CN102240560B - Composite catalyst used for catalytic combustion of organic waste gas as well as preparation method and application thereof - Google Patents
Composite catalyst used for catalytic combustion of organic waste gas as well as preparation method and application thereof Download PDFInfo
- Publication number
- CN102240560B CN102240560B CN 201110109279 CN201110109279A CN102240560B CN 102240560 B CN102240560 B CN 102240560B CN 201110109279 CN201110109279 CN 201110109279 CN 201110109279 A CN201110109279 A CN 201110109279A CN 102240560 B CN102240560 B CN 102240560B
- Authority
- CN
- China
- Prior art keywords
- honeycomb ceramic
- cordierite honeycomb
- catalyst
- transition zone
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000007084 catalytic combustion reaction Methods 0.000 title abstract description 10
- 239000007789 gas Substances 0.000 title abstract description 9
- 239000010815 organic waste Substances 0.000 title abstract description 7
- 239000002131 composite material Substances 0.000 title abstract description 5
- 229910052878 cordierite Inorganic materials 0.000 claims abstract description 49
- 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 claims abstract description 49
- 239000000919 ceramic Substances 0.000 claims abstract description 36
- 230000007704 transition Effects 0.000 claims abstract description 29
- 229910052802 copper Inorganic materials 0.000 claims abstract description 16
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 16
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 16
- 229910018879 Pt—Pd Inorganic materials 0.000 claims abstract description 12
- 229910052742 iron Inorganic materials 0.000 claims abstract description 12
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 8
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 7
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 7
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 7
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 6
- 239000010970 precious metal Substances 0.000 claims abstract description 6
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 5
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 15
- 239000010953 base metal Substances 0.000 claims description 15
- 229910000510 noble metal Inorganic materials 0.000 claims description 15
- 229910002651 NO3 Inorganic materials 0.000 claims description 14
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 14
- BKIMMITUMNQMOS-UHFFFAOYSA-N nonane Chemical compound CCCCCCCCC BKIMMITUMNQMOS-UHFFFAOYSA-N 0.000 claims description 10
- 239000005416 organic matter Substances 0.000 claims description 9
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 8
- 229910001593 boehmite Inorganic materials 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 claims description 8
- 229910017604 nitric acid Inorganic materials 0.000 claims description 8
- 229920006395 saturated elastomer Polymers 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 239000012752 auxiliary agent Substances 0.000 claims description 7
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 claims description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 230000032683 aging Effects 0.000 claims description 6
- 229910021529 ammonia Inorganic materials 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 claims description 6
- 239000011020 iolite Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims description 4
- 230000007062 hydrolysis Effects 0.000 claims description 4
- 238000006460 hydrolysis reaction Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000001802 infusion Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 4
- 231100000572 poisoning Toxicity 0.000 abstract description 4
- 230000000607 poisoning effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 239000005864 Sulphur Substances 0.000 abstract 1
- 238000010306 acid treatment Methods 0.000 abstract 1
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000007654 immersion Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 21
- 238000005470 impregnation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000011259 mixed solution Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000977 initiatory effect Effects 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- OERNJTNJEZOPIA-UHFFFAOYSA-N zirconium nitrate Chemical compound [Zr+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O OERNJTNJEZOPIA-UHFFFAOYSA-N 0.000 description 2
- NGDQQLAVJWUYSF-UHFFFAOYSA-N 4-methyl-2-phenyl-1,3-thiazole-5-sulfonyl chloride Chemical compound S1C(S(Cl)(=O)=O)=C(C)N=C1C1=CC=CC=C1 NGDQQLAVJWUYSF-UHFFFAOYSA-N 0.000 description 1
- 238000006424 Flood reaction Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- FYDKNKUEBJQCCN-UHFFFAOYSA-N lanthanum(3+);trinitrate Chemical compound [La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FYDKNKUEBJQCCN-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Landscapes
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention discloses a composite catalyst used for catalytic combustion of organic waste gas as well as a preparation method and an application thereof, belonging to the technical field of catalysts. The composite catalyst is a Pt-Pd/Cu-Mn-Zn-Fe/transition layer/cordierite catalyst, macroporous high-sticky composite pseudo boehmite is taken as a second carrier, namely transition rubber, any two of La, Y, Ce and Zr are selected as assistants, non-precious metals such as Cu, Mn, Zn and Fe and precious metals Pd and Pt are taken as active components, wherein the second carrier and the assistants form the transition layer. The preparation method comprises the following steps of: carrying out acid treatment on the cordierite honeycomb ceramic surface and loading the transition layer, then loading the non-precious metal elements Cu, Mn, Zn and Fe by adopting an immersion method, and then sequentially loading the precious metals Pd and Pt by adopting a precipitation-thermal adsorption coupling method. By adopting the invention, sulphur poisoning of the catalyst can be prevented, the life of the catalyst can be prolonged, and the production cost of the catalyst can be reduced.
