FR2393602A1 - Procede pour eliminer des oxydes d'azote de gaz d'echappement contenant de tels oxydes - Google Patents

Procede pour eliminer des oxydes d'azote de gaz d'echappement contenant de tels oxydes

Info

Publication number
FR2393602A1
FR2393602A1 FR787816995A FR7816995A FR2393602A1 FR 2393602 A1 FR2393602 A1 FR 2393602A1 FR 787816995 A FR787816995 A FR 787816995A FR 7816995 A FR7816995 A FR 7816995A FR 2393602 A1 FR2393602 A1 FR 2393602A1
Authority
FR
France
Prior art keywords
oxides
nitrogen oxides
removing nitrogen
exhaust gases
gases containing
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.)
Withdrawn
Application number
FR787816995A
Other languages
English (en)
Inventor
Tadashi Araki
Hatsuo Saito
Masayuki Funabashi
Ritaro Saito
Koji Seguchi
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.)
Kureha Corp
Original Assignee
Kureha Corp
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 Kureha Corp filed Critical Kureha Corp
Publication of FR2393602A1 publication Critical patent/FR2393602A1/fr
Withdrawn legal-status Critical Current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
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/32—Manganese, technetium or rhenium
    • B01J23/34—Manganese
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/08—Heat treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

La présente invention a pour objet un procédé pour éliminer des oxydes d'azote d'un gaz d'échappement en contenant par contact de ce gaz avec de l'ammoniac en présence d'un catalyseur. Elle est caractérisée en ce que ce catalyseur comprend un oxyde de manganèse, obtenu par chauffage de carbonate de manganèse entre 200 et 500 degrés C dans une atmosphère d'un gaz contenant au moins 1 % en volume d'oxygène. Elle se rapporte à l'élimination des oxydes d'azote d'un gaz d'échappement à une température inférieure à 200 degrés C.
FR787816995A 1977-06-08 1978-06-07 Procede pour eliminer des oxydes d'azote de gaz d'echappement contenant de tels oxydes Withdrawn FR2393602A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52067584A JPS5920383B2 (ja) 1977-06-08 1977-06-08 低温で活性の高いＮＯｘ還元用触媒

Publications (1)

Publication Number Publication Date
FR2393602A1 true FR2393602A1 (fr) 1979-01-05

Family

ID=13349104

Family Applications (1)

Application Number Title Priority Date Filing Date
FR787816995A Withdrawn FR2393602A1 (fr) 1977-06-08 1978-06-07 Procede pour eliminer des oxydes d'azote de gaz d'echappement contenant de tels oxydes

Country Status (7)

Country Link
JP (1) JPS5920383B2 (fr)
CA (1) CA1091899A (fr)
DE (1) DE2824246A1 (fr)
FR (1) FR2393602A1 (fr)
GB (1) GB1599079A (fr)
NL (1) NL7806130A (fr)
PL (1) PL207401A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993002776A1 (fr) * 1991-07-29 1993-02-18 British Technology Group Ltd. Catalyseur et reduction catalytique
GB2272172A (en) * 1991-07-29 1994-05-11 British Tech Group Catalyst and catalytic reduction

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5790159A (en) * 1980-11-27 1982-06-04 Toa Medical Electronics Co Ltd Blood analyzer
DE3634553A1 (de) * 1986-10-10 1988-04-21 Didier Werke Ag Verwendung von manganknollen oder manganhaltigen tiefsee-erzen in katalysatoren zur verminderung von stickstoffoxiden in abgasen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1253685B (de) * 1963-01-22 1967-11-09 Degussa Verfahren zur Entfernung von Stickstoffoxyden aus stickstoffoxydhaltigen Abgasen
FR2157840A1 (en) * 1971-10-08 1973-06-08 Du Pont Collecting sulphurous cpds from gases - using manganese suboxide
US4003854A (en) * 1974-06-03 1977-01-18 Gennady Alexeevich Skvortsov Catalyst of supported vanadium oxide and manganese oxide and method of producing same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1253685B (de) * 1963-01-22 1967-11-09 Degussa Verfahren zur Entfernung von Stickstoffoxyden aus stickstoffoxydhaltigen Abgasen
FR2157840A1 (en) * 1971-10-08 1973-06-08 Du Pont Collecting sulphurous cpds from gases - using manganese suboxide
US4003854A (en) * 1974-06-03 1977-01-18 Gennady Alexeevich Skvortsov Catalyst of supported vanadium oxide and manganese oxide and method of producing same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993002776A1 (fr) * 1991-07-29 1993-02-18 British Technology Group Ltd. Catalyseur et reduction catalytique
GB2272172A (en) * 1991-07-29 1994-05-11 British Tech Group Catalyst and catalytic reduction
GB2272172B (en) * 1991-07-29 1995-11-29 British Tech Group Catalyst and catalytic reduction
US5476828A (en) * 1991-07-29 1995-12-19 British Technology Group Limited Catalyst and catalytic reduction

