GB1393053A - Catalytic reduction of nitrogen oxides - Google Patents

Catalytic reduction of nitrogen oxides

Info

Publication number
GB1393053A
GB1393053A GB3497073A GB3497073A GB1393053A GB 1393053 A GB1393053 A GB 1393053A GB 3497073 A GB3497073 A GB 3497073A GB 3497073 A GB3497073 A GB 3497073A GB 1393053 A GB1393053 A GB 1393053A
Authority
GB
United Kingdom
Prior art keywords
nitrogen oxides
catalytic reduction
ammonia
reducing
type
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
Application number
GB3497073A
Other languages
English (en)
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 GB1393053A publication Critical patent/GB1393053A/en
Expired 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
    • 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
    • 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
    • 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
    • B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
    • B01J29/082—X-type faujasite
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/02—Preparation of nitrogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Biomedical Technology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
GB3497073A 1972-08-30 1973-07-23 Catalytic reduction of nitrogen oxides Expired GB1393053A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28481072A 1972-08-30 1972-08-30

Publications (1)

Publication Number Publication Date
GB1393053A true GB1393053A (en) 1975-05-07

Family

ID=23091610

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3497073A Expired GB1393053A (en) 1972-08-30 1973-07-23 Catalytic reduction of nitrogen oxides

Country Status (4)

Country Link
JP (1) JPS5641300B2 (enrdf_load_stackoverflow)
DE (1) DE2341744C2 (enrdf_load_stackoverflow)
FR (1) FR2197815B1 (enrdf_load_stackoverflow)
GB (1) GB1393053A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4104361A (en) * 1975-03-28 1978-08-01 Exxon Research & Engineering Co. Catalyst for reduction of nitrogen oxides and process for preparing the same
DE3000383A1 (de) * 1979-01-12 1980-07-31 Norton Co Verfahren zur katalytischen reduktion von stickoxiden
GB2162830A (en) * 1984-08-10 1986-02-12 Babcock Hitachi Kk Ammonia reduction-denitration process
EP0214942A1 (en) * 1985-07-29 1987-03-18 Eka Nobel Aktiebolag Catalyst and method for purifying exhaust gases from nitrogen oxides
WO2009135588A1 (de) * 2008-05-07 2009-11-12 Umicore Ag & Co. Kg Verfahren zur verminderung von stickoxiden in kohlenwasserstoffhaltigen abgasen unter verwendung eines scr-katalysators auf basis eines molekularsiebes
US10001053B2 (en) 2008-06-27 2018-06-19 Umicore Ag & Co. Kg Method and device for the purification of diesel exhaust gases

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS516169A (enrdf_load_stackoverflow) * 1974-07-05 1976-01-19 Hitachi Ltd
JPS539598B2 (enrdf_load_stackoverflow) * 1974-09-10 1978-04-06
JPS5242489A (en) * 1976-05-20 1977-04-02 Toa Nenryo Kogyo Kk Nox-reduction catalyst and method of producing thereof
GB1586530A (en) * 1977-05-31 1981-03-18 Caterpillar Tractor Co Two-stage catalysts of engine exhaust
DE3244370A1 (de) * 1982-12-01 1984-06-07 Basf Ag, 6700 Ludwigshafen Verfahren zur entfernung von distickstoffoxid aus wasserstoff, stickstoffmonoxid und distickstoffoxid enthaltenden gasen
DE3328653A1 (de) * 1983-08-09 1985-02-28 Steuler Industriewerke GmbH, 5410 Höhr-Grenzhausen Vorrichtung zur durchfuehrung eines verfahrens zur ausscheidung von stickoxyden aus abgasen
EP0205813A3 (de) * 1985-04-22 1988-09-21 Klaus Rennebeck Katalysator, insbesondere für die Abgasreinigung, Verfahren und Vorrichtung zu seiner Herstellung
DE3704030A1 (de) * 1987-02-10 1988-08-18 Ruhrgas Ag Verfahren zum abscheiden von stickstoffoxiden aus abgasen durch selektive katalytische reduktion
FR2622474B2 (fr) * 1987-04-03 1990-01-26 Azote & Prod Chim Composition catalytique de reduction selective des oxydes d'azote contenus dans des effluents gazeux oxygenes et procede d'epuration desdits effluents
FR2613253B1 (fr) * 1987-04-03 1989-06-09 Azote & Prod Chim Composition catalytique de reduction selective des oxydes d'azote contenus dans des effluents gazeux oxygenes et procede d'epuration desdits effluents
FR2625919B1 (fr) * 1988-01-19 1994-02-11 Institut Francais Petrole Procede et catalyseur pour la reduction selective des oxydes d'azote
JPH01299642A (ja) * 1988-05-30 1989-12-04 Hitachi Zosen Corp 低濃度窒素酸化物の吸着除去剤
DE4300988C1 (de) * 1993-01-15 1994-04-07 Ppv Verwaltungs Ag Zuerich Vorrichtung zur Sauerstoffanreicherung von Luft