Description
Technical field
The present invention relates to a kind of compound organic waste gas catalytic combustion catalyst, relate in particular to that a kind of activity is high, sulfur poisoning-resistant, cost is low, the life-span the is long iolite honeycomb ceramic catalyst that is used for organic waste gas catalytic combustion, belong to catalyst technical field.
Background technology
Organic exhaust gas (VOCs) has generation in all types of industries production process, how to utilize few resource of trying one's best effectively to process waste gas and the generation that reduces pollutant becomes focus deeply concerned.Catalytic combustion technology has reduced the discharging of pollutant, has that initiation temperature is low, energy consumption is low and the advantage such as flameholding, so catalyst for catalytic combustion is in the common concern that is subject to people aspect the recycling of VOCs treatment, the energy and the generating.
The preparation process of existing organic waste gas catalytic combustion catalyst generally adopts aluminium oxide as tie coat, and the fastness that exists coating to be combined with cordierite carrier is poor, specific area is low, be difficult for the shortcomings such as adsorption activity component.General hot absorption method or the infusion process of adopting of the load of active component, low because adsorbing insufficient noble metal utilization rate that makes, the dipping rule easily makes active component at the catalyst surface skewness, thereby causes catalytic activity to descend.Only the catalyst cost take noble metal as active component is higher, and anti-poisoning capability is relatively poor.Only the catalyst initiation temperature take base metal as active component is high, and the life-span is short.
Summary of the invention
The purpose of this invention is to provide a kind of high activity, efficient catalytic combustion catalyst, preparation method and the application of Heat stability is good.The present invention glues compound boehmite as transition material take macropore and height, Ce, Zr, La, Y are cocatalytic element, and Cu, Mn, Zn, Fe base metal and Pt-Pd double base noble metal are that active component is made high activity, sulfur poisoning-resistant, noble metal catalyst cheaply.
Cordierite honeycomb ceramic noble metal catalyst for organic waste gas catalytic combustion of the present invention is Pt-Pd/Cu-Mn-Zn-Fe/ transition zone/cordierite catalyst, using cordierite honeycomb ceramic is the first carrier, macropore and high sticking compound boehmite are Second support (transition glue), optional two kinds is auxiliary agent among La, Y, Ce, the Zr, base metal Cu, Mn, Zn, Fe and precious metals pd, Pt are active component, wherein, Second support and auxiliary agent form transition zone; The mass ratio of Cu, Mn, Zn, Fe is 3: 1: 1: 1; Second support content is that 5-15wt%, the auxiliary agent content of cordierite is the 0.5-2.5% of Second support quality, the total content of base metal active component Cu, Mn, Zn, Fe is 2～5wt% of cordierite carrier, and the total content of Pd and Pt is 0.05%～0.5% of cordierite carrier quality.
The concrete preparation method of catalyst of the present invention comprises the steps:
(1) the cordierite honeycomb ceramic surface acid is processed;
With cordierite honeycomb ceramic, put into salpeter solution, carry out acid etching preliminary treatment 1～4h, remove surface impurity, after the washing in air dry oven 100～120 ℃, dry 2～6h.
