CN102481567A - 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
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- CN102481567A CN102481567A CN2011800035490A CN201180003549A CN102481567A CN 102481567 A CN102481567 A CN 102481567A CN 2011800035490 A CN2011800035490 A CN 2011800035490A CN 201180003549 A CN201180003549 A CN 201180003549A CN 102481567 A CN102481567 A CN 102481567A
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- ozone gas
- catalyst support
- catalyst
- base material
- gas reduction
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- 239000003054 catalyst Substances 0.000 title claims abstract description 58
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 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 43
- 230000003197 catalytic effect Effects 0.000 claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 50
- 241000894007 species Species 0.000 claims description 17
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 238000005245 sintering Methods 0.000 claims description 11
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [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
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 3
- -1 platinum group metal oxide Chemical class 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 4
- 239000002994 raw material Substances 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 239000000919 ceramic Substances 0.000 abstract 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 239000000376 reactant Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 31
- 238000006722 reduction reaction Methods 0.000 description 21
- 239000000243 solution Substances 0.000 description 7
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 6
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001879 gelation Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 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
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010959 steel 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
- 208000004350 Strabismus Diseases 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 239000004411 aluminium 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
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000012298 atmosphere 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
- 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
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910001960 metal nitrate Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 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
- 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
- 238000007493 shaping process Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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- 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
- 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
- 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
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- 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
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- 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
Conventional ceramic substrates break easily with impact and are even more susceptible to breakage if the openings are made larger. Substrates made of thin stainless steel plate cannot be manufactured at low cost, small flow paths are difficult to form thereon, and flow paths are linear because of the honeycomb structure, which means that the flow paths need to be lengthened to increase the chance of contact between a catalyst substance and a reactant, which makes reducing the size of the structure difficult. To solve these issues, disclosed is an ozone gas reduction catalyst support which uses a porous body wherein a raw material of one sheet of metal mesh or a raw material of a plurality of laminated metal meshes have been sintered, as a substrate for the catalyst support and which forms an alumina thin layer, which supports a platinum group metal or a platinum group metal oxide catalytic substance dispersed thereon, on the surface of this substrate.
Description
Technical field
The present invention relates to be used to reduce the catalyst carrier and the manufacturing approach thereof of ozone gas.
Background technology
Up to now; The oxidation catalyst or the reducing catalyst that particularly relate to the purified treatment of automobile exhaust gas are made as shown in the following patent documentation 1～4 mostly: promptly; General rule does; The catalyst of the honeycomb that is shaped by stainless sheet steel with the catalyst of the honeycomb of base material or the pottery calcined with base material in aluminium oxide as carrier, to its supported catalyst material, make the gas that comprises reactive material carry out oxidation or reduction through the linearity stream that forms in this structure.Wherein, the reduction of ozone gas is that the gas that comprises ozone gas is carried out through the catalyst tube of the manganese dioxide of filled with granular mostly.
The prior art document
Patent documentation
Patent documentation 1: japanese kokai publication sho 62-237947 communique
Patent documentation 2: TOHKEMY 2007-223856 communique
Patent documentation 3: TOHKEMY 2005-254217 communique
Patent documentation 4: Japan special table 2006-41170 communique
Patent documentation 1 discloses following content: after the metallic surface alligatoring, have the active particulate of catalyst cupport, the ultramicronized catalytic specie of load in this surface bonding.In addition, use spongiform metal.
Patent documentation 2,4 discloses following content: use the silica-alumina based compound that is added with 2.5～10 quality % silica in the gross mass basis, make the gelation thing by the metal alkoxide of aluminium and silicon through gelation reaction.With this gelation thing freeze drying, obtain the porous structure body.
Patent documentation 3,4 discloses following content: the mixed conducting oxide that in the nitrate of palladium, platinum and/or rhodium or the muriatic aqueous solution or organic solvent solution, disperses oxygen ion conduction and electrical conductivity; After the evaporation of this solvent removed, obtain the catalyst for removal of nitrogen oxide material carrying out heat treated more than 600 ℃.
Yet; In patent documentation 1～4; Though relate to the raising of the contact area of catalyst carries out oxidation or reduction reaction with contacting with catalyst material (below be called reactive material); Perhaps relate to and prevent catalytic specie combination each other, or micronize, evenly decentralized etc., but do not do any consideration with the improvement of base material for catalyst carrier.