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015369A (en) * 1960-05-23 1962-01-02 Socony Mobil Oil Co Inc Removal of nitrogen oxides from combustion gases

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4104361A (en) * 1975-03-28 1978-08-01 Exxon Research & Engineering Co. Catalyst for reduction of nitrogen oxides and process for preparing the same
DE3000383A1 (de) * 1979-01-12 1980-07-31 Norton Co Verfahren zur katalytischen reduktion von stickoxiden
FR2446253A1 (fr) * 1979-01-12 1980-08-08 Norton Co Procede de reduction des oxydes d'azote par l'ammoniac en presence de clinoptilotite
GB2162830A (en) * 1984-08-10 1986-02-12 Babcock Hitachi Kk Ammonia reduction-denitration process
EP0214942A1 (en) * 1985-07-29 1987-03-18 Eka Nobel Aktiebolag Catalyst and method for purifying exhaust gases from nitrogen oxides
WO2009135588A1 (de) * 2008-05-07 2009-11-12 Umicore Ag & Co. Kg Verfahren zur verminderung von stickoxiden in kohlenwasserstoffhaltigen abgasen unter verwendung eines scr-katalysators auf basis eines molekularsiebes
EP2898941A1 (de) * 2008-05-07 2015-07-29 Umicore AG & Co. KG Anordnung zur behandlung von stickoxide (nox) und kohlenwasserstoffe (hc) enthaltenden dieselmotorenabgasen
EP2918329A1 (de) * 2008-05-07 2015-09-16 Umicore Ag & Co. Kg Anordnung und verfahren zur verminderung von stickoxiden in kohlenwasserstoffhaltigen abgasen unter verwendung eines scr-katalysators auf basis eines molekularsiebes
EP2918330A1 (de) * 2008-05-07 2015-09-16 Umicore Ag & Co. Kg Verfahren zur verminderung von stickoxiden in kohlenwasserstoffhaltigen abgasen unter verwendung eines scr-katalysators auf basis eines molekularsiebes und scr-katalysator dafür
EP3195920A1 (de) * 2008-05-07 2017-07-26 Umicore Ag & Co. Kg Verfahren zur verminderung von stickoxiden in kohlenwasserstoff-haltigen abgasen unter verwendung eines scr-katalysators auf basis eines molekularsiebes
US10001053B2 (en) 2008-06-27 2018-06-19 Umicore Ag & Co. Kg Method and device for the purification of diesel exhaust gases
US10316739B2 (en) 2008-06-27 2019-06-11 Umicore Ag & Co. Kg Method and device for the purification of diesel exhaust gases

Also Published As

Publication number Publication date
FR2197815A1 (enrdf_load_stackoverflow) 1974-03-29
JPS4959075A (enrdf_load_stackoverflow) 1974-06-07
DE2341744A1 (de) 1974-03-07
JPS5641300B2 (enrdf_load_stackoverflow) 1981-09-28
FR2197815B1 (enrdf_load_stackoverflow) 1978-01-27
DE2341744C2 (de) 1983-07-14

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19930722