IT993099B - Processo per la rimozione di ossidi di azoto da gas di combustio ne - Google Patents

Processo per la rimozione di ossidi di azoto da gas di combustio ne

Info

Publication number
IT993099B
IT993099B IT2839773A IT2839773A IT993099B IT 993099 B IT993099 B IT 993099B IT 2839773 A IT2839773 A IT 2839773A IT 2839773 A IT2839773 A IT 2839773A IT 993099 B IT993099 B IT 993099B
Authority
IT
Italy
Prior art keywords
removal
nitrogen oxides
combust gas
combust
gas
Prior art date
Application number
IT2839773A
Other languages
English (en)
Italian (it)
Original Assignee
Exxon Research 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 Engineering Co filed Critical Exxon Research Engineering Co
Application granted granted Critical
Publication of IT993099B publication Critical patent/IT993099B/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
    • B01D53/8637—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)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Treating Waste Gases (AREA)
  • Chimneys And Flues (AREA)
IT2839773A 1972-09-01 1973-08-30 Processo per la rimozione di ossidi di azoto da gas di combustio ne IT993099B (it)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
IT993099B true IT993099B (it) 1975-09-30

Family

ID=23095888

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2839773A IT993099B (it) 1972-09-01 1973-08-30 Processo per la rimozione di ossidi di azoto da gas di combustio ne

Country Status (8)

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

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1438120A (en) * 1972-09-01 1976-06-03 Exxon Research Engineering Co Removal of nitrogen oxides from flue gas
JPS5012393B2 (xx) * 1973-03-13 1975-05-12
JPS5523086B2 (xx) * 1973-03-26 1980-06-20
JPS5511892B2 (xx) * 1973-04-18 1980-03-28
JPS525433B2 (xx) * 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 (xx) * 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 (xx) * 1973-08-17 1975-04-16
JPS5621450B2 (xx) * 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 (xx) * 1974-06-11 1980-04-22
JPS5116273A (ja) * 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 (xx) * 1974-09-02 1976-03-09 Asahi Chemical Ind
JPS539598B2 (xx) * 1974-09-10 1978-04-06
JPS542913B2 (xx) * 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 (xx) * 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 (ja) * 1975-09-29 1985-03-08 株式会社日立製作所 排熱回収ボイラ装置
NL7601371A (nl) * 1976-02-11 1977-08-15 Shell Int Research Werkwijze voor het gelijktijdig verwijderen van stikstofoxyden en zwaveloxyden uit een gasstroom.
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 (fr) * 1979-10-01 1981-04-10 Uop Inc Procede de separation simultanee des oxydes de soufre et d'azote d'un melange gazeux
JPS56150421A (en) * 1980-04-23 1981-11-20 Hitachi Ltd Cleaning of waste gas
DE3140657C2 (de) * 1981-10-13 1985-04-18 Alkem Gmbh, 6450 Hanau Verfahren zum Endkonditionieren von Schadstoffe, insbesondere radioaktive und/oder toxische Schadstoffe, enthaltender wäßriger Lösung
DE3423744A1 (de) * 1984-06-28 1986-01-09 Bergwerksverband Gmbh, 4300 Essen Verfahren zur abscheidung von so(pfeil abwaerts)2(pfeil abwaerts) und no(pfeil abwaerts)x(pfeil abwaerts)
JPH0747130B2 (ja) * 1991-07-23 1995-05-24 株式会社コロイドリサーチ 窒素酸化物分解触媒の製造方法
CN112569777A (zh) * 2019-09-27 2021-03-30 富利康科技股份有限公司 适用于低温环境的抗水气脱硝装置及触媒

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1438120A (en) * 1972-09-01 1976-06-03 Exxon Research Engineering Co Removal of nitrogen oxides from flue gas

Also Published As

Publication number Publication date
FR2197628A1 (xx) 1974-03-29
NL7312041A (xx) 1974-03-05
BE804317A (fr) 1974-02-28
JPS5123474A (xx) 1976-02-25
JPS5837010B2 (ja) 1983-08-13
JPS6059004B2 (ja) 1985-12-23
GB1438120A (en) 1976-06-03
JPS4975464A (xx) 1974-07-22
CA1007830A (en) 1977-04-05
DE2341242A1 (de) 1974-03-21
FR2197628B1 (xx) 1980-03-28

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