(2) the transition zone load of carrier cordierite honeycomb ceramic;
(a) macropore and high sticking boehmite are mixed to get mixture A, choose the nitrate of cocatalytic element La, Y, Ce, Zr wantonly two kinds and be mixed to get mixture B, A, B are mixed with deionized water, be made into tie coat, allocating pH with nitric acid after fully stirring is 1～3, and the tie coat liquid after the hydrolysis continues to stir 2～4h;
(b) (1) gained carrier is immersed in the tie coat liquid, flood saturated rear taking-up, with compressed air solution unnecessary in the duct is blown away, then be put in the baking oven 100～120 ℃, dry 2～4h;
(c) repeating step (b) ceramic monolith of can repeatedly being filmed is until load capacity reaches 5～15wt%;
(d) catalyst carrier after will flooding is in 400～550 ℃ of roasting 2～6h;
(3) the cordierite honeycomb ceramic infusion process load base metal element of filming:
Mass ratio according to Cu, Mn, Zn, Fe is 3: 1: 1: 1, and with the nitrate dissolving of four kinds of base metal elements, the PH of regulator solution is 2～3, with (2) gained carrier impregnation in this solution, flood saturated rear taking-up, 100～120 ℃ of oven dry 2～6h, 400～550 ℃ of roasting 2～6h;
(4) the adsorbing coupled method carried noble metal of the cordierite honeycomb ceramic precipitation-Re Pd that films:
Nitrate solution (the H of preparation Pd
2PdCl
66H
2O), use 1molL
-1Ammonia spirit dropwise add in the above-mentioned mixed solution, behind ageing 2～4h, (3) gained is loaded with non-noble metal carrier impregnation in this solution, ebuillition of heated 2～4h, with hydrazine hydrate reductase 12 h, dry 2～6h, 400～550 ℃ of roasting 2～6h for 100～120 ℃ after the cooling;
(5) the adsorbing coupled method carried noble metal of the cordierite honeycomb ceramic precipitation-Re Pt that films:
Nitrate solution (the H of preparation Pt
2PtCl
66H
2O), use 1molL
-1Ammonia spirit dropwise add in the above-mentioned mixed solution, behind ageing 2～4h, with (4) gained support type carrier impregnation in this solution, ebuillition of heated 2～4h, use hydrazine hydrate reductase 12 h after the cooling, 100～120 ℃ of oven dry 2～6h, 400～550 ℃ of roasting 2～6h obtain Pt-Pd/Cu-Mn-Zn-Fe/ transition zone/cordierite catalyst.
Above-mentioned cordierite honeycomb ceramic 200 or 400cell/in
2, preferred 200cell/in
2
Above-mentioned steps 1) mass concentration of salpeter solution preferred 1%.The concentration of step 2 nitric acid is 1molL
-1
Above-mentioned integral catalyzer Pt-Pd/Cu-Mn-Zn-Fe/ transition zone/cordierite catalyst is used for the catalyst combustion reaction of volatile organic matter: adopt fixed bed reactors, with air and volatile organic matter reaction, atmospheric operation, operating temperature are 100～380 ℃, and the operation air speed is 20000h
-1～40000h
-1The preferred 4-6g/L of the concentration of volatile organic matter.
The present invention has following advantage:
1. active component adopts Pd-Pt double base noble metal and Cu, Mn, Zn, many kinds of base metal elements of Fe, the noble metal active component can reduce the initiation temperature of organic exhaust gas, multiple base metal element both can prevent the sulfur poisoning of catalyst, again can the extending catalyst life-span, reduce the Catalyst Production cost;
2. tie coat adopts macropore and high sticking compound boehmite, has both made coating be easy to load, improves its fastness, can improve coated surface area again, guarantees the abundant absorption to active component;
3. the adsorbing coupled method of precipitation-Re is taked in the load of catalyst activity component, that the active component precipitation is adsorbed on the tie coat, form multi-level catalyst, can guarantee that so the abundant absorption of noble metal active component can guarantee that again it is in the even distribution of catalyst surface.
