GB1473883A - Process for reducing nitrogen oxides - Google Patents
Process for reducing nitrogen oxidesInfo
- Publication number
- GB1473883A GB1473883A GB3086574A GB3086574A GB1473883A GB 1473883 A GB1473883 A GB 1473883A GB 3086574 A GB3086574 A GB 3086574A GB 3086574 A GB3086574 A GB 3086574A GB 1473883 A GB1473883 A GB 1473883A
- Authority
- GB
- United Kingdom
- Prior art keywords
- catalyst
- hitachi
- july
- tungsten
- 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
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
- B01J23/85—Chromium, molybdenum or tungsten
-
- 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
- B01D2255/204—Alkaline earth metals
- B01D2255/2047—Magnesium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/206—Rare earth metals
- B01D2255/2065—Cerium
-
- 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
- B01D2255/20753—Nickel
-
- 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
-
- 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
- B01D2255/2092—Aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/30—Silica
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP48081427A JPS5057946A (de) | 1973-07-17 | 1973-07-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1473883A true GB1473883A (en) | 1977-05-18 |
Family
ID=13746057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3086574A Expired GB1473883A (en) | 1973-07-17 | 1974-07-11 | Process for reducing nitrogen oxides |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5057946A (de) |
DE (1) | DE2434416C2 (de) |
FR (1) | FR2237678B1 (de) |
GB (1) | GB1473883A (de) |
IT (1) | IT1017134B (de) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4720478A (en) * | 1984-08-17 | 1988-01-19 | Huels Aktiengesellschaft | Catalyst for the orthomethylation of phenols |
WO2001051181A1 (de) * | 2000-01-14 | 2001-07-19 | Krupp Uhde Gmbh | Verfahren zur beseitigung von nox und n2o |
US7985391B2 (en) | 2007-06-25 | 2011-07-26 | Johnson Matthey Public Limited Company | Non-zeolite base metal SCR catalyst |
WO2011116907A2 (en) | 2010-03-26 | 2011-09-29 | Umicore Ag & Co. Kg | Zrox, ce-zrox, ce-zr-reox as host matrices for redox active cations for low temperature, hydrothermally durable and poison resistant scr catalysts |
US8529853B2 (en) | 2010-03-26 | 2013-09-10 | Umicore Ag & Co. Kg | ZrOx, Ce-ZrOx, Ce-Zr-REOx as host matrices for redox active cations for low temperature, hydrothermally durable and poison resistant SCR catalysts |
CN103877986A (zh) * | 2014-01-27 | 2014-06-25 | 济南大学 | 一种具有片花状结构的铁钨复合氧化物脱硝催化剂及其制备方法及应用 |
CN105664912A (zh) * | 2015-12-31 | 2016-06-15 | 中国科学院生态环境研究中心 | 一种铈锡锆复合氧化物催化剂、制备方法及其用途 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5117173A (en) * | 1974-08-01 | 1976-02-10 | Japan Gasoline | Haigasuchuno chitsusosankabutsukangenho |
US4182745A (en) * | 1974-08-06 | 1980-01-08 | Jgc Corporation | Catalyst for reducing nitrogen oxides in a waste gas and a process for catalytically reducing nitrogen oxides contained in a waste gas |
JPS52111482A (en) * | 1976-03-15 | 1977-09-19 | Hitachi Zosen Corp | Flue gas denitration catalyst with high activity |
JPS6128454A (ja) * | 1984-07-17 | 1986-02-08 | シ−ビ−エムエム・インタ−ナシヨナル・リミタ−ダ | 排ガス中の窒素酸化物除去用触媒 |
DE3502866A1 (de) * | 1984-09-19 | 1986-03-20 | Klaus Prof. Dr.rer.nat. 4430 Steinfurt Mangold | Zweistufen-verfahren und vorrichtung zur reinigung von verbrennungsgasen |