Promptly; In patent documentation 1～4, though the contact area that can hold reactive material and catalyst roughly to a certain degree, still; Because the stream that forms in the honeycomb structured body is a linearity; Therefore improve reaction efficiency in order to improve catalytic specie with the possibility that contacts of reactive material, need to prolong stream, be difficult to this structure miniaturization.
In addition, in patent documentation 1～4, reactive material is present in the fluid as stated, and makes this fluid pass through to opposite side from a side, still, as far as pottery system honeycomb structured body, exists and lacks rigidity basically, is highly brittle and not impact-resistant problem.In addition, as far as stainless sheet steel system honeycomb structured body, exist to be difficult to stream with the extremely to a certain degree above problem that mode is shaped, cost also uprises of miniaturization.
Summary of the invention
The problem that invention will solve
The problem that the present invention will solve is; Replace honeycomb; Make excellent rigidity and further improved the base material that catalytic specie and the catalyst carrier that contacts possibility of reactive material are used; And since as the particulate manganese dioxide of catalytic specie have frangible, easily absorb moisture, exceedingly absorb the character that moisture then liquefies, the durability existing problems are so adopt the catalytic specie that replaces it.
The scheme that is used to deal with problems
The present invention makes the base material of the catalyst carrier of excellent rigidity and economy excellence; And the catalytic specie manganese dioxide that adopt to replace in the reduction of ozone gas, using usually now, that durability and efficiency are excellent also provides the structure of the catalyst carrier of the aforementioned catalytic specie of load; The porous body that the porous body that will be formed by the material sintering that 1 woven wire forms forms as the base material of catalyst carrier or with the range upon range of material sintering that many woven wires are arranged is as the base material of catalyst carrier; Surface at this base material forms the aluminium oxide thin layer that spread loads has platinum group metal or its oxide or their mixture, obtains the reduction catalysts agent carrier.
The effect of invention
There is following advantage in the present invention: through using the base material of porous body, thereby can guarantee as the surface area of the aluminium oxide thin layer of carrier bigger; Can be according to the amount of the reactive material that contains in the gas and freely select opening diameter to a certain extent; Can adjust whole thickness neatly through the number of woven wire.
In addition; Through using the woven wire of sintering, thereby utilize diffusion to combine to obtain tabular porous body, can cutting and the free degree height of bending machining and shaping; Through changing the catalyst loadings of each base material respectively, can also realize the saving of expensive catalytic specie.
Therefore, through in the reduction of ozone gas is handled, adopting the present invention, as the synergy of above advantage, the treatment effeciency of ozone gas improves, and economy is excellent.
Description of drawings
(a) of Fig. 1 and (b) be the figure that expression is used to confirm the experimental result of effect of the present invention.
The specific embodiment
In the manufacturing approach of ozone gas reduction catalysts agent carrier of the present invention; The porous body that the porous body that will be formed by the material sintering that 1 woven wire forms forms as the base material of catalyst carrier or with the range upon range of material sintering that many woven wires are arranged is as the base material of catalyst carrier; And at the surface of this base material formation aluminium oxide thin layer; Wherein said aluminium oxide thin layer spread loads has platinum group metal, its oxide or their mixture, thereby obtains ozone gas reduction catalysts agent carrier.As catalytic specie, can select platinum group metal, its oxide or their mixture, if the monomer of catalytic specie palladium metal or its oxide or be their mixture then can obtain suitable more ozone gas reduction catalysts agent carrier.
And, about the embodiment of ozone gas reduction catalysts agent carrier of the present invention, for example use a plurality of catalyst carriers as required, make in them respectively through containing the gas of ozone gas, thereby reduce ozone gas effectively.
Make ozone gas reduction catalysts agent carrier through following mode: about aluminium oxide thin layer in the formation of the surface of this base material; Through solution coat that the powder that in alumina sol solution, has added as the nitrate of the platinum group metal of catalytic specie is obtained to surface coarsening in advance this base material on, or in this solution this base material of dipping catalytic specie is adhered to; Then, this base material is calcined under 600 ℃～700 ℃ temperature and formed.Perhaps; Make ozone gas reduction catalysts agent carrier through following mode: do not add in advance on the surface of this base material the platinum group metal nitrate powder and after forming the aluminium oxide thin layer equally; It is impregnated in the nitrate solution of platinum group metal; Then, this base material and aforementioned is likewise calcined under 600 ℃～700 ℃.