Description of drawings
The surface sweeping Electronic Speculum of Fig. 1 embodiment 1Pt-Pd/Cu-Mn-Zn-Fe/ transition zone/cordierite catalyst
The surface sweeping Electronic Speculum of Fig. 2 embodiment 2Pt-Pd/Cu-Mn-Zn-Fe/ transition zone/cordierite catalyst
The reactivity figure of 2 pairs of toluene of Fig. 3 embodiment 1 and embodiment and nonane
The specific embodiment
Embodiment 1
With cordierite honeycomb ceramic (200cell/in
2), put into 1% dilute nitric acid solution, carry out acid etching preliminary treatment 1h, after the washing in air dry oven 120 ℃, dry 2h.Macropore and high sticking boehmite are mixed (gross mass 30 grams) with mass ratio at 1: 3, add the mixture (mol ratio is 3: 1) of 3g cerous nitrate and zirconium nitrate, be dissolved in the 90ml deionized water, use 1molL after fully stirring
-1Rare nitric acid allotment pH is 2, and the tie coat liquid after the hydrolysis continues to stir 2h.Pretreated cordierite carrier is immersed in the tie coat, flood saturated rear taking-up, with compressed air solution unnecessary in the duct is blown away, then be put in 120 ℃ of dry 2h in the baking oven, 400 ℃ of roasting 4h obtain the cordierite complex carrier.Pressed Cu, Mn, Zn, Fe mass ratio 3: 1: 1: 1, with the nitrate dissolving of four kinds of base metal elements, the pH of regulator solution is 2, and complex carrier is immersed in this solution, floods saturated rear taking-up, 120 ℃ of oven dry 2h, 450 ℃ of roasting 4h.Pd nitrate solution (the H of preparation 0.002g/ml
2PdCl
66H
2O), use 1molL
-1Ammonia spirit dropwise add in the above-mentioned mixed solution, after ageing a period of time, in carrier impregnation solution, ebuillition of heated 2h, after the cooling with hydrazine hydrate reductase 12 h, 120 ℃ of oven dry 2h, 450 ℃ of roasting 6h are with the step supporting Pt identical with Pd.Make transition glue content and be 12%, Ce, Zr content be for being the 1.5wt% of Second support, Cu, Mn, Zn, four kinds of base metal elements of Fe total content are the 5wt% of cordierite carrier, and Pd, Pt total content are Pt-Pd/Cu-Mn-Zn-Fe/ transition zone/cordierite catalyst of the 0.07wt% of cordierite carrier quality.Get this catalyst and place reaction tube, getting toluene is volatile organic matter and air reaction, and air speed is 20000h
-1, toluene concentration is 6mg/L, utilizes temperature programming equipment control temperature to rise to 250 ℃ from 150 speed with 2 ℃/min, each stage conversion temperature of toluene is T
10=150 ℃, T
50=190 ℃, T
99=240 ℃, specifically see Fig. 3.
