CA1007830A - Removal of nitrogen oxides from flue gas - Google Patents

Removal of nitrogen oxides from flue gas

Info

Publication number
CA1007830A
CA1007830A CA177,868A CA177868A CA1007830A CA 1007830 A CA1007830 A CA 1007830A CA 177868 A CA177868 A CA 177868A CA 1007830 A CA1007830 A CA 1007830A
Authority
CA
Canada
Prior art keywords
removal
flue gas
nitrogen oxides
oxides
nitrogen
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
CA177,868A
Other versions
CA177868S (en
Inventor
Albert B. Welty (Jr.)
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
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 Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Application granted granted Critical
Publication of CA1007830A publication Critical patent/CA1007830A/en
Expired 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
    • B01D53/8637—Simultaneously removing sulfur oxides and 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
    • 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
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20738—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20761—Copper

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
  • Treating Waste Gases (AREA)
  • Chimneys And Flues (AREA)
CA177,868A 1972-09-01 1973-08-01 Removal of nitrogen oxides from flue gas Expired CA1007830A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28583272A 1972-09-01 1972-09-01

Publications (1)

Publication Number Publication Date
CA1007830A true CA1007830A (en) 1977-04-05

Family

ID=23095888

Family Applications (1)

Application Number Title Priority Date Filing Date
CA177,868A Expired CA1007830A (en) 1972-09-01 1973-08-01 Removal of nitrogen oxides from flue gas

Country Status (8)

Country Link
JP (2) JPS6059004B2 (en)
BE (1) BE804317A (en)
CA (1) CA1007830A (en)
DE (1) DE2341242A1 (en)
FR (1) FR2197628B1 (en)
GB (1) GB1438120A (en)
IT (1) IT993099B (en)
NL (1) NL7312041A (en)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1007830A (en) * 1972-09-01 1977-04-05 Albert B. Welty (Jr.) Removal of nitrogen oxides from flue gas
JPS5012393B2 (en) * 1973-03-13 1975-05-12
JPS5523086B2 (en) * 1973-03-26 1980-06-20
JPS5511892B2 (en) * 1973-04-18 1980-03-28
JPS525433B2 (en) * 1973-04-18 1977-02-14
GB1474184A (en) * 1973-05-08 1977-05-18 Shell Int Research Process for removing sulphur oxides and particulate matter from waste gases and apparatus therefor
JPS5315705B2 (en) * 1973-05-12 1978-05-26
US4107272A (en) * 1973-05-21 1978-08-15 Hitachi, Ltd. Process for removing nitrogen oxides using ammonia as a reductant and sulfated metallic catalysts
JPS5041764A (en) * 1973-08-17 1975-04-16
JPS5621450B2 (en) * 1973-09-29 1981-05-19
US4085193A (en) * 1973-12-12 1978-04-18 Mitsubishi Petrochemical Co. Ltd. Catalytic process for reducing nitrogen oxides to nitrogen
JPS5515247B2 (en) * 1974-06-11 1980-04-22
JPS5116273A (en) * 1974-07-31 1976-02-09 Hitachi Ltd DATSUSHOSOCHINIOKERU NH3 CHUNYURYONO SEIGYOHO
JPS5118262A (en) * 1974-08-06 1976-02-13 Japan Gasoline Haigasuchuno chitsusosankabutsuno jokyohoho
JPS5127865A (en) * 1974-09-02 1976-03-09 Asahi Chemical Ind
JPS539598B2 (en) * 1974-09-10 1978-04-06
JPS542913B2 (en) * 1974-09-19 1979-02-15
US4031185A (en) * 1975-02-03 1977-06-21 Hitachi, Ltd. Process for making nitrogen oxides contained in flue gas harmless
JPS51108666A (en) * 1975-03-20 1976-09-27 Asahi Glass Co Ltd
US4104361A (en) * 1975-03-28 1978-08-01 Exxon Research & Engineering Co. Catalyst for reduction of nitrogen oxides and process for preparing the same
JPS5210856A (en) * 1975-07-16 1977-01-27 Kyushu Sekisui Kogyo Kk Process and apparatus for removal of nitrogen oxides
JPS5230285A (en) * 1975-09-03 1977-03-07 Seitetsu Kagaku Co Ltd Regeneration method of catalyst
JPS609201B2 (en) * 1975-09-29 1985-03-08 株式会社日立製作所 Exhaust heat recovery boiler equipment
NL7601371A (en) * 1976-02-11 1977-08-15 Shell Int Research PROCEDURE FOR THE SIMULTANEOUS REMOVAL OF NITROGEN OXIDES AND SULFUR OXIDES FROM A GAS FLOW.
US4251496A (en) * 1979-03-22 1981-02-17 Exxon Research & Engineering Co. Process for the removal of SOx and NOx from gaseous mixture containing the same
FR2466434A1 (en) * 1979-10-01 1981-04-10 Uop Inc Sepn. of sulphur and nitrogen oxide(s) from gas mixt. - by contacting mixt. and ammonia with sulphur oxide(s) acceptor of copper (oxide) dispersed on ruthenium and rhenium oxide(s) compsn.
JPS56150421A (en) * 1980-04-23 1981-11-20 Hitachi Ltd Cleaning of waste gas
DE3140657C2 (en) * 1981-10-13 1985-04-18 Alkem Gmbh, 6450 Hanau Process for the final conditioning of aqueous solution containing pollutants, in particular radioactive and / or toxic pollutants
DE3423744A1 (en) * 1984-06-28 1986-01-09 Bergwerksverband Gmbh, 4300 Essen Process for separating out SO2 and NOx
JPH0747130B2 (en) * 1991-07-23 1995-05-24 株式会社コロイドリサーチ Method for producing nitrogen oxide decomposition catalyst
CN112569777A (en) * 2019-09-27 2021-03-30 富利康科技股份有限公司 Water-gas resistant denitration device and catalyst suitable for low-temperature environment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1007830A (en) * 1972-09-01 1977-04-05 Albert B. Welty (Jr.) Removal of nitrogen oxides from flue gas

Also Published As

Publication number Publication date
IT993099B (en) 1975-09-30
FR2197628B1 (en) 1980-03-28
GB1438120A (en) 1976-06-03
BE804317A (en) 1974-02-28
FR2197628A1 (en) 1974-03-29
JPS5123474A (en) 1976-02-25
DE2341242A1 (en) 1974-03-21
JPS5837010B2 (en) 1983-08-13
JPS6059004B2 (en) 1985-12-23
JPS4975464A (en) 1974-07-22
NL7312041A (en) 1974-03-05

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