The ozone gas reduction catalysts agent carrier of making among the present invention use that is described below.For example; A plurality of catalyst carriers are set in container as required; This catalyst carrier is with porous body that the range upon range of material sintering that many woven wires are arranged the is formed base material as catalyst carrier; Forming spread loads on the surface of this base material has the aluminium oxide thin layer of platinum group metal as catalytic specie, makes in this container through containing the gas of ozone gas, thereby harmful ozone gas is reduced into harmless oxygen.
Adopt the reason of the woven wire of sintering to be that the free degree of perforate is high among the present invention.For example, the perforate of the woven wire that can obtain easily on the market exists more than from 0.005mm to 1cm galore, and perforate, rigidity, porosity are different separately, through with they combined sinterings, can become the also excellent material of rigidity.
In addition, have the following advantages through sintered metal mesh: the wire rod of each wire rod and adjacency fuses securely, can not squint in the position of wire rod, that is, even stress application also can be guaranteed stable perforate state.
It is desirable to, be used for the woven wire of the base material of catalyst carrier, for example with stainless steel material as main material.Its reason is, corrosion resistance excellent and have marketability and obtain easily.Certainly, also can be copper or the woven wire of copper alloy system or nickel system etc. except that stainless steel, but other metal that is mixed be preferably and have considered corrosion proof material.
Further it is desirable to, in the present invention, about the processing that catalyst carrier is set and gas is passed through, for example with respond (m
3/ hour) divided by filtering material amount (for example 1 liter etc.) and the SV value (l/h) that obtains is the condition of 1000～100000l/h carries out.Its reason is that during less than 1000l/h, it is excessive that catalyst can become, and can't use its ability fully, during greater than 100000l/h, can exceed catalytic capability, and the possibility that can't reduce fully is high.
In addition, it is desirable to, about the processing that catalyst carrier is set, gas is passed through, for example with respond (m
3/ hour) divided by area (m
2) and the LV value (cm/sec) that obtains is the condition of 10～200cm/sec carries out.Its reason is that during less than 10cm/sec, catalyst is not brought into play function fully, with respect to the inefficient of catalytic capability, during greater than 200cm/sec, exceeds catalytic capability, is difficult to full dose and handles.
Below, to the effect brought for the method for reduction treatment of confirming ozone gas of the present invention and the experiment of carrying out describe.
Embodiment 1
(manufacturing)
With each 1 of 16,20,60 and 30 purpose of SUS316 system, amount to 4 woven wire range upon range of; In vacuum heat treatment furnace in vacuum and add to depress and make woven wire sintering each other with about 1200～1300 ℃; Obtain thickness and be 1.8mm, smallest aperture diameter and be the base material that 0.25mm (250 μ m), porosity are about the catalyst carrier of 60% porous body, it is configured as the discoideus of diameter 50mm.
Then, palladium nitrate is added in the alumina sol solution, the base material that the above-mentioned catalyst cupport of dipping is used in this solution then, is dried, and under air atmosphere, calcines with about 650 ℃ temperature.Consequently, made and obtained the aluminium oxide thin layer on the surface of this base material and spread loads has palladium, palladium oxide or their mixture as catalytic specie in this aluminium oxide thin layer catalyst carrier.The supposition thickness of this aluminium oxide thin layer is that 0.005mm, palladium catalytic specie particle diameter are that about 10～20nm, catalyst loadings rise catalyst for about 1.7g/.
(enforcement)
For the catalyst carrier of making as stated of the present invention, make the ozone gas that produces by ozone generator with original state through in the said catalyst carrier, mensuration percent reduction in concentration of ozone gas is the scope of 5～60000ppm (w).With its measure the result be shown in (a) of Fig. 1 and (b) in.
In addition, the mensuration of percent reduction is carried out separately as follows: in Fig. 1 (a), change SV value (l/h) and measure percent reduction, in Fig. 1 (b), change LV value (cm/sec) and measure percent reduction.
