IT1028324B - Metodo per rimuovere ossidi di azoto da gas di scarico mediante riduzione - Google Patents

Metodo per rimuovere ossidi di azoto da gas di scarico mediante riduzione

Info

Publication number
IT1028324B
IT1028324B IT19214/75A IT1921475A IT1028324B IT 1028324 B IT1028324 B IT 1028324B IT 19214/75 A IT19214/75 A IT 19214/75A IT 1921475 A IT1921475 A IT 1921475A IT 1028324 B IT1028324 B IT 1028324B
Authority
IT
Italy
Prior art keywords
reduction
exhaust gas
nitrogen oxides
removing nitrogen
oxides
Prior art date
Application number
IT19214/75A
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
Application filed by Nippon Kokan Kk filed Critical Nippon Kokan Kk
Application granted granted Critical
Publication of IT1028324B publication Critical patent/IT1028324B/it

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
    • 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
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/889—Manganese, technetium or rhenium
    • B01J23/8892—Manganese
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
IT19214/75A 1974-01-14 1975-01-13 Metodo per rimuovere ossidi di azoto da gas di scarico mediante riduzione IT1028324B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49007305A JPS50101275A (it) 1974-01-14 1974-01-14

Publications (1)

Publication Number Publication Date
IT1028324B true IT1028324B (it) 1979-01-30

Family

ID=11662289

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19214/75A IT1028324B (it) 1974-01-14 1975-01-13 Metodo per rimuovere ossidi di azoto da gas di scarico mediante riduzione

Country Status (7)

Country Link
US (1) US4025604A (it)
JP (1) JPS50101275A (it)
CA (1) CA1034741A (it)
DE (1) DE2460681C3 (it)
FR (1) FR2257325B1 (it)
GB (1) GB1482539A (it)
IT (1) IT1028324B (it)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54227B2 (it) * 1974-11-20 1979-01-08
JPS5184769A (it) * 1975-01-24 1976-07-24 Hitachi Ltd
US4201751A (en) * 1975-05-06 1980-05-06 Heinz Gresch Gas purification
JPS51134370A (en) * 1975-05-16 1976-11-20 Nippon Kokan Kk <Nkk> Process for removal of nitrogen oxides in exhaust gas
JPS51141770A (en) * 1975-05-31 1976-12-06 Nippon Steel Corp A dry ammonia reducing denitrification process using dust
JPS51141769A (en) * 1975-05-31 1976-12-06 Nippon Steel Corp A dry ammonia reducing denitrification process using steel slags
JPS5236570A (en) * 1975-09-18 1977-03-19 Mitsubishi Kakoki Kaisha Ltd Process for removing nitrogen oxides in exhaust gases and its equipmen t
JPS52116777A (en) * 1976-03-26 1977-09-30 Nippon Steel Corp Removal of nitrogen oxides contained in exhaust gas
JPS5315259A (en) * 1976-07-28 1978-02-10 Mitsubishi Heavy Ind Ltd Denitrating method for exhaust gas from sintering equipment
JPS5333974A (en) * 1976-09-10 1978-03-30 Nippon Kokan Kk <Nkk> Removing method for hydrocarbons in exhaust gas
JPS5340017A (en) * 1976-09-27 1978-04-12 Kawatetsu Kogyo Kk Blast furnace ballast modification process
US4112053A (en) * 1977-01-04 1978-09-05 Kureha Kagaku Kogyo Kabushiki Kaisha Dry method for the denitrification of exhaust gas containing nitrogen oxides
JPS5387971A (en) * 1977-01-12 1978-08-02 Kawasaki Steel Co Method of removing nitrogen oxides from exhaust gas
JPS5482304A (en) * 1977-12-14 1979-06-30 Sumitomo Metal Ind Ltd Nox decreasing method in manufacture of sintered ore
US4246243A (en) * 1978-11-27 1981-01-20 Irwin Fox Use of steel plant waste dusts for scavenging hydrogen sulfide
US4246244A (en) * 1979-05-31 1981-01-20 Gas Sweetener, Inc. Process for scavenging hydrogen sulfide from hydrocarbon gases
DE3071048D1 (en) * 1980-12-30 1985-10-03 Gas Sweetener Ass Scavenging hydrogen sulfide from hydrocarbon gases
DE3426796C2 (de) * 1984-07-20 1987-04-23 Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck Verfahren zur Abscheidung von SO&darr;2&darr;,SO&darr;3&darr;,NO&darr;x&darr; sowie von Stäuben aus Abgasen
DE3430870A1 (de) * 1984-08-22 1986-02-27 Didier Engineering Gmbh, 4300 Essen Verfahren zur abgasreinigung
US4721582A (en) * 1986-03-11 1988-01-26 Sanitech, Inc. Toxic gas absorbent and processes for making same
US4786484A (en) * 1987-02-03 1988-11-22 Sanitech, Inc. Process for absorbing toxic gas
US4806320A (en) * 1988-04-21 1989-02-21 Sanitech, Inc. Process for Nox control
US5213780A (en) * 1991-06-04 1993-05-25 Research-Cottrell, Inc. Method for nitrogen oxide reduction and flue gas reheating
JP2674428B2 (ja) * 1992-07-06 1997-11-12 株式会社神戸製鋼所 窒素酸化物除去用触媒及び窒素酸化物の除去方法
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
CN103933986A (zh) * 2013-01-18 2014-07-23 济南大学 一种高炉除尘灰制备的用于工业合成氨的熔铁催化剂

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB109056A (en) 1916-07-27 1918-07-04 Rhenania Chem Fab Improvements in the Preparation of Catalytic Substances from Natural Ores Containing Iron Oxide which Contains Water of Hydration.
DE556096C (de) * 1930-08-08 1932-08-08 Ver Stahlwerke Akt Ges Verfahren zur Entfernung von Schwefelwasserstoff
US3008796A (en) * 1958-06-05 1961-11-14 Engelhard Ind Inc Method of purifying gases containing oxygen and oxides of nitrogen
DE1253685B (de) * 1963-01-22 1967-11-09 Degussa Verfahren zur Entfernung von Stickstoffoxyden aus stickstoffoxydhaltigen Abgasen
DE1259298B (de) * 1964-08-29 1968-01-25 Hamburger Gaswerke Gmbh Verfahren zur Entfernung von Stickoxyden aus Gasen durch katalytische Reduktion derselben zu Stickstoff
DE1298673B (de) * 1964-12-15 1969-07-03 Still Fa Carl Verwendung von Aschen von festen Brennstoffen und von Rueckstaenden der Aufbereitungvon Erzen zur Absorption von Schwefeloxiden aus Gasen, insbesondere Rauchgasen
FR1504331A (fr) 1966-11-29 1967-12-01 Hamburger Gaswerke Gmbh Procédé pour l'élimination d'oxydes d'azote à partir de tous les gaz
JPS521396B2 (it) * 1972-08-25 1977-01-13

Also Published As

Publication number Publication date
US4025604A (en) 1977-05-24
DE2460681B2 (de) 1977-09-29
AU7650674A (en) 1976-06-17
FR2257325A1 (it) 1975-08-08
DE2460681C3 (de) 1982-01-21
GB1482539A (en) 1977-08-10
FR2257325B1 (it) 1979-03-09
DE2460681A1 (de) 1975-07-24
CA1034741A (en) 1978-07-18
JPS50101275A (it) 1975-08-11

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