CA1032734A - Procede de reduction des oxydes d'azote en azote et nouveaux composes de catalyseurs a cette fin - Google Patents

Procede de reduction des oxydes d'azote en azote et nouveaux composes de catalyseurs a cette fin

Info

Publication number
CA1032734A
CA1032734A CA215,718A CA215718A CA1032734A CA 1032734 A CA1032734 A CA 1032734A CA 215718 A CA215718 A CA 215718A CA 1032734 A CA1032734 A CA 1032734A
Authority
CA
Canada
Prior art keywords
nitrogen
catalyst compositions
novel catalyst
compositions therefor
nitrogen oxides
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
CA215,718A
Other languages
English (en)
Other versions
CA215718S (en
Inventor
Shimpei Matsuda
Shigeo Uno
Fumito Nakajima
Makoto Imanari
Yoshihisa Watanabe
Toshikatsu Mori
Masato Takeuchi
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.)
Hitachi Ltd
Mitsubishi Petrochemical Co Ltd
Mitsubishi Hitachi Power Systems Ltd
Original Assignee
Babcock Hitachi KK
Hitachi Ltd
Mitsubishi Petrochemical Co 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
Priority claimed from JP48137684A external-priority patent/JPS5089288A/ja
Priority claimed from JP48137683A external-priority patent/JPS5223796B2/ja
Application filed by Babcock Hitachi KK, Hitachi Ltd, Mitsubishi Petrochemical Co Ltd filed Critical Babcock Hitachi KK
Application granted granted Critical
Publication of CA1032734A publication Critical patent/CA1032734A/fr
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
    • 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
    • B01J23/835—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 germanium, tin or lead
    • 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
    • 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
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24—Chromium, molybdenum or tungsten
    • 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
    • B01D2255/20769—Molybdenum
    • 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
    • B01D2255/20776—Tungsten
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/209—Other metals
    • B01D2255/2094—Tin

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
CA215,718A 1973-12-12 1974-12-11 Procede de reduction des oxydes d'azote en azote et nouveaux composes de catalyseurs a cette fin Expired CA1032734A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP48137684A JPS5089288A (fr) 1973-12-12 1973-12-12
JP48137683A JPS5223796B2 (fr) 1973-12-12 1973-12-12

Publications (1)

Publication Number Publication Date
CA1032734A true CA1032734A (fr) 1978-06-13

Family

ID=26470915

Family Applications (1)

Application Number Title Priority Date Filing Date
CA215,718A Expired CA1032734A (fr) 1973-12-12 1974-12-11 Procede de reduction des oxydes d'azote en azote et nouveaux composes de catalyseurs a cette fin

Country Status (3)

Country Link
US (1) US3976745A (fr)
CA (1) CA1032734A (fr)
GB (1) GB1495397A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5224996A (en) * 1975-08-21 1977-02-24 Kyushu Refract Co Ltd Process for producing catalist for the reduction of nitrogen oxides
JPS52122293A (en) * 1976-04-08 1977-10-14 Nippon Shokubai Kagaku Kogyo Co Ltd Catalyst for purifying nox
US4314977A (en) * 1980-05-27 1982-02-09 Conoco Inc. Method for removing hydrogen sulfide and nitric oxide from gaseous mixtures
JPH0611381B2 (ja) * 1986-10-17 1994-02-16 株式会社豊田中央研究所 排ガス浄化方法
GB2221852A (en) * 1988-08-18 1990-02-21 Ti Corporate Services Vehicle exhaust gas catalysts
JPH04371231A (ja) * 1991-06-18 1992-12-24 N E Chemcat Corp 排気ガス浄化用触媒
US5743929A (en) * 1995-08-23 1998-04-28 The Boc Group, Inc. Process for the production of high purity carbon dioxide
JP3572548B2 (ja) * 2002-05-24 2004-10-06 日本酸素株式会社 ガス精製方法及び装置
CN105126619A (zh) * 2015-07-24 2015-12-09 攀枝花市正源科技有限责任公司 燃油汽车/轮船尾气净化用的钛钨硅复合粉及制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE487705A (fr) * 1947-05-21
GB662460A (en) 1949-02-17 1951-12-05 Dirk Willem Van Krevelen Process for the removal of carbon monoxide from a gas mixture containing carbon monoxide and nitric oxide
DE1259258B (de) * 1955-09-08 1968-01-18 Ver Armaturen Gmbh Vorrichtung zum Absperren eines Wasserpfostens
US3885020A (en) * 1971-10-28 1975-05-20 Univ Southern California Method of oxidizing hydrocarbons and oxygenated hydrocarbons to carbon dioxide and water

Also Published As

Publication number Publication date
US3976745A (en) 1976-08-24
GB1495397A (en) 1977-12-21

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