CN203061190U - Metal soft carrier three-way catalyst with stable carrying layer - Google Patents
Metal soft carrier three-way catalyst with stable carrying layer Download PDFInfo
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- CN203061190U CN203061190U CN2012206972357U CN201220697235U CN203061190U CN 203061190 U CN203061190 U CN 203061190U CN 2012206972357 U CN2012206972357 U CN 2012206972357U CN 201220697235 U CN201220697235 U CN 201220697235U CN 203061190 U CN203061190 U CN 203061190U
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- carrying layer
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- 239000003054 catalyst Substances 0.000 title claims abstract description 79
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 40
- 239000002184 metal Substances 0.000 title claims abstract description 40
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 9
- 229910000990 Ni alloy Inorganic materials 0.000 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 description 8
- 235000012771 pancakes Nutrition 0.000 claims description 8
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 6
- 229910052763 palladium Inorganic materials 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 229910052703 rhodium Inorganic materials 0.000 claims description 5
- 239000010948 rhodium Substances 0.000 claims description 5
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 4
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims description 3
- CSSYLTMKCUORDA-UHFFFAOYSA-N barium(2+);oxygen(2-) Chemical compound [O-2].[Ba+2] CSSYLTMKCUORDA-UHFFFAOYSA-N 0.000 claims description 3
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 3
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 3
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000000746 purification Methods 0.000 abstract description 4
- 239000003546 flue gas Substances 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 20
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 229910002091 carbon monoxide Inorganic materials 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 6
- 239000004215 Carbon black (E152) Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000007598 dipping method Methods 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 229910000510 noble metal Inorganic materials 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 229910052684 Cerium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052746 lanthanum Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052779 Neodymium Inorganic materials 0.000 description 2
- 229910052777 Praseodymium Inorganic materials 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052878 cordierite Inorganic materials 0.000 description 2
- 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 2
- 239000003292 glue Substances 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 2
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910004625 Ce—Zr Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000006424 Flood reaction Methods 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000035568 catharsis Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000003426 co-catalyst Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- -1 hydrocarbon nitrogen oxides Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Images
Classifications
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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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Catalysts (AREA)
Abstract
A metal soft carrier three-way catalyst with a stable carrying layer belongs to the technical field of flue gas denitrification catalysts, and solves the problems that the existing vehicle purifier is poor in purification function and difficultly meets the emission requirements. The metal soft carrier three-way catalyst with the stable carrying layer comprises a metal soft carrier, wherein an aluminized layer is formed on the surface of the metal soft carrier; a catalyst carrying layer is coated on the aluminized layer; and a catalyst layer is coated on the catalyst carrying layer. The catalyst provided by the utility model is good in automobile tail gas purification effect, high in plasticity, convenient and flexible to use and wide in application range; and as the carrying layer is firm, the catalyst is better in durability and high in stability, and thereby still have good purification effect even though the catalyst is aged by water heating.
Description
Technical field
The utility model belongs to the catalyst for denitrating flue gas technical field, particularly a kind of catalyst for tail-gas from gasoline automobiles.
Background technology
The motor vehicle exhaust emission severe contamination human atmospheric environment of depending on for existence, and greatly threatening human body health.Along with the intensification of people to motor vehicle exhaust emission contamination hazard understanding, the stricter automobile exhaust emission standard scheme of the numerous and confused formulation in countries in the world.
For pusher motor-car pollution emission reduction, improve atmosphere quality, national environmental protection portion issue bulletin requires various places to gasoline car strictness enforcement immediately state IV standards.With respect to state III standard, state IV standards has had further raising for the emission request of gasoline car, carbon monoxide must not surpass 1.0 grams/kilometer (EUROIII Emission Standard is 2.3 grams/kilometer), hydrocarbon must not surpass 0.1 gram/kilometer (EUROIII Emission Standard is 0.2 gram/kilometer), nitrogen oxide must not surpass 0.08 gram/kilometer (EUROIII Emission Standard is 0.15 gram/kilometer), and the particle standard must not surpass 0.025 gram/kilometer.
