CA1083327A - Method of removing nitrogen oxides from an exhaust - Google Patents

Method of removing nitrogen oxides from an exhaust

Info

Publication number
CA1083327A
CA1083327A CA252,607A CA252607A CA1083327A CA 1083327 A CA1083327 A CA 1083327A CA 252607 A CA252607 A CA 252607A CA 1083327 A CA1083327 A CA 1083327A
Authority
CA
Canada
Prior art keywords
catalyst
iron ore
lumps
reactor
exhaust
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
CA252,607A
Other languages
English (en)
French (fr)
Inventor
Tomoji Iwata
Sanseki Moriguchi
Hiroshi Abe
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.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
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 Ltd filed Critical Nippon Kokan Ltd
Application granted granted Critical
Publication of CA1083327A publication Critical patent/CA1083327A/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
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
    • B01J8/12—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by gravity in a downward flow
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/008—Composition or distribution of the charge

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
CA252,607A 1975-05-16 1976-05-14 Method of removing nitrogen oxides from an exhaust Expired CA1083327A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP50058266A JPS51134370A (en) 1975-05-16 1975-05-16 Process for removal of nitrogen oxides in exhaust gas
JP58266/75 1975-05-16

Publications (1)

Publication Number Publication Date
CA1083327A true CA1083327A (en) 1980-08-12

Family

ID=13079353

Family Applications (1)

Application Number Title Priority Date Filing Date
CA252,607A Expired CA1083327A (en) 1975-05-16 1976-05-14 Method of removing nitrogen oxides from an exhaust

Country Status (7)

Country Link
US (1) US4054640A (enExample)
JP (1) JPS51134370A (enExample)
CA (1) CA1083327A (enExample)
DE (1) DE2621944C3 (enExample)
FR (1) FR2310797A1 (enExample)
GB (1) GB1549376A (enExample)
IT (1) IT1065876B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5612010A (en) * 1995-01-25 1997-03-18 Gas Metropolitain & Company, Limited Selective catalytic reduction of nitrogen oxides

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5235763A (en) * 1975-09-17 1977-03-18 Nippon Steel Chem Co Ltd Method of removing nox
JPS5387971A (en) * 1977-01-12 1978-08-02 Kawasaki Steel Co Method of removing nitrogen oxides from exhaust gas
US5078973A (en) * 1985-01-30 1992-01-07 Babcoco-Hitachi Kabushiki Kaisha Apparatus for treating flue gas
EP0191441B1 (de) * 1985-02-15 1990-11-28 Linde Aktiengesellschaft Vorrichtung zur Entfernung unerwünschter Bestandteile aus einem Rauchgas
DE3505648C2 (de) * 1985-02-19 1987-02-19 Didier Engineering Gmbh, 4300 Essen Verfahren zur Herstellung eines Eisenoxid, Chromoxid und Manganoxid enthaltenden Katalysators zur selektiven Reduzierung von Stickoxiden in Abgasen mittels Ammoniak
FI851382A0 (fi) * 1985-04-04 1985-04-04 Ekono Oy Foerfarande och katalysator foer reduktion av kvaeveoxidhalten i roekgaser.
DE3536958C1 (de) * 1985-10-17 1986-12-11 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Verfahren und Vorrichtung zur Vorwaermung von Verbrennungsluft und zur katalytischenReduktion von Schadstoffen in Rauchgas
AT395831B (de) * 1986-11-06 1993-03-25 Kernforschungsz Karlsruhe Verfahren und vorrichtung zur katalytischen reduktion von schadstoffen in rauchgas
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
US20020044886A1 (en) * 2000-10-16 2002-04-18 William Larco Vaporization system having blower positioned in reduced temperature zone
CN113134384A (zh) * 2020-01-20 2021-07-20 宝山钢铁股份有限公司 一种降低铁矿石烧结过程氮氧化物排放的方法

Family Cites Families (4)

* 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.
US2755174A (en) * 1948-01-07 1956-07-17 Phillips Petroleum Co Pressure tight screen in pebble heater unit
JPS50101275A (enExample) * 1974-01-14 1975-08-11
JPS5636971B2 (enExample) * 1974-05-08 1981-08-27

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5612010A (en) * 1995-01-25 1997-03-18 Gas Metropolitain & Company, Limited Selective catalytic reduction of nitrogen oxides

Also Published As

Publication number Publication date
DE2621944B2 (de) 1978-09-14
JPS51134370A (en) 1976-11-20
IT1065876B (it) 1985-02-25
US4054640A (en) 1977-10-18
JPS5334178B2 (enExample) 1978-09-19
FR2310797A1 (fr) 1976-12-10
AU1389776A (en) 1977-11-17
DE2621944C3 (de) 1979-05-03
GB1549376A (en) 1979-08-08
FR2310797B1 (enExample) 1980-07-18
DE2621944A1 (de) 1976-11-18

Similar Documents

Publication Publication Date Title
CA1083327A (en) Method of removing nitrogen oxides from an exhaust
US4025604A (en) Method of removing nitrogen oxides from exhaust gas by reduction
US4793981A (en) Integrated injection and bag filter house system for SOx -NOx -particulate control with reagent/catalyst regeneration
US5868084A (en) Apparatus and process for carbon removal from fly ash
Yeh et al. INTEGRATED TESTING OF THE NOXSO PROCESS: SIMULTANEOUS REMOVAL OF SO2 AND NO x FROM FLUE GAS
EP0386596B1 (en) Dry type simultanenous desulfurization and dedusting apparatus and method of operation therefor
AU739185B2 (en) A process and apparatus for treating particulate matter
EP0449115B1 (en) Acid rain abatement
GB1576534A (en) Desulphurizing agent for desulphurizing hot reducing gas
Squires et al. Panel bed filters for simultaneous removal of fly ash and sulfur dioxide: I. Introduction
US4290786A (en) Apparatus for removing particulate matter from a gas stream
US4042353A (en) Method and apparatus for filtering through particulate material
US4751212A (en) Process for the manufacture of a catalyst for the reduction of nitrogen oxides in exhaust gases
Smid et al. Granular moving bed filters and adsorbers (GM-BF/A)—patent review: 1970-2000
US3725043A (en) Method for segregating metals contained in the oxide ores thereof
CN108776192B (zh) 粉状活性焦性能评价装置
Ishikawa et al. Development of a simultaneous sulfur and dust removal process for IGCC power generation system
JPH05261243A (ja) 排ガス処理方法
GB1596572A (en) Method of carrying out chemical and/or physical processes
JPH0153569B2 (enExample)
JP2517838B2 (ja) 粉粒流動層脱硫方法
ES484139A1 (es) Perfeccionamiento en los procedimientos de reduccion a re- ductor solido, de oxidos metalicos en hornos e retorta, e - instalacion para su realizacion.
JPH11104458A (ja) ゴミ焼却炉の排ガス処理装置における粉塵処理方法
JPH0716581B2 (ja) 炉内脱硫方法
US20030078162A1 (en) Absorbent sulfur oxide composition and associated use

Legal Events

Date Code Title Description
MKEX Expiry