EP1017478A1 - Procede pour l'abattement du protoxyde d'azote dans les gaz et catalyseurs correspondants - Google Patents
Procede pour l'abattement du protoxyde d'azote dans les gaz et catalyseurs correspondantsInfo
- Publication number
- EP1017478A1 EP1017478A1 EP99920945A EP99920945A EP1017478A1 EP 1017478 A1 EP1017478 A1 EP 1017478A1 EP 99920945 A EP99920945 A EP 99920945A EP 99920945 A EP99920945 A EP 99920945A EP 1017478 A1 EP1017478 A1 EP 1017478A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- zirconium
- zirconia
- catalyst
- gases
- alumina
- 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.)
- Withdrawn
Links
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 239000003054 catalyst Substances 0.000 title claims abstract description 28
- 239000007789 gas Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000001272 nitrous oxide Substances 0.000 title claims abstract description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 150000003754 zirconium Chemical class 0.000 claims abstract description 12
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 7
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 7
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 7
- 230000003647 oxidation Effects 0.000 claims abstract description 6
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 6
- 150000002894 organic compounds Chemical class 0.000 claims abstract description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 35
- 238000006243 chemical reaction Methods 0.000 claims description 15
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 10
- 230000006378 damage Effects 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000003999 initiator Substances 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000000395 magnesium oxide Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000001413 cellular effect Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000005054 agglomeration Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052878 cordierite Inorganic materials 0.000 description 3
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- CMOAHYOGLLEOGO-UHFFFAOYSA-N oxozirconium;dihydrochloride Chemical compound Cl.Cl.[Zr]=O CMOAHYOGLLEOGO-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical group [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000003870 refractory metal Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 description 2
- 244000000626 Daucus carota Species 0.000 description 1
- 235000002767 Daucus carota Nutrition 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical group [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 229910006213 ZrOCl2 Inorganic materials 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical class [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- RCJVRSBWZCNNQT-UHFFFAOYSA-N dichloridooxygen Chemical compound ClOCl RCJVRSBWZCNNQT-UHFFFAOYSA-N 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 229910001657 ferrierite group Inorganic materials 0.000 description 1
- 238000003197 gene knockdown Methods 0.000 description 1
- 238000012812 general test Methods 0.000 description 1
- 229940015043 glyoxal Drugs 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical class [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
-
- 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
- B01D53/8628—Processes characterised by a specific catalyst
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/02—Preparation of nitrogen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
- C01B21/24—Nitric oxide (NO)
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
- C01B21/24—Nitric oxide (NO)
- C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
- C01B21/265—Preparation by catalytic or non-catalytic oxidation of ammonia characterised by the catalyst
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
Definitions
- the present invention relates to gas treatment methods for removing nitrous oxide before rejection to the atmosphere.
- the invention falls within the general framework of reducing the content of greenhouse gases in gaseous effluents of industrial origin discharged into the atmosphere.
- nitrous oxide (2O) to the amplification of the greenhouse effect, which is likely to lead to climate changes with uncontrolled effects, and perhaps also of its participation in the destruction of the ozone layer. Its elimination has thus become a concern of public authorities and manufacturers.
- Nitrous oxide or nitrous oxide, of formula N2O is produced in particular during the synthesis of nitric acid. It is mainly formed in the platinum fabrics on which the oxidation of ammonia occurs by oxygen in the air at high temperature. Besides the desired formation of nitric oxide NO, which occurs according to the reaction
- nitrous oxide N2O is formed due to the parasitic reaction NH3 + 3NO ⁇ N2O + N2 + 3H20, which, in the absence of a specific treatment, crosses the installation without transformation and is released to the atmosphere in tail gases.
- zeolitic catalysts have been proposed to suppress nitrous oxide, for example based on ZSM5-Cu or ZSM5-Rh (Y. Li and JN Armor, Appl. Catal. B.1, 1992, 21), or ferrierite / iron base, (according to French request N ° 97 16803).
- ZSM5-Cu or ZSM5-Rh Y. Li and JN Armor, Appl. Catal. B.1, 1992, 21
- ferrierite / iron base accordinging to French request N ° 97 16803
- the low activity of the catalysts thus obtained below 300 ° C. and the lack of stability of the zeolites at high temperature allow the use of the latter only within a relatively narrow temperature range (350 -600 ° C).
- Refractory oxides have already been used for the destruction of 2O, for example ⁇ -alumina powder injected into the fluidized bed of certain fuel-fired ovens to avoid charging the burnt gases with nitrous oxide (JP-A- 06123406).
- US 5,478,549 also reports the use of zirconia agglomerates to convert the
- N2O formed in the combustion of ammonia on platinum fabrics.
- the means of imparting such a porosity to a refractory solid body is to produce it by agglomeration of refractory metal oxide powders with a particle size of a few micrometers and to consolidate it by a heat treatment at a temperature which does not obliterate this porosity of agglomeration.
- the consolidation temperature must remain below the temperatures (1200-1500 ° C) at which obliterating sintering would occur.
- refractory supports without intergranular porosity such as cellular zirconia or nests cordierite bee
- the refractory oxide catalysts with impregnated intergranular porosity are new products and appear as objects of the present invention.
- the invention applies to the treatment of gases generated by oxidation of ammonia on platinum fabrics in workshops for the production of nitric acid.
- gases generated by oxidation of ammonia on platinum fabrics in workshops for the production of nitric acid.
- N2O present at contents generally between 500 and 2000 ppmv, these gases contain from 10 to 12% of NO and of the order of 20% of H2O.
- the NO content of the treated gas is slightly higher after passing over the catalyst of the invention. This is a side effect, but much appreciated, since it contributes to the increase in the overall yield of the workshop in nitric acid. He was unexpected.
- Other applications are conceivable, such as the treatment of gases from nitric oxidation processes of organic compounds, in particular the synthesis of adipic acid and glyoxal. In these latter cases, the gases which are have are at relatively low temperature.
- a device must be provided in the installation to bring them to a temperature sufficient to initiate the reaction for destroying N2O, the exothermicity of which allows continuation under the conditions of the invention, and a device for removing and recovering calories. thus generated.
- the reactor has a diameter of 2.54 cm.
- the volume of catalyst used is 25 cm 3, ie a bed 50 mm high.
- the reaction gas is prepared from compressed air, nitrogen and standard gas, N2O in 2% N2, NO in 2% N2.
- the water vapor content is adjusted by saturator, according to the laws of vapor pressure. Its composition was stopped at
- the hourly volumetric speed (WH) was set at 10,000 h -1 (gas flow rate of 250 l / h).
- the N2O analyzes were carried out by infrared, the NO analyzes by chemiluminescence. Under the conversion term for nitrous oxide, its rate of disappearance in the gases leaving the reactor or gross conversion was recorded as
- N 2 inlet and N 2 Osortie respectively represent the concentrations of N 2 0 in the gas before and after passage over the catalyst.
- N 2 Osortie respectively represent the concentrations of N 2 0 in the gas before and after passage over the catalyst.
- the catalyst used is a magnesia presented in the form of granules of
- Example 2 Granulated.
- the catalyst is a commercial zirconia (ZR-0404T 1/8 Engelhard) presented in pellets of about 3 cm (1/8 inch) in diameter, whose specific surface is between 30 and 40m 2 / g and the pore volume. between 0.19 and
- Example 2BIS cellular zirconia
- the catalyst used here is a cellular zirconia titrating 94.2% of Zr ⁇ 2,
- This shape is obtained by impregnating a polyurethane foam with zirconia, calcining the polyurethane support and sintering the zirconia structure. It is used in the form of a carrot 1 cm in diameter and 2 cm in height.
- This cellular material without microporosity, has an attractive selectivity but at a very low level of nitrous oxide abatement activity, and therefore of no practical interest.
- the catalyst used here is an alumina containing 93.5% of A ⁇ O ⁇ , in 2-
- the catalyst used here is a grade P alumina from Example 3 modified as follows: 100 cm 3 of beads are covered with an aqueous solution of zirconium oxychloride ZrOCl2, 8H2O at 0.2 mol / liter. The system is abandoned given without stirring at 60 ° C for 3 hours. After cooling, the beads are recovered by filtration on a filtering funnel, very slightly washed with demineralized water and dried at 100 ° C. in an oven. The zirconium content of the beads thus treated is 0.61%, measured by ICP (plasma torch). Under the general test conditions described above, we obtained:
- the catalyst used here is a cordierite formed in a honeycomb structure at the rate of 620,000 cells per square meter (manufactured by Coming) covered with zirconium oxide bonded to silica.
- the deposition (Zr0 2 powder 2 ⁇ m + 10% Si %2) was made at the rate of 122 g / 1 of structure. The results obtained are reported here:
- the dense support even in the open form of the honeycomb, and simply coated with zirconium oxide, does not offer any practical ability to knock down nitrous oxide.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Biomedical Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9807101A FR2779360B1 (fr) | 1998-06-05 | 1998-06-05 | Procede pour l'abattement du protoxyde d'azote dans les gaz et catalyseurs correspondants |
| FR9807101 | 1998-06-05 | ||
| PCT/FR1999/001271 WO1999064139A1 (fr) | 1998-06-05 | 1999-05-31 | Procede pour l'abattement du protoxyde d'azote dans les gaz et catalyseurs correspondants |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1017478A1 true EP1017478A1 (fr) | 2000-07-12 |
Family
ID=9527067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99920945A Withdrawn EP1017478A1 (fr) | 1998-06-05 | 1999-05-31 | Procede pour l'abattement du protoxyde d'azote dans les gaz et catalyseurs correspondants |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP1017478A1 (xx) |
| CN (1) | CN1274297A (xx) |
| AU (1) | AU3833199A (xx) |
| BG (1) | BG104214A (xx) |
| BR (1) | BR9906483A (xx) |
| CA (1) | CA2299562A1 (xx) |
| FR (1) | FR2779360B1 (xx) |
| HR (1) | HRP20000063A2 (xx) |
| HU (1) | HUP0100827A3 (xx) |
| IL (1) | IL134307A0 (xx) |
| PL (1) | PL338216A1 (xx) |
| TR (1) | TR200000336T1 (xx) |
| WO (1) | WO1999064139A1 (xx) |
| ZA (1) | ZA200000838B (xx) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10006103A1 (de) * | 2000-02-11 | 2001-08-16 | Krupp Uhde Gmbh | Katalysator zum Abbau von N¶2¶O, dessen Verwendung bei der Salpetersäureproduktion sowie Verfahren zu seiner Herstellung |
| DE102004024026A1 (de) | 2004-03-11 | 2005-09-29 | W.C. Heraeus Gmbh | Katalysator zur N2O-Zersetzung beim Ostwaldprozess |
| US20050202966A1 (en) | 2004-03-11 | 2005-09-15 | W.C. Heraeus Gmbh | Catalyst for the decomposition of N2O in the Ostwald process |
| PL388518A1 (pl) | 2009-07-10 | 2011-01-17 | Instytut Nawozów Sztucznych | Katalizator do wysokotemperaturowego rozkładu podtlenku azotu |
| CN103586040B (zh) * | 2013-11-13 | 2017-02-08 | 刘崇莲 | 一种处理n2o的催化剂及其制备工艺 |
| PL237044B1 (pl) | 2015-03-13 | 2021-03-08 | Inst Nowych Syntez Chemicznych | Nośnikowy katalizator do redukcji emisji tlenku azotu(I) z instalacji kwasu azotowego oraz sposób jego wytwarzania |
| CN105363451B (zh) * | 2015-12-04 | 2018-01-26 | 中国天辰工程有限公司 | 一种用于分解n2o的高效催化剂及其制备方法和应用 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2546769A1 (fr) * | 1983-06-03 | 1984-12-07 | Pro Catalyse | Supports de catalyseur hydrothermiquement stables a base d'alumine |
| DE3541705A1 (de) * | 1985-11-26 | 1987-05-27 | Eugen Dipl Chem Dr Phil Dumont | Katalysatormassen aus metallkeramik fuer die reduktion von oxiden des schwefels und stickstoffs in gasstroemen |
| JP3029512B2 (ja) * | 1992-08-28 | 2000-04-04 | 出光興産株式会社 | 燃焼ガスの亜酸化窒素除去方法 |
| US5478549A (en) * | 1994-12-15 | 1995-12-26 | E. I. Du Pont De Nemours And Company | Production of nitric oxide |
-
1998
- 1998-06-05 FR FR9807101A patent/FR2779360B1/fr not_active Expired - Fee Related
-
1999
- 1999-05-31 AU AU38331/99A patent/AU3833199A/en not_active Abandoned
- 1999-05-31 TR TR2000/00336T patent/TR200000336T1/xx unknown
- 1999-05-31 CA CA002299562A patent/CA2299562A1/fr not_active Abandoned
- 1999-05-31 PL PL99338216A patent/PL338216A1/xx not_active Application Discontinuation
- 1999-05-31 EP EP99920945A patent/EP1017478A1/fr not_active Withdrawn
- 1999-05-31 CN CN99801299A patent/CN1274297A/zh active Pending
- 1999-05-31 BR BR9906483-9A patent/BR9906483A/pt not_active Application Discontinuation
- 1999-05-31 WO PCT/FR1999/001271 patent/WO1999064139A1/fr not_active Application Discontinuation
- 1999-05-31 IL IL13430799A patent/IL134307A0/xx unknown
- 1999-05-31 HU HU0100827A patent/HUP0100827A3/hu unknown
-
2000
- 2000-02-03 HR HR20000063A patent/HRP20000063A2/hr not_active Application Discontinuation
- 2000-02-21 ZA ZA200000838A patent/ZA200000838B/xx unknown
- 2000-03-02 BG BG104214A patent/BG104214A/bg unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9964139A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999064139A1 (fr) | 1999-12-16 |
| FR2779360A1 (fr) | 1999-12-10 |
| ZA200000838B (en) | 2000-09-13 |
| HRP20000063A2 (en) | 2001-12-31 |
| PL338216A1 (en) | 2000-10-09 |
| FR2779360B1 (fr) | 2000-09-08 |
| CN1274297A (zh) | 2000-11-22 |
| HUP0100827A3 (en) | 2003-02-28 |
| TR200000336T1 (tr) | 2000-10-23 |
| AU3833199A (en) | 1999-12-30 |
| CA2299562A1 (fr) | 1999-12-16 |
| HUP0100827A2 (hu) | 2001-06-28 |
| IL134307A0 (en) | 2001-04-30 |
| BG104214A (bg) | 2000-08-31 |
| BR9906483A (pt) | 2000-09-26 |
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