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
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title abstract 6
- 239000003054 catalyst Substances 0.000 abstract 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 2
- 239000004927 clay Substances 0.000 abstract 2
- 229910052570 clay Inorganic materials 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 2
- 229910052721 tungsten Inorganic materials 0.000 abstract 2
- 239000010937 tungsten Substances 0.000 abstract 2
- 229910052684 Cerium Inorganic materials 0.000 abstract 1
- 239000005909 Kieselgur Substances 0.000 abstract 1
- 229910021536 Zeolite Inorganic materials 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract 1
- 238000005470 impregnation Methods 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910052758 niobium Inorganic materials 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- CGFYHILWFSGVJS-UHFFFAOYSA-N silicic acid;trioxotungsten Chemical compound O[Si](O)(O)O.O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1.O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1.O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1.O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 CGFYHILWFSGVJS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 1
- 239000010457 zeolite Substances 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 0.000 abstract 1
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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (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)
Abstract
1473883 Nitrogen oxide-reduction catalyst MITSUBISHI PETROCHEMICAL CO Ltd HITACHI Ltd and BABCOCK-HITACHI KK 11 July 1974 [17 July 1973] 30865/74 Heading B1E [Also in Division Cl] A catalyst composition used for the reduction of nitrogen oxides comprises iron and tungsten in the form of their oxides in an atomic ratio Fe/W of 1:0.001-1, the catalyst composition having being calcined at 300- 700‹C and having a surface area of at least 5 m<SP>2</SP>/g. The catalyst may contain an oxide of a further element from Groups Ib, IIa, IIIb, IV, Va, VIa, VIII or of the rare earths e.g. Cu, Mg, Al, Si, Ti, Zr, Sn, V, Nb, Cr, Mo, Co, Ni and Ce. In an atomic ratio based on iron not exceeding 1:0.15. The catalyst may be supported, e.g. on silica, alumina, silicaalumina, diatomaceous earth, acid clay, active clay, zeolite, titania or zirconia. The catalyst may be prepared by impregnation or precipitation. Silicotungstic acid is a preferred starting material for both the tungsten and silica carrier.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48081427A JPS5057946A (en) | 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 (en) |
| DE (1) | DE2434416C2 (en) |
| FR (1) | FR2237678B1 (en) |
| GB (1) | GB1473883A (en) |
| IT (1) | IT1017134B (en) |
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 (en) * | 2000-01-14 | 2001-07-19 | Krupp Uhde Gmbh | Method for removal of nox and 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 (en) * | 2014-01-27 | 2014-06-25 | 济南大学 | Ferro-tungsten composite oxide denitrification catalyst with flower petal structure and preparation method and application of ferro-tungsten composite oxide denitrification catalyst with flower petal structure |
| CN105664912A (en) * | 2015-12-31 | 2016-06-15 | 中国科学院生态环境研究中心 | Cerium-tin-zirconium composite oxide catalyst, and preparation method and use thereof |
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 (en) * | 1984-07-17 | 1986-02-08 | シ−ビ−エムエム・インタ−ナシヨナル・リミタ−ダ | Catalyst for removing nitrogen oxide in exhaust gas |
| DE3502866A1 (en) * | 1984-09-19 | 1986-03-20 | Klaus Prof. Dr.rer.nat. 4430 Steinfurt Mangold | Two-stage process and apparatus for purifying combustion gases |
| SE464688B (en) * | 1989-02-27 | 1991-06-03 | Eka Nobel Ab | CATALYST FOR REDUCING NITROGEN OXIDES AND USING THEREOF |
| JP4895090B2 (en) * | 2005-12-28 | 2012-03-14 | 株式会社豊田中央研究所 | NOX selective reduction catalyst |
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 (en) * | 1964-08-29 | 1968-01-25 | Hamburger Gaswerke Gmbh | Process for removing nitrogen oxides from gases by catalytic reduction thereof to nitrogen |
| DE1937552A1 (en) * | 1969-07-24 | 1971-02-11 | Basf Ag | Process for the selective removal of nitrogen dioxide from gases |
| BE756150A (en) * | 1969-09-16 | 1971-02-15 | Johnson Matthey & Cy Ltd | IMPROVEMENTS TO CATALYTIC REACTIONS |
| 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/en active
- 1974-07-17 FR FR7424893A patent/FR2237678B1/fr not_active Expired
- 1974-07-17 DE DE19742434416 patent/DE2434416C2/en 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 (en) * | 2000-01-14 | 2001-07-19 | Krupp Uhde Gmbh | Method for removal of nox and 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 (en) * | 2014-01-27 | 2014-06-25 | 济南大学 | Ferro-tungsten composite oxide denitrification catalyst with flower petal structure and preparation method and application of ferro-tungsten composite oxide denitrification catalyst with flower petal structure |
| CN103877986B (en) * | 2014-01-27 | 2016-01-20 | 济南大学 | A kind of ferrotungsten composite oxides denitrating catalyst with sheet flower-like structure and preparation method thereof and application |
| CN105664912A (en) * | 2015-12-31 | 2016-06-15 | 中国科学院生态环境研究中心 | Cerium-tin-zirconium composite oxide catalyst, and preparation method and use thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2434416A1 (en) | 1975-02-13 |
| FR2237678B1 (en) | 1982-01-29 |
| IT1017134B (en) | 1977-07-20 |
| FR2237678A1 (en) | 1975-02-14 |
| JPS5057946A (en) | 1975-05-20 |
| DE2434416C2 (en) | 1984-09-13 |
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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 |