Result by Fig. 1 (a) shows, through being that the SV value is set at below the 100000l/h with the inverse of time of contact of catalyst, and can be with 90% above reduction decomposition of ozone gas.In addition, show by the result of Fig. 1 (b), through the LV value is set at 10～200cm/sec, can be with 90% above reduction decomposition of ozone gas.
Claims (3)
1. the manufacturing approach of an ozone gas reduction catalysts agent carrier; It is characterized in that; The porous body that the porous body that will be formed by the material sintering that 1 woven wire forms forms as the base material of catalyst carrier or with the range upon range of material sintering that many woven wires are arranged is as the base material of catalyst carrier; And, wherein, platinum group metal or its oxide or their mixture are arranged in said aluminium oxide thin layer spread loads at the surface of this base material formation aluminium oxide thin layer.
2. the manufacturing approach of ozone gas reduction catalysts agent carrier according to claim 1 is characterized in that, catalytic specie is the monomer of palladium metal or its oxide or is their mixture.
3. catalyst carrier, it is to make through each the said manufacturing approach in claim 1 or 2.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-100190 | 2010-04-23 | ||
| JP2010100190A JP2011230017A (en) | 2010-04-23 | 2010-04-23 | Production method for ozone gas reduction catalyst support and catalyst support |
| PCT/JP2011/059841 WO2011132741A1 (en) | 2010-04-23 | 2011-04-21 | Production method for ozone gas reduction catalyst support and catalyst support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102481567A true CN102481567A (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800035490A Pending CN102481567A (en) | 2010-04-23 | 2011-04-21 | Production method for ozone gas reduction catalyst support and catalyst support |
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|---|---|
| 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 |
|---|---|---|---|---|
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312061B (en) * | 2014-06-24 | 2017-12-29 | 江苏瑞丰科技实业有限公司 | Normal temperature removes ozone catalysing material |
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| JPH02307509A (en) * | 1989-05-19 | 1990-12-20 | Sakai Chem Ind Co Ltd | Ozone decomposer |
| CN1054014A (en) * | 1990-08-22 | 1991-08-28 | 黄振钧 | Ozone removal and separating catalyst and their preparation method and application |
| 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 |
| JP2006218351A (en) * | 2005-02-08 | 2006-08-24 | Seiko Epson Corp | Ozonolysis method, ozonolysis apparatus and treatment apparatus |
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| JPH03157143A (en) * | 1989-11-16 | 1991-07-05 | Nippon Shokubai Kagaku Kogyo Co Ltd | Catalyst for purification of exhaust gas from motorcycle |
| JP3604740B2 (en) * | 1994-06-29 | 2004-12-22 | エヌ・イーケムキャット株式会社 | Ozone decomposition catalyst and ozone decomposition method |
| JP3480867B2 (en) * | 1995-05-22 | 2003-12-22 | 松下電器産業株式会社 | Catalyst body and method for producing the same |
| 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 |
| JP2007252640A (en) * | 2006-03-23 | 2007-10-04 | Orion Mach Co Ltd | Adsorbing purifying apparatus |
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2010
- 2010-04-23 JP JP2010100190A patent/JP2011230017A/en not_active Withdrawn
-
2011
- 2011-04-21 KR KR1020117024718A patent/KR20120022794A/en not_active Application Discontinuation
- 2011-04-21 CN CN2011800035490A patent/CN102481567A/en active Pending
- 2011-04-21 WO PCT/JP2011/059841 patent/WO2011132741A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02307509A (en) * | 1989-05-19 | 1990-12-20 | Sakai Chem Ind Co Ltd | Ozone decomposer |
| CN1054014A (en) * | 1990-08-22 | 1991-08-28 | 黄振钧 | Ozone removal and separating catalyst and their preparation method and application |
| 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 |
| JP2006218351A (en) * | 2005-02-08 | 2006-08-24 | Seiko Epson Corp | Ozonolysis method, ozonolysis apparatus and treatment apparatus |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011132741A1 (en) | 2011-10-27 |
| KR20120022794A (en) | 2012-03-12 |
| JP2011230017A (en) | 2011-11-17 |
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