Shown environment, requirement and the sense of duty more and more higher to quality of the life to carrying out state IV standards from state III standard upgrade, but the native country independent brand is in the face of the high-level discomfort of international joint.
To state IV, be not only reaching of car load production technology from state III, but the system engineering of comprehensive requirements such as fuel oil quality, condition of road surface, traffic administration, driving technology, driving habit, operational maintenance.On present technology, the key of automobile environment-protection is to control exhaust emissions well by correlation technique, reduces discharge of harmful gases.
CN1454701A Rarefied-burning automobile exhaust gas catalyzing and purifying method and device, this disclosure of the Invention a kind of Rarefied-burning automobile exhaust gas catalyzing and purifying method and device, relate to the purifying vehicle exhaust technology.This invention is at the exhaust pipe of engine two catalytic bed to be set, and the additional reducing agent nozzle is set between two reaction beds.First reaction bed utilizes tail gas institute hydrocarbon-containiproducts nitrogen oxides reduction, makes the contained hydrocarbon of tail gas and carbon monoxide be converted into carbon dioxide and water simultaneously; The oxygen-bearing hydrocarbon reducing agent nitrogen oxides reduction that the second reaction bed utilization adds simultaneously, makes additional reducing agent be converted into carbon dioxide and water.This invention is compared with the prior art scheme, can widen the active temperature scope, improve purification of nitrogen oxides efficient, assistance utilizes engine exhaust institute hydrocarbon-containiproducts and adds the effect of oxygen-bearing hydrocarbon nitrogen oxides reduction, reduce the consumption of additional reducing agent, and efficiently transform hydrocarbon and carbon monoxide is carbon dioxide and water.
CN1872409A cleaning catalyst for tail gases of automobiles and preparation method thereof, this invention relates to a kind of cleaning catalyst for tail gases of automobiles and preparation method thereof.This catalyst comprises carrier and the washcoat layer that is coated on the carrier, weight in washcoat layer is 100%, comprise following component: (1) 67～95% composite alumina carrier that weighs, described composite alumina carrier is by aluminium oxide and be selected from lanthanum, cerium, praseodymium, neodymium, zirconium, magnesium, chromium, manganese, iron, cobalt, the oxide of one or more auxiliary agents in the nickel is formed: the active component of (2) 5～33 heavy %, and described active component is by being selected from cobalt, molybdenum, nickel, tungsten, zirconium, titanium, lanthanum, cerium, praseodymium, one or more non-noble metal oxides in the neodymium be selected from platinum, palladium, one or more metal oxide containing precious metals of rhodium are formed.The catalyst that this invention provides has good catalyzed conversion performance, can reduce in the tail gas sulfide to the influence of catalyst poisoning, thus the tail gas clean-up efficient that the higher gasoline combustion of sulfur content is discharged.
One kind of CN1899690A removes the catalyst of nitrogen oxide and carbon monoxide in the vehicle exhaust simultaneously, this invention relates to the triple effect noble metal catalyst that a kind of efficient, cheap non-precious metal catalyst replaces being applied at present purifying vehicle exhaust, specially refers to a kind of catalyst that removes nitrogen oxide and carbon monoxide in the vehicle exhaust simultaneously.It is characterized in that Ag is the Your Majesty.Wherein, Co is co-catalyst, is carried on support C eO jointly
2Adopting urea is the Preparation by Uniform Precipitation of precipitating reagent; Dipping method is adopted in the introducing of active component A g and Co, floods Co behind the dipping Ag earlier, and the best loading of Ag and Co is 4wt% and 0.4wt%.The effect of this invention and benefit are that the catalyst that provides has reduced cleaning catalyst for tail gases of automobiles, metering oxygen cost.This catalyst is 120000h in air speed
-1Under the condition that exists, interior 200～500 ℃ of lower temperature window, catalysis is eliminated when realizing NO and CO.
