2013-06-20 Thyssen Krupp Uhde Gmbh Vorrichtung und Verfahren zur Beseitigung von NOx und N20
JP2014036949A (ja) * 2012-07-18 2014-02-27 Denso Corp 大気浄化触媒及びその製造方法
CN106466620A (zh) * 2015-08-20 2017-03-01 中国石油化工股份有限公司 一氧化碳低温下催化还原脱除氮氧化物的催化剂
CN106466609A (zh) * 2015-08-20 2017-03-01 中国石油化工股份有限公司 一氧化碳低温催化还原脱除氮氧化物的催化剂
CN115121110B (zh) * 2021-03-24 2023-08-08 中国石油化工股份有限公司 一种催化一氧化二氮分解的方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040990A (en) * 1975-02-18 1977-08-09 Rohm And Haas Company Partially pyrolyzed macroporous polymer particles having multimodal pore distribution with macropores ranging from 50-100,000 angstroms
EP0077424A1 (de) * 1981-10-21 1983-04-27 The Standard Oil Company Verfahren zur Entfernung von Stickstoffoxiden aus einem Gasstrom
DE3727643A1 (de) * 1987-08-19 1989-03-02 Bayer Ag Verfahren zur reduzierung von stickstoffoxiden aus abgasen
DE3727642A1 (de) * 1987-08-19 1989-03-02 Bayer Ag Katalysator, verfahren zu seiner herstellung und dessen verwendung
DE3832635A1 (de) * 1988-09-26 1990-03-29 Heinrich Dr Rer Nat Fruehbuss Verfahren zur herstellung von kohlenstoffhaltigen katalysatoren mit adsorptiven eigenschaften
US5344630A (en) * 1991-06-28 1994-09-06 Rohm And Haas Company Deep oxidation of halogenated organics with porous carbonaceous materials

Also Published As

Publication number Publication date
JPH07185342A (ja) 1995-07-25
CA2131751A1 (en) 1995-03-17
EP0643988A1 (de) 1995-03-22
EP0643988B1 (de) 1997-06-04
DE69403592D1 (de) 1997-07-10
CN1103602A (zh) 1995-06-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee