WO2011132741A1 - Production method for ozone gas reduction catalyst support and catalyst support - Google Patents
Production method for ozone gas reduction catalyst support and catalyst support Download PDFInfo
- Publication number
- WO2011132741A1 WO2011132741A1 PCT/JP2011/059841 JP2011059841W WO2011132741A1 WO 2011132741 A1 WO2011132741 A1 WO 2011132741A1 JP 2011059841 W JP2011059841 W JP 2011059841W WO 2011132741 A1 WO2011132741 A1 WO 2011132741A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- catalyst
- ozone gas
- catalyst support
- catalyst carrier
- gas reduction
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 66
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 21
- 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 15
- 239000000126 substance Substances 0.000 claims abstract description 12
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 33
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical group [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 7
- 229910052763 palladium Inorganic materials 0.000 claims description 5
- 238000005245 sintering Methods 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 2
- 239000000758 substrate Substances 0.000 abstract description 14
- 239000000376 reactant Substances 0.000 abstract description 7
- 230000003197 catalytic effect Effects 0.000 abstract description 4
- 239000010935 stainless steel Substances 0.000 abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 4
- -1 platinum group metal oxide Chemical class 0.000 abstract description 3
- 239000000919 ceramic Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract 2
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 31
- 238000006722 reduction reaction Methods 0.000 description 18
- 239000000243 solution Substances 0.000 description 7
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910001960 metal nitrate Inorganic materials 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 150000004703 alkoxides Chemical class 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
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- HBEQXAKJSGXAIQ-UHFFFAOYSA-N oxopalladium Chemical compound [Pd]=O HBEQXAKJSGXAIQ-UHFFFAOYSA-N 0.000 description 1
- 229910003445 palladium oxide Inorganic materials 0.000 description 1
- GPNDARIEYHPYAY-UHFFFAOYSA-N palladium(ii) nitrate Chemical compound [Pd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O GPNDARIEYHPYAY-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Images
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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
-
- 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
-
- 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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/44—Palladium
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0225—Coating of metal substrates
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0225—Coating of metal substrates
- B01J37/0226—Oxidation of the substrate, e.g. anodisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1023—Palladium
-
- 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
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/106—Ozone
-
- 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
- B01D53/8671—Removing components of defined structure not provided for in B01D53/8603 - B01D53/8668
- B01D53/8675—Ozone
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Definitions
- the present invention relates to a catalyst carrier for reducing ozone gas and a method for producing the same.
- Oxidation or reduction is performed by using alumina as a carrier on a medium substrate, carrying a catalyst substance on the medium, and passing a gas containing a reactant through a linear flow path formed in the structure.
- Oxidation or reduction is performed by using alumina as a carrier on a medium substrate, carrying a catalyst substance on the medium, and passing a gas containing a reactant through a linear flow path formed in the structure.
- restoration it reduced by passing the gas containing ozone gas through the catalyst cylinder packed with the granular manganese dioxide.
- Patent Document 1 discloses that after roughening the surface of a metal, fine particles having catalyst carrying activity are bound to the surface to carry an ultrafine catalyst material, and a sponge-like metal is used. Has been.
- Patent Documents 2 and 4 a silica-alumina compound to which 2.5 to 10% by mass of silica is added based on the total mass, a gelled product is produced by a gelation reaction from a metal alkoxide of aluminum and silicon. Is freeze-dried to obtain a porous structure.
- Patent Documents 3 and 4 a mixed conductive oxide of oxygen ion conduction and electron conduction is dispersed in an aqueous solution or organic solvent solution of nitrate, chloride, or chloride of palladium, platinum, and / or rhodium, and the solvent is evaporated and removed. , Heat treatment at 600 ° C. or higher to obtain a catalyst material for removing nitrogen oxides.
- Patent Documents 1 to 4 relate to improvement of the contact area between the catalyst and a substance that is brought into contact with the catalyst to cause an oxidation or reduction reaction (hereinafter referred to as a reactive substance), or prevent bonding between the catalytic substances, although it has been disclosed for uniform dispersion and the like, no improvement has been considered for the catalyst support substrate.
- Patent Documents 1 to 4 although it can be understood that the area where the reactant is brought into contact with the catalyst is large to some extent, since the flow path formed in the honeycomb structure is linear, the catalyst substance and the reactant can be contacted. In order to improve the property and increase the reaction efficiency, it is necessary to lengthen the flow path, and it is difficult to make the structure small.
- Patent Documents 1 to 4 as described above, the reactant is present in the fluid, and the fluid is allowed to pass from one side to the other side. There was a problem that it was scarce, very brittle and vulnerable to impact. Further, in the case of a honeycomb structure made of a stainless steel thin plate, there is a problem that it is difficult to form a flow path smaller than a certain size, and the cost is increased.
- the problem to be solved is to produce a base material for a catalyst carrier that has excellent rigidity and further increases the contact possibility between the catalytic material and the reactant, instead of the honeycomb structure, and the granular material as the catalytic material.
- Manganese dioxide is easily crushed, easily absorbs moisture, and has the property of becoming liquefied if it absorbs too much moisture, and there is a problem in durability, and therefore, an alternative catalyst material is employed.
- the present invention is a catalyst having excellent durability and efficiency in place of manganese dioxide, which is currently generally used for reducing ozone gas, and producing a catalyst-supporting substrate having excellent rigidity and economy.
- a base material of the catalyst carrier is a porous body obtained by sintering a material composed of a single metal mesh or a material in which a plurality of metal meshes are laminated.
- a reduction catalyst carrier is obtained by forming an alumina thin layer in which a platinum group metal or oxide thereof, or a mixture thereof is dispersed and supported on the surface of the substrate.
- the present invention can secure a wide surface area of the alumina thin layer as a support by using a porous substrate, can freely select the pore diameter to some extent according to the amount of reactant contained in the gas, There is an advantage that the total thickness can be flexibly adjusted by the number of sheets.
- a plate-like porous body can be obtained by diffusion bonding, cutting and bending are possible, the degree of freedom of molding is high, and the amount of catalyst supported can be changed for each individual substrate. It is also possible to save expensive catalyst materials.
- the present invention for the reduction treatment of ozone gas, as a synergistic effect of the above advantages, the treatment efficiency of ozone gas is improved and the economy is excellent.
- FIGS. 1A and 1B are diagrams showing the results of experiments for confirming the effects of the present invention.
- the method for producing an ozone gas reduction catalyst carrier of the present invention comprises a catalyst comprising a porous body obtained by sintering a reduction catalyst carrier of ozone gas, a material made of a single metal mesh, or a material in which a plurality of metal meshes are laminated.
- An ozone gas reduction catalyst carrier is obtained by forming a thin alumina layer on which platinum group metals, oxides thereof, or mixtures thereof are dispersed and supported on the surface of the substrate.
- the catalyst material a platinum group metal, its oxide, or a mixture thereof can be selected. However, if the catalyst material is palladium metal, a simple substance of its oxide, or a mixture thereof, a suitable ozone gas reduction catalyst.
- a carrier is obtained.
- ozone gas reduction catalyst carrier of the present invention for example, a plurality of catalyst carriers are used as necessary, and ozone gas-containing gas is passed through each of them to efficiently reduce the ozone gas.
- a solution obtained by adding a platinum group metal nitrate powder as a catalyst material to an alumina sol solution is applied to the base material that has been previously roughened, or applied to the solution.
- the substrate is immersed and adhered, it is formed by firing at a temperature of 600 ° C. to 700 ° C. to produce an ozone gas reduction catalyst carrier.
- an alumina thin layer is similarly formed on the surface of the base material in advance without adding platinum group metal nitrate powder, and then immersed in a platinum group metal nitrate solution.
- the ozone gas reduction catalyst carrier is manufactured by baking with.
- the ozone gas reduction catalyst carrier produced in the present invention is used as follows.
- a porous material obtained by sintering a material obtained by laminating a plurality of metal meshes is used as a base material for a catalyst support, and a catalyst support in which an alumina thin layer is formed on the surface of the base material by dispersing and supporting platinum group metal as a catalyst material.
- a plurality of bodies are installed in a container, and a gas containing ozone gas is passed through the container to reduce ozone gas harmful to the human body into harmless oxygen.
- the reason why the sintered wire mesh is used is that the degree of freedom of opening is high.
- wire nets that are readily available in the market have abundant apertures ranging from 0.005 mm to 1 cm or more, and the apertures, rigidity, and porosity are different. This is because the material has excellent rigidity.
- the wires are firmly fused with the wires in contact with the individual wires, and there is an advantage that the wires are not displaced, that is, a stable open state can be secured even when stress is applied.
- the wire mesh used for the base material of the catalyst carrier is preferably made of, for example, a stainless material. This is because it has excellent corrosion resistance, is marketable, and is easily available. Of course, a wire mesh made of copper other than stainless steel, a copper alloy, nickel, or the like may be used, but the other metal to be mixed is preferably a material considering corrosion resistance.
- the SV value (l / h) obtained by dividing the reaction capacity (m 3 / hour) by the amount of filtration material (for example, 1 liter). ) Is preferably carried out at 1000 to 100,000 l / h. The reason is that if it is less than 1000 l / h, the catalyst becomes excessive, and its capacity cannot be fully used. If it is greater than 100000 l / h, the catalyst capacity is exceeded, and there is a high possibility that the reduction cannot be performed sufficiently. Because.
- the LV value (cm / sec) obtained by dividing the reaction capacity (m 3 / hour) by the area (m 2 ) is 10 to 200 cm / sec. It is desirable to do. The reason for this is that if it is less than 10 cm / sec, the catalyst does not function sufficiently and the efficiency with respect to the catalyst capacity is lowered, and if it is greater than 200 cm / sec, the catalyst capacity is exceeded and it becomes difficult to treat the entire amount.
- Palladium nitrate was added into an alumina sol solution, and the above-mentioned catalyst supporting substrate was immersed in this solution. Then, this was dried and fired at a temperature of about 650 ° C. in an air atmosphere. As a result, an alumina thin layer was obtained on the surface of the substrate, and at the same time, a catalyst carrier in which palladium, palladium oxide, or a mixture thereof as a catalyst material was dispersed and supported in the alumina thin layer was produced.
- the estimated thickness of the alumina thin layer was 0.005 mm, the palladium catalyst material particle diameter was about 10 to 20 nm, and the catalyst loading was about 1.7 g / liter of catalyst.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (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
Description
SUS316製の16、20、60、及び30メッシュの各1枚、計4枚の金網を積層し、真空熱処理炉で真空及び加圧下で約1200~1300℃で金網同士を焼結して、厚さ1.8mm、最小開孔径0.25mm(250μm)、空隙率約60%の多孔体の触媒担持体の基材を得て、直径50mmの円板状に成形した。 (Manufacturing)
A total of 4 wire meshes, each of 16, 20, 60, and 30 mesh made of SUS316, are laminated, and the wire meshes are sintered at about 1200-1300 ° C under vacuum and pressure in a vacuum heat treatment furnace. A base material of a porous catalyst support having a thickness of 1.8 mm, a minimum opening diameter of 0.25 mm (250 μm), and a porosity of about 60% was obtained and molded into a disk shape having a diameter of 50 mm.
上記のようにして製造した本発明の触媒担持体について、オゾナイザーで発生させたオゾンガスをそのままの状態で上記の触媒担持体中を通過させて、オゾンガス濃度が5~60000ppm(w)の範囲で、還元率を測定した。その測定結果を、図1(a)(b)に示す。 (Implementation)
About the catalyst carrier of the present invention produced as described above, the ozone gas generated by the ozonizer is passed through the catalyst carrier as it is, and the ozone gas concentration is in the range of 5 to 60000 ppm (w). The reduction rate was measured. The measurement results are shown in FIGS.
Claims (3)
- 1枚の金網からなる素材、又は複数枚の金網を積層した素材を焼結した多孔体を触媒担持体の基材とし、当該基材の表面に、白金族金属あるいはその酸化物、あるいはそれらの混合物を分散担持させたアルミナ薄層を形成することを特徴とするオゾンガス還元触媒担持体の製造方法。 A porous body obtained by sintering a material composed of a single metal mesh or a material obtained by laminating a plurality of metal meshes is used as a base material of a catalyst carrier, and a platinum group metal or an oxide thereof, A method for producing an ozone gas reduction catalyst carrier, comprising forming an alumina thin layer on which a mixture is dispersed and supported.
- 触媒物質がパラジウム金属あるいは、その酸化物の単体、あるいはそれらの混合物であることを特徴とする請求項1記載のオゾンガス還元触媒担持体の製造方法。 2. The method for producing an ozone gas reduction catalyst carrier according to claim 1, wherein the catalyst substance is palladium metal, an oxide simple substance, or a mixture thereof.
- 請求項1または2のいずれかに記載された製造方法により製造される触媒担持体。 A catalyst carrier produced by the production method according to claim 1 or 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011800035490A CN102481567A (en) | 2010-04-23 | 2011-04-21 | Production method for ozone gas reduction catalyst support and catalyst support |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010100190A JP2011230017A (en) | 2010-04-23 | 2010-04-23 | Production method for ozone gas reduction catalyst support and catalyst support |
JP2010-100190 | 2010-04-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011132741A1 true WO2011132741A1 (en) | 2011-10-27 |
Family
ID=44834257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/059841 WO2011132741A1 (en) | 2010-04-23 | 2011-04-21 | Production method for ozone gas reduction catalyst support and catalyst support |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP2011230017A (en) |
KR (1) | KR20120022794A (en) |
CN (1) | CN102481567A (en) |
WO (1) | WO2011132741A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105312061A (en) * | 2014-06-24 | 2016-02-10 | 江苏瑞丰科技实业有限公司 | Normal-temperature ozone-removal catalytic material |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109351182A (en) * | 2018-11-27 | 2019-02-19 | 蓝天环保设备工程股份有限公司 | A kind of Sinter-plate Filter with VOCs remove |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02307509A (en) * | 1989-05-19 | 1990-12-20 | Sakai Chem Ind Co Ltd | Ozone decomposer |
JPH03157143A (en) * | 1989-11-16 | 1991-07-05 | Nippon Shokubai Kagaku Kogyo Co Ltd | Catalyst for purification of exhaust gas from motorcycle |
JPH0810619A (en) * | 1994-06-29 | 1996-01-16 | N E Chemcat Corp | Ozone decomposing catalyst and decomposing method |
JPH08309205A (en) * | 1995-05-22 | 1996-11-26 | Matsushita Electric Ind Co Ltd | Catalytic body and its production |
JPH09117671A (en) * | 1995-10-25 | 1997-05-06 | Matsushita Electric Ind Co Ltd | Catalytic member and its preparation |
JP2006015184A (en) * | 2004-06-30 | 2006-01-19 | Micro Reactor System:Kk | Environment-cleaning micro-reactor system |
JP2006218351A (en) * | 2005-02-08 | 2006-08-24 | Seiko Epson Corp | Ozonolysis method, ozonolysis apparatus and treatment apparatus |
JP2007252640A (en) * | 2006-03-23 | 2007-10-04 | Orion Mach Co Ltd | Adsorbing purifying apparatus |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1025532C (en) * | 1990-08-22 | 1994-07-27 | 黄振钧 | Catalyst for removing and separating azone, and their preparing method and use |
CN1316300A (en) * | 2001-01-15 | 2001-10-10 | 上海欧臣环境高科技有限责任公司 | Catalyst for reducing ozone (O3) and its preparing process |
-
2010
- 2010-04-23 JP JP2010100190A patent/JP2011230017A/en not_active Withdrawn
-
2011
- 2011-04-21 CN CN2011800035490A patent/CN102481567A/en active Pending
- 2011-04-21 WO PCT/JP2011/059841 patent/WO2011132741A1/en active Application Filing
- 2011-04-21 KR KR1020117024718A patent/KR20120022794A/en not_active Application Discontinuation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02307509A (en) * | 1989-05-19 | 1990-12-20 | Sakai Chem Ind Co Ltd | Ozone decomposer |