CN1772382A metal carrier for automobile tail gas purifier catalyst and preparation method thereof, this invention relates to a kind of for metal carrier for automobile tail gas purifier catalyst and preparation method thereof, solves existing metallic carrier complex forming technology and production cost technical problems of high.Metal carrier for automobile tail gas purifier catalyst is characterized in that tridimensional network, and skeleton is that metallic nickel or core adopt metallic copper substantially, and skin comprises that the skeleton of metallic nickel is matrix, and porosity is 30～98%, and hole count is 20～60PPI, and the aperture is 0.5～3mm.The preparation method may further comprise the steps: the conductionization processing is done on a. polyurethane or polyether foam surface, and the conductionization processing can be adopted electroless plating method or vaccum gas phase sedimentation method, applies the carbon back electrically-conducting paint: b. electro-deposition parent metal, nickel commonly used or copper clad nickel; C. in pyrolysis oven, the foamed plastics matrix is burnt, removes.Main carrier as automobile tail gas purifier catalyst.
CN1600418A cleaning catalyst for tail gases of automobiles and preparation method thereof, this disclosure of the Invention a kind of cleaning catalyst for tail gases of automobiles and preparation method thereof.Namely being carrier with the cordierite ceramic, is coated substrate with aluminium glue and modenite, is auxiliary agent with one or more oxides or composite oxides in La-Ce-Zr solid solution or La, Ce, the elements such as Zr, Mn, is main active with Pt, Pd, Rh.The manufacture method of this catalyst is: in aluminium glue powder, modenite powder, the auxiliary agent one or more are mixed into mixed powder and distilled water makes the mixed coating material, cordierite honeycomb ceramic is impregnated in the mixed coating material of preparing, dipping, dry, roasting, the disposable coated carrier that makes coating load factor 10～30%, again the coated carrier that makes is immersed in the noble metal precursor solution of PH=2～7, dipping, drying, roasting, makes cleaning catalyst for tail gases of automobiles of the present invention.The catalyst of this invention has good low temperature and plays characteristic alive and very high catalytic conversion efficiency, can effectively reduce the cold start emission of automobile.
The utility model relates to the soft carrier three-way catalyst of the firm metal of a kind of catalyst carrying layer, it is poor mainly to solve in the existing soft carried catalyst of metal of vehicle between the soft carrier of metal and catalyst carrying layer cohesive force, carrying layer is insecure, the problem that comes off easily in the soft vector form deforming process of metal.The utility model adopts fluffy fe-cr-ni alloy wire, be wound in the same spiral metal carrier of little spring, then the soft metal carrier being carried out alitizing handles, improve the technical scheme of soft carrier top layer aluminium content, solved this problem preferably, the catalyst of preparation have the catalyst carrying layer firmly, to the characteristics of the soft carrier strong adhesion of metal, can be used in the industrial production of the soft carried catalyst of metal.
Comprehensive relatively, powder method has obtained comparatively successful application because investment is little, instant effect, applicability are wide in ferrous materials.
The utility model content
Technical problem to be solved in the utility model is that the existing clarifier of vehicle that exists in the prior art still plays catharsis, but can't satisfy the rules emission request fully, and all replacing had both been wasted resource, the problem that raises the cost again.A kind of new firm soft carrier three-way catalyst of metal of carrying layer is provided, has strong, the easy to use characteristics such as flexible, applied widely of clean-up effect, plasticity that improve.
For solving the problems of the technologies described above, the utility model provides the firm metal of a kind of carrying layer soft carrier three-way catalyst, and its technical scheme is as follows:
The soft carrier three-way catalyst of the metal that carrying layer is firm:
Comprise the soft carrier of metal, the surface of the soft carrier of metal has aluminized coating, is coated with the catalyst carrying layer on the aluminized coating, is coated with catalyst layer on the catalyst carrying layer.
As preferred version of the present utility model:
Described catalyst carrying layer is alumina layer, cerium oxide layer, zirconia layer, magnesium oxide layer, barium monoxide layer, nickel oxide layer or manganese oxide layer;
Described catalyst layer is palladium catalyst layer, platinum catalyst layers or rhodium catalyst layer.
As preferred version of the present utility model:
The soft carrier of described metal is spiral fe-cr-ni alloy wire, the rounded or pancake of its cross section.