SE464688B (sv) * | 1989-02-27 | 1991-06-03 | Eka Nobel Ab | Katalysator foer reducering av kvaeveoxider samt anvaendning daerav |
JP4895090B2 (ja) * | 2005-12-28 | 2012-03-14 | 株式会社豊田中央研究所 | Nox選択還元触媒 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3279884A (en) * | 1963-10-31 | 1966-10-18 | Basf Ag | Selective removal of oxides of nitrogen from gas mixtures containing oxygen |
DE1259298B (de) * | 1964-08-29 | 1968-01-25 | Hamburger Gaswerke Gmbh | Verfahren zur Entfernung von Stickoxyden aus Gasen durch katalytische Reduktion derselben zu Stickstoff |
DE1937552A1 (de) * | 1969-07-24 | 1971-02-11 | Basf Ag | Verfahren zur selektiven Entfernung von Stickstoffdioxid aus Gasen |
BE756150A (fr) * | 1969-09-16 | 1971-02-15 | Johnson Matthey & Cy Ltd | Perfectionnements aux reactions catalytiques |
CA970348A (en) * | 1970-08-07 | 1975-07-01 | Snamprogetti S.P.A. | Catalytic composition for the production of unsaturated nitriles |
-
1973
- 1973-07-17 JP JP48081427A patent/JPS5057946A/ja active Pending
-
1974
- 1974-07-11 GB GB3086574A patent/GB1473883A/en not_active Expired
- 1974-07-12 IT IT2513474A patent/IT1017134B/it active
- 1974-07-17 FR FR7424893A patent/FR2237678B1/fr not_active Expired
- 1974-07-17 DE DE19742434416 patent/DE2434416C2/de not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4720478A (en) * | 1984-08-17 | 1988-01-19 | Huels Aktiengesellschaft | Catalyst for the orthomethylation of phenols |
WO2001051181A1 (de) * | 2000-01-14 | 2001-07-19 | Krupp Uhde Gmbh | Verfahren zur beseitigung von nox und n2o |
US7985391B2 (en) | 2007-06-25 | 2011-07-26 | Johnson Matthey Public Limited Company | Non-zeolite base metal SCR catalyst |
US8091351B2 (en) | 2007-06-25 | 2012-01-10 | Johnson Matthey Public Limited Company | Non-zeolite base metal SCR catalyst |
US8367578B2 (en) | 2007-06-25 | 2013-02-05 | Johnson Matthey Public Limited Company | Non-zeolite base metal SCR catalyst |
WO2011116907A2 (en) | 2010-03-26 | 2011-09-29 | Umicore Ag & Co. Kg | Zrox, ce-zrox, ce-zr-reox as host matrices for redox active cations for low temperature, hydrothermally durable and poison resistant scr catalysts |
US8529853B2 (en) | 2010-03-26 | 2013-09-10 | Umicore Ag & Co. Kg | ZrOx, Ce-ZrOx, Ce-Zr-REOx as host matrices for redox active cations for low temperature, hydrothermally durable and poison resistant SCR catalysts |
CN103877986A (zh) * | 2014-01-27 | 2014-06-25 | 济南大学 | 一种具有片花状结构的铁钨复合氧化物脱硝催化剂及其制备方法及应用 |
CN103877986B (zh) * | 2014-01-27 | 2016-01-20 | 济南大学 | 一种具有片花状结构的铁钨复合氧化物脱硝催化剂及其制备方法及应用 |
CN105664912A (zh) * | 2015-12-31 | 2016-06-15 | 中国科学院生态环境研究中心 | 一种铈锡锆复合氧化物催化剂、制备方法及其用途 |
Also Published As
Publication number | Publication date |
---|---|
FR2237678B1 (de) | 1982-01-29 |
IT1017134B (it) | 1977-07-20 |
DE2434416C2 (de) | 1984-09-13 |
DE2434416A1 (de) | 1975-02-13 |
FR2237678A1 (de) | 1975-02-14 |
JPS5057946A (de) | 1975-05-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
429A | Application made for amendment of specification (sect. 29/1949) | ||
429H | Application (made) for amendment of specification now open to opposition (sect. 29/1949) | ||
429D | Case decided by the comptroller ** specification amended (sect. 29/1949) | ||
SP | Amendment (slips) printed | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19940710 |