Embodiment 2
With cordierite honeycomb ceramic (200cell/in
2), put into 1% dilute nitric acid solution, carry out acid etching preliminary treatment 1h, after the washing in air dry oven 120 ℃, dry 2h.Macropore and high sticking boehmite are mixed (gross mass 30 grams) with mass ratio at 1: 1, add the mixture (mol ratio is 3: 1) of 3g lanthanum nitrate and yttrium nitrate, be dissolved in the 90ml deionized water, use 1molL after fully stirring
-1Rare nitric acid allotment pH is 2, and the gel after the hydrolysis continues to stir 2h.The cordierite carrier processed is immersed in the tie coat, flood saturated rear taking-up, with compressed air solution unnecessary in the duct is blown away, then be put in the baking oven 120 ℃, dry 2h, 400 ℃ of roasting 4h obtain the cordierite complex carrier.The nitrate of Cu, Mn, Zn, four kinds of base metal elements of Fe was pressed 3: 1: 1: 1 mass ratio dissolving, the PH of regulator solution is 2, and complex carrier is immersed in this solution, flood saturated rear taking-up, 120 ℃ of oven dry 2h, 450 ℃ of roasting 4h, and repeated impregnations and baking step.Pd nitrate solution (the H of preparation 0.002g/ml
2PdCl
66H
2O), use 1molL
-1Ammonia spirit dropwise add in the above-mentioned mixed solution, after ageing a period of time, in carrier impregnation solution, ebuillition of heated 2h, after the cooling with hydrazine hydrate reductase 12 h, 120 ℃ of oven dry 2h, 450 ℃ of roasting 6h are with the step supporting Pt identical with Pd.Make transition glue content and be 10%, La, Y content be the 1.5wt% of transition glue, Cu, Mn, Zn, four kinds of base metal elements of Fe total content are the 5wt% of cordierite carrier, and Pd, Pt total content are Pt-Pd/Cu-Mn-Zn-Fe/ transition zone/cordierite catalyst of the 0.07wt% of cordierite carrier quality.Get this catalyst and place reaction tube, getting nonane is volatile organic matter and air reaction, and air speed is 20000h
-1, nonane concentration is 5mg/L, utilizes temperature programming equipment control temperature to rise to 250 ℃ from 150 speed with 2 ℃/min, each stage conversion temperature of nonane is T
10=160 ℃, T
50=230 ℃, T
90=310 ℃, specifically see Fig. 3.
Claims (6)
1.Pt-Pd/Cu-Mn-Zn-Fe/ the preparation method of transition zone/iolite honeycomb ceramic catalyst, described Pt-Pd/Cu-Mn-Zn-Fe/ transition zone/iolite honeycomb ceramic catalyst, using cordierite honeycomb ceramic is the first carrier, macropore and high sticking compound boehmite are that Second support is transition glue, optional two kinds is auxiliary agent among La, Y, Ce, the Zr, base metal Cu, Mn, Zn, Fe and precious metals pd, Pt are active component, and wherein, Second support and auxiliary agent form transition zone;
It is characterized in that, may further comprise the steps:
(1) the cordierite honeycomb ceramic surface acid is processed
With cordierite honeycomb ceramic, put into salpeter solution, carry out acid etching preliminary treatment 1～4h, remove surface impurity, after the washing in air dry oven 100～120 ℃, dry 2～6h;
(2) the transition zone load of cordierite honeycomb ceramic
(a) macropore and high sticking boehmite are mixed to get mixture A, choose the nitrate of auxiliary agent La, Y, Ce, Zr wantonly two kinds and be mixed to get mixture B, A, B are mixed with deionized water, be made into transition zone liquid, allocating pH with nitric acid after fully stirring is 1～3, and the transition zone liquid after the hydrolysis continues to stir 2～4h;
(b) (1) gained cordierite honeycomb ceramic is immersed in the transition zone liquid, flood saturated rear taking-up, with compressed air solution unnecessary in the duct is blown away, then be put in the baking oven 100～120 ℃, dry 2～4h;
(c) repeating step (b) cordierite honeycomb ceramic of can repeatedly being filmed is until load capacity reaches 5～15wt%;
(d) cordierite honeycomb ceramic after will flooding is in 400～550 ℃ of roasting 2～6h;
(3) the cordierite honeycomb ceramic infusion process load base metal element of filming
Mass ratio according to Cu, Mn, Zn, Fe is 3:1:1:1, with four kinds of non-noble metal nitrate dissolvings, the pH of regulator solution is 2～3, (2) gained cordierite honeycomb ceramic is immersed in this solution, flood saturated rear taking-up, 100～120 ℃ of oven dry 2～6h, 400～550 ℃ of roasting 2～6h;
(4) the adsorbing coupled method carried noble metal of the cordierite honeycomb ceramic precipitation-Re Pd that films
The nitrate solution of preparation Pd is used 1molL
-1Ammonia spirit dropwise add in the nitrate solution of above-mentioned Pd, behind ageing 2～4h, (3) gained is loaded with non-noble metal cordierite honeycomb ceramic to be immersed in this solution, ebuillition of heated 2～4h, use hydrazine hydrate reductase 12 h after the cooling, 100～120 ℃ of oven dry 2～6h, 400～550 ℃ of roasting 2～6h;
(5) the adsorbing coupled method carried noble metal of the cordierite honeycomb ceramic precipitation-Re Pt that films
The nitrate solution of preparation Pt is used 1molL
-1Ammonia spirit dropwise add in the nitrate solution of above-mentioned Pt, behind ageing 2～4h, (4) gained support type cordierite honeycomb ceramic is immersed in this solution, ebuillition of heated 2～4h, use hydrazine hydrate reductase 12 h after the cooling, 100～120 ℃ of oven dry 2～6h, 400～550 ℃ of roasting 2～6h obtain Pt-Pd/Cu-Mn-Zn-Fe/ transition zone/iolite honeycomb ceramic catalyst.