JPH03157143A (en) * | 1989-11-16 | 1991-07-05 | Nippon Shokubai Kagaku Kogyo Co Ltd | Catalyst for purification of exhaust gas from motorcycle |
JPH0810619A (en) * | 1994-06-29 | 1996-01-16 | N E Chemcat Corp | Ozone decomposing catalyst and decomposing method |
JPH08309205A (en) * | 1995-05-22 | 1996-11-26 | Matsushita Electric Ind Co Ltd | Catalytic body and its production |
JPH09117671A (en) * | 1995-10-25 | 1997-05-06 | Matsushita Electric Ind Co Ltd | Catalytic member and its preparation |
JP2006015184A (en) * | 2004-06-30 | 2006-01-19 | Micro Reactor System:Kk | Environment-cleaning micro-reactor system |
JP2006218351A (en) * | 2005-02-08 | 2006-08-24 | Seiko Epson Corp | Ozonolysis method, ozonolysis apparatus and treatment apparatus |
JP2007252640A (en) * | 2006-03-23 | 2007-10-04 | Orion Mach Co Ltd | Adsorbing purifying apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105312061A (en) * | 2014-06-24 | 2016-02-10 | 江苏瑞丰科技实业有限公司 | Normal-temperature ozone-removal catalytic material |
Also Published As
Publication number | Publication date |
---|---|
KR20120022794A (en) | 2012-03-12 |
CN102481567A (en) | 2012-05-30 |
JP2011230017A (en) | 2011-11-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5103386B2 (en) | Improved high selective oxidation catalyst containing platinum, copper and iron | |
KR20020047154A (en) | Catalyst for the selective oxidation of carbon monoxide and its preparation | |
JP2009273961A5 (en) | ||
US20220111334A1 (en) | Reactor for reducing nitrogen oxides | |
JP5607131B2 (en) | Exhaust gas purification catalyst | |
JPWO2014103597A1 (en) | Exhaust gas purification catalyst composition and exhaust gas purification catalyst | |
JP4296908B2 (en) | Catalyst body and method for producing the same | |
JP5612050B2 (en) | Method for producing metal particle supported catalyst | |
JP2010194384A (en) | Catalyst for purification of exhaust gas and method of producing the same | |
JP5363406B2 (en) | Base material for catalyst carrier of exhaust gas purification device for gasoline engine and method for producing catalyst carrier | |
WO2011132741A1 (en) | Production method for ozone gas reduction catalyst support and catalyst support | |
JPS62201648A (en) | Catalyst for decomposing ozone | |
JP2010214366A (en) | Carrier for toxic gas decomposition catalyst and method of producing the same | |
JP6508633B2 (en) | Catalyst for the oxidation of ammonia | |
JP5086964B2 (en) | Method for producing exhaust gas purifying catalyst | |
JP2006192365A (en) | Catalyst for cleaning exhaust gas from internal-combustion engine, method for manufacturing the catalyst, and exhaust gas-cleaning apparatus | |
CN113181765A (en) | Photocatalytic filter for degrading mixed gas and manufacturing method thereof | |
JP4626804B2 (en) | Exhaust gas purification catalyst | |
JP4626803B2 (en) | Exhaust gas purification catalyst | |
JP2003225568A (en) | Catalyst for purifying volatile organic compound and production method therefor | |
JP5512374B2 (en) | Method for producing catalyst carrier by plasma spraying and catalyst carrier | |
JP2007222863A (en) | Material, apparatus and member for removing carbon monoxide, and method of manufacturing member for removing carbon monoxide | |
RU2499766C1 (en) | Method for catalytic oxidation of ammonia | |
JP2015202440A (en) | Catalyst for voc decomposition removal, production method thereof, and voc decomposition removal method using the same | |
JP2014008456A (en) | Catalyst for cleaning exhaust gas and method for producing the catalyst |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201180003549.0 Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 20117024718 Country of ref document: KR Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11772073 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 11772073 Country of ref document: EP Kind code of ref document: A1 |