IT1066327B - Processo per ridurre ad azoto innocuo gli nox in un gas di scarico - Google Patents

Processo per ridurre ad azoto innocuo gli nox in un gas di scarico

Info

Publication number
IT1066327B
IT1066327B IT51110/76A IT5111076A IT1066327B IT 1066327 B IT1066327 B IT 1066327B IT 51110/76 A IT51110/76 A IT 51110/76A IT 5111076 A IT5111076 A IT 5111076A IT 1066327 B IT1066327 B IT 1066327B
Authority
IT
Italy
Prior art keywords
innocous
noxes
exhaust gas
reduce nox
nox
Prior art date
Application number
IT51110/76A
Other languages
English (en)
Original Assignee
Nippon Kokan Kk
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 JP50107623A external-priority patent/JPS5230768A/ja
Priority claimed from JP50107624A external-priority patent/JPS5230796A/ja
Application filed by Nippon Kokan Kk filed Critical Nippon Kokan Kk
Application granted granted Critical
Publication of IT1066327B publication Critical patent/IT1066327B/it

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
    • 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
    • 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
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/74—Iron group metals
    • B01J23/745—Iron

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
IT51110/76A 1975-09-05 1976-09-02 Processo per ridurre ad azoto innocuo gli nox in un gas di scarico IT1066327B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP50107623A JPS5230768A (en) 1975-09-05 1975-09-05 Process for the denitrification of exhaust gas with iron oxide as cata lyst
JP50107624A JPS5230796A (en) 1975-09-05 1975-09-05 Process for preparing iron ore catalysts for denitration of exhaust ga s

Publications (1)

Publication Number Publication Date
IT1066327B true IT1066327B (it) 1985-03-04

Family

ID=26447642

Family Applications (1)

Application Number Title Priority Date Filing Date
IT51110/76A IT1066327B (it) 1975-09-05 1976-09-02 Processo per ridurre ad azoto innocuo gli nox in un gas di scarico

Country Status (7)

Country Link
US (1) US4070440A (it)
AU (1) AU498403B2 (it)
CA (1) CA1062442A (it)
DE (1) DE2639848C3 (it)
FR (1) FR2322642A1 (it)
GB (1) GB1554300A (it)
IT (1) IT1066327B (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3531651C1 (de) * 1985-09-05 1987-02-19 Didier Engineering Gmbh, 4300 Essen Katalysator in Form einer Platte fuer die Stickoxidreduzierung in Abgasen
DE3532207A1 (de) * 1985-09-10 1987-03-19 Didier Eng Verfahren zur herstellung von katalysatorformlingen
FI853615L (fi) * 1985-09-20 1987-03-21 Tampella Oy Ab Foerfarande foer minskning av utslaeppen av kvaeve- och svaveloxider vid foerbraenning av kvaeve- och svavelhaltigt braensle.
DE3543858A1 (de) * 1985-12-12 1987-06-19 Didier Werke Ag Verfahren zur herstellung eines katalysators zur stickoxidreduzierung von abgasen
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
EP0431819A1 (en) * 1989-11-28 1991-06-12 Yutaka Tamaura Method for decomposing gaseous oxide and catalyst used therefor
US5814164A (en) * 1994-11-09 1998-09-29 American Scientific Materials Technologies L.P. Thin-walled, monolithic iron oxide structures made from steels, and methods for manufacturing such structures
US6045628A (en) * 1996-04-30 2000-04-04 American Scientific Materials Technologies, L.P. Thin-walled monolithic metal oxide structures made from metals, and methods for manufacturing such structures
NL9402180A (nl) * 1994-12-21 1996-08-01 Hoogovens Staal Bv Werkwijze voor het verwijderen van NOx uit een gas door middel van selectieve katalytische reductie.
CA2141734C (en) * 1995-01-25 2000-06-06 Raj Narain Pandey Selective catalytic reduction of nitrogen oxides
US6461562B1 (en) 1999-02-17 2002-10-08 American Scientific Materials Technologies, Lp Methods of making sintered metal oxide articles
CN104971721A (zh) * 2015-07-17 2015-10-14 合肥工业大学 一种铁氧化物选择性氨还原脱硝催化剂及其应用方法
CN113385008B (zh) * 2021-06-28 2022-10-11 北京工业大学 一种利用铁碳复合材料作为sncr添加剂进行烟气脱硝的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5338714B2 (it) * 1971-10-04 1978-10-17
US3959400A (en) * 1973-10-01 1976-05-25 Mobil Oil Corporation Olefin dimerization
JPS5332788B2 (it) * 1973-10-12 1978-09-09
US3953575A (en) * 1973-11-21 1976-04-27 American Gas Association Iron oxide sorbents for regenerative sorption of Nox

Also Published As

Publication number Publication date
US4070440A (en) 1978-01-24
GB1554300A (en) 1979-10-17
DE2639848B2 (de) 1977-12-01
CA1062442A (en) 1979-09-18
AU498403B2 (en) 1979-03-08
DE2639848A1 (de) 1977-03-17
DE2639848C3 (de) 1978-08-03
FR2322642A1 (fr) 1977-04-01
FR2322642B1 (it) 1979-09-28
AU1734276A (en) 1978-03-09

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