Also Published As

Publication number Publication date
CA1091899A (fr) 1980-12-23
PL207401A1 (pl) 1979-03-12
GB1599079A (en) 1981-09-30
JPS542289A (en) 1979-01-09
NL7806130A (nl) 1978-12-12
JPS5920383B2 (ja) 1984-05-12
DE2824246A1 (de) 1978-12-14

Similar Documents

Publication Publication Date Title
FR2456543A1 (fr) Procede d'epuration d'un gaz contenant du sulfure d'hydrogene
ES395476A1 (es) Procedimiento de purificacion de humos y gases.
FR2410787A1 (fr) Procede et installation permettant de maitriser la teneur en oxyde d'azote dans les gaz brules d'appareils de combustion
SE7506394L (sv) Sett och anordning for neutralisation av avgaser.
KR900000112A (ko) 수소 또는 다른 환원기체를 사용하지 않는 벌크 질소용 불활성 가스정화기
FR2389381A1 (fr)
GB1482539A (en) Method of removing nitrogen oxides from exhaust gases by reduction
FR2357631A1 (fr) Procede et installation pour l'arret de dispositif de combustion de co
KR830004441A (ko) 금속산화물 함유 분진으로 부터 비휘발성 금속 회수
FR2393602A1 (fr) Procede pour eliminer des oxydes d'azote de gaz d'echappement contenant de tels oxydes
GB1504059A (en) Method of desulphurizing gases containing hydrogen sulphide
RU2032612C1 (ru) Способ получения азотной кислоты
ATE127707T1 (de) Verfahren zur oxidativen reinigung von stickoxide enthaltenden abgasen.
BG60231B2 (en) Process for removing sulphur compounds, in particular sulphur dioxide, from flue gasses
FR2360831A1 (fr) Procede d'introduction d'un produit hydrocarbone contenant de l'oxygene et/ou d'un precurseur de celui-ci, dans des gaz d'echappement de combustion
FR2421918A1 (fr) Procede pour la preparation de polyoxyphenylenes
FR2436135A1 (fr) Procede pour la preparation catalytique de l'acrylonitrile
RU2011115126A (ru) Способ пайки металлического сотового элемента, используемого для снижения токсичности отработавших газов
GB1349887A (en) Removal of nitrogen oxides and other impurities from gaseous mixtures
FR2376686A1 (fr) Procede pour l'incineration catalytique de gaz residuels contenant de l'hydrogene sulfure et composition catalytique utilisable dans ce procede
CA2119639A1 (fr) Procede pour epurer un gaz contenant de l'oxyde nitrique et du dioxyde de soufre
FR2426089A1 (fr) Procede pour la preparation et l'application d'un agent reducteur carbone de grande purete a partir de melanges gazeux contenant de l'oxyde de carbone
GB1526390A (en) Method of purifying a hydrogenated gas containing acid gases
JPS5483696A (en) Production of catalyst and denitration method
KR900004669A (ko) 이소부틸렌을 산화시켜 메타크롤레인을 생성시키고, 이를 산화시켜 메타크릴산을 생성시키기 위한 무수 희석제

Legal Events

Date Code Title Description
ST Notification of lapse