As preferred version of the present utility model:
Described fe-cr-ni alloy wire is wound in the cross section and is circular or pancake three-dimensional shape.
The utility model adopts fluffy fe-cr-ni alloy wire, is wound in the same spiral metal carrier of little spring, adopts alitizing to handle the soft carrier of metal, applies firm catalyst carrying layer, the technical scheme of carried noble metal at this carrier surface then.The soft carried catalyst of metal is filled in the air vent of automobile engine pipeline, not only have strong, the easy to use characteristics such as flexible, applied widely of purifying vehicle exhaust effect, plasticity that improve, and because carrying layer is firm, durability of catalyst is better, stability is stronger, still obtained clean-up effect preferably behind the hydrothermal aging, can be used in the discharging improvement of existing vehicle.
Be further elaborated below by the utility model of embodiment, these schemes only are the scopes that further specifies rather than limit claims.
Description of drawings
Fig. 1 is the schematic diagram of the soft carrier three-way catalyst of the firm metal of spiral carrying layer;
Fig. 2 is that A-A when cross section is rounded among Fig. 1 is to cutaway view;
A-A when Fig. 3 is pancake for cross section among Fig. 1 is to cutaway view;
Fig. 4 is wound in the cross section to be the schematic diagram of the firm soft carrier three-way catalyst of metal of circular carrying layer;
Fig. 5 is wound in the schematic diagram that the cross section is the soft carrier three-way catalyst of the firm metal of pancake carrying layer.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that embodiment only is used for explanation the utility model and is not used in the scope of the present utility model that limits.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
The soft carrier three-way catalyst of the metal that carrying layer as shown in Figure 1 is firm, monnolithic case is shape in the shape of a spiral, and its cross section is circle as shown in Figure 2, perhaps pancake as shown in Figure 3:
Comprise the soft carrier 1 of metal, the surface of the soft carrier of metal has aluminized coating 2, is coated with catalyst carrying layer 3 on the aluminized coating 2, is coated with catalyst layer 4 on the catalyst carrying layer 3.
Described catalyst carrying layer 3 is alumina layer, cerium oxide layer, zirconia layer, magnesium oxide layer, barium monoxide layer, nickel oxide layer or manganese oxide layer;
Described catalyst layer 4 is palladium catalyst layer, platinum catalyst layers or rhodium catalyst layer.
As shown in Figure 4, described fe-cr-ni alloy wire can be wound in the three-dimensional shape that the cross section is circle;
As shown in Figure 5, also can be wound in the cross section be pancake three-dimensional shape to described fe-cr-ni alloy wire.
Claims (4)
1. the soft carrier three-way catalyst of the metal that carrying layer is firm is characterized in that:
Comprise the soft carrier of metal (1), the surface of the soft carrier of metal has aluminized coating (2), is coated with catalyst carrying layer (3) on the aluminized coating (2), is coated with catalyst layer (4) on the catalyst carrying layer (3).
2. the soft carrier three-way catalyst of the metal that carrying layer according to claim 1 is firm is characterized in that:
Described catalyst carrying layer (3) is alumina layer, cerium oxide layer, zirconia layer, magnesium oxide layer, barium monoxide layer, nickel oxide layer or manganese oxide layer;
Described catalyst layer (4) is palladium catalyst layer, platinum catalyst layers or rhodium catalyst layer.
3. the soft carrier three-way catalyst of the metal that carrying layer according to claim 1 and 2 is firm is characterized in that:
The soft carrier of described metal (1) is spiral fe-cr-ni alloy wire, the rounded or pancake of its cross section.
4. the soft carrier three-way catalyst of the metal that carrying layer according to claim 3 is firm is characterized in that:
Described fe-cr-ni alloy wire is wound in the cross section and is circular or pancake three-dimensional shape.
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| CN2012206972357U CN203061190U (en) | 2012-12-14 | 2012-12-14 | Metal soft carrier three-way catalyst with stable carrying layer |
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| CN2012206972357U CN203061190U (en) | 2012-12-14 | 2012-12-14 | Metal soft carrier three-way catalyst with stable carrying layer |
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