DE2411853A1 - Verfahren zur katalytischen reduktion von stickstoffoxyden - Google Patents

Verfahren zur katalytischen reduktion von stickstoffoxyden

Info

Publication number
DE2411853A1
DE2411853A1 DE19742411853 DE2411853A DE2411853A1 DE 2411853 A1 DE2411853 A1 DE 2411853A1 DE 19742411853 DE19742411853 DE 19742411853 DE 2411853 A DE2411853 A DE 2411853A DE 2411853 A1 DE2411853 A1 DE 2411853A1
Authority
DE
Germany
Prior art keywords
exchanged
zeolite
sgm
exhaust gas
nickel
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.)
Pending
Application number
DE19742411853
Other languages
German (de)
English (en)
Inventor
Dallas Thurston Pence
Thomas Russel Thomas
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.)
US Atomic Energy Commission (AEC)
Original Assignee
US Atomic Energy Commission (AEC)
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 US Atomic Energy Commission (AEC) filed Critical US Atomic Energy Commission (AEC)
Publication of DE2411853A1 publication Critical patent/DE2411853A1/de
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B01J29/18—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type
    • B01J29/20—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type containing iron group metals, noble metals or copper
    • 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
    • B01D2251/202—Hydrogen
    • 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
    • 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
    • B01D2255/50—Zeolites

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (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)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
DE19742411853 1973-03-13 1974-03-12 Verfahren zur katalytischen reduktion von stickstoffoxyden Pending DE2411853A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US34080973A 1973-03-13 1973-03-13

Publications (1)

Publication Number Publication Date
DE2411853A1 true DE2411853A1 (de) 1974-09-19

Family

ID=23335025

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742411853 Pending DE2411853A1 (de) 1973-03-13 1974-03-12 Verfahren zur katalytischen reduktion von stickstoffoxyden

Country Status (4)

Country Link
JP (1) JPS49122475A (it)
DE (1) DE2411853A1 (it)
FR (1) FR2221172A1 (it)
IT (1) IT1005647B (it)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4297328A (en) * 1979-09-28 1981-10-27 Union Carbide Corporation Three-way catalytic process for gaseous streams
DE3544476A1 (de) * 1985-12-16 1987-06-19 Sued Chemie Ag Eisenhaltiger katalysator zur verringerung des stickoxidgehalts von verbrennungsabgasen
FR2622474A2 (fr) * 1987-04-03 1989-05-05 Azote & Prod Chim Composition catalytique de reduction selective des oxydes d'azote contenus dans des effluents gazeux oxygenes et procede d'epuration desdits effluents
DE3841990A1 (de) * 1988-12-14 1990-06-21 Degussa Verfahren zur reduktion von stickoxiden aus abgasen
WO1999001203A1 (de) * 1997-07-04 1999-01-14 Metallgesellschaft Aktiengesellschaft Verfahren zur herstellung feinkörniger katalysatoren aus natürlich vorkommendem zeolith

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS548351B2 (it) * 1973-09-27 1979-04-14
JPS5242489A (en) * 1976-05-20 1977-04-02 Toa Nenryo Kogyo Kk Nox-reduction catalyst and method of producing thereof
DE3635284A1 (de) * 1986-10-16 1988-04-28 Steuler Industriewerke Gmbh Katalysator zur entfernung von stickoxiden aus abgasen
JPH01310742A (ja) * 1988-06-07 1989-12-14 Toyota Motor Corp 排気ガス浄化用触媒

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4297328A (en) * 1979-09-28 1981-10-27 Union Carbide Corporation Three-way catalytic process for gaseous streams
DE3544476A1 (de) * 1985-12-16 1987-06-19 Sued Chemie Ag Eisenhaltiger katalysator zur verringerung des stickoxidgehalts von verbrennungsabgasen
FR2622474A2 (fr) * 1987-04-03 1989-05-05 Azote & Prod Chim Composition catalytique de reduction selective des oxydes d'azote contenus dans des effluents gazeux oxygenes et procede d'epuration desdits effluents
US4910004A (en) * 1987-04-03 1990-03-20 Azote et Societe Chimique de la Grande Paroisse, Produits Chemiques Process for selective reduction of nitrogen oxides contained in oxygenated gaseous effluents
DE3841990A1 (de) * 1988-12-14 1990-06-21 Degussa Verfahren zur reduktion von stickoxiden aus abgasen
US5116586A (en) * 1988-12-14 1992-05-26 Degussa Aktiengesellschaft Method for the reduction of nitrogen oxides from waste gases using a zeolite
WO1999001203A1 (de) * 1997-07-04 1999-01-14 Metallgesellschaft Aktiengesellschaft Verfahren zur herstellung feinkörniger katalysatoren aus natürlich vorkommendem zeolith

Also Published As

Publication number Publication date
FR2221172A1 (en) 1974-10-11
JPS49122475A (it) 1974-11-22
FR2221172B3 (it) 1976-12-24
IT1005647B (it) 1976-09-30

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