2. according to the method for claim 1, it is characterized in that, the cordierite honeycomb ceramic hole count is 200 or 400cell/in
2
3. according to the method for claim 1, it is characterized in that, the mass concentration 1% of step (1) salpeter solution, the concentration of step (2) nitric acid is 1molL
-1
4. according to the method for claim 1, it is characterized in that, the mass ratio of Cu, Mn, Zn, Fe is 3:1:1:1; Second support content is that 5-15wt%, the auxiliary agent content of cordierite honeycomb ceramic is the 0.5-2.5% of Second support quality, the total content of base metal active component Cu, Mn, Zn, Fe is 2～5wt% of cordierite honeycomb ceramic, and the total content of Pd and Pt is 0.05%～0.5% of cordierite honeycomb ceramic quality.
5. according to the prepared Pt-Pd/Cu-Mn-Zn-Fe/ transition zone/iolite honeycomb ceramic catalyst of the method for claim 1.
6. be applied to the catalyst combustion reaction of volatile organic matter according to the prepared Pt-Pd/Cu-Mn-Zn-Fe/ transition zone/iolite honeycomb ceramic catalyst of the method for claim 1, it is characterized in that, adopt fixed bed reactors, with air and volatile organic matter reaction, atmospheric operation, operating temperature is 100～380 ℃, and the operation air speed is 20000h
-1～40000h
-1, the concentration 4-6g/L of volatile organic matter, described volatile organic matter are toluene or nonane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110109279 CN102240560B (en) | 2011-04-28 | 2011-04-28 | Composite catalyst used for catalytic combustion of organic waste gas as well as preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110109279 CN102240560B (en) | 2011-04-28 | 2011-04-28 | Composite catalyst used for catalytic combustion of organic waste gas as well as preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102240560A CN102240560A (en) | 2011-11-16 |
| CN102240560B true CN102240560B (en) | 2013-05-01 |
Family
ID=44958916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110109279 Expired - Fee Related CN102240560B (en) | 2011-04-28 | 2011-04-28 | Composite catalyst used for catalytic combustion of organic waste gas as well as preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102240560B (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191733B (en) * | 2012-01-09 | 2015-06-17 | 中国科学院大连化学物理研究所 | Low-concentration methane combustion catalyst and its preparation method |
| CN107970921A (en) * | 2016-10-21 | 2018-05-01 | 中国石油化工股份有限公司 | A kind of catalyst with catalysis organic exhaust gas combustion function and its preparation method and application and the method for catalysis organic exhaust gas burning |
| CN107308954A (en) * | 2017-06-22 | 2017-11-03 | 浙江工业大学 | A kind of monoblock type combustion catalyst with dynamics model |
| CN108479386B (en) * | 2018-05-31 | 2023-12-19 | 深圳市中金岭南科技有限公司 | Device and method for selectively heating and catalyzing waste gas |
| CN109261147B (en) * | 2018-10-24 | 2021-05-28 | 无锡威孚环保催化剂有限公司 | Pt-Pd single-coating catalyst for treating benzene substances and preparation method thereof |
| CN109513445B (en) * | 2018-11-08 | 2022-05-13 | 中国科学院工程热物理研究所 | Ternary metal oxide thin film catalyst and preparation method thereof |
| CN111659414A (en) * | 2019-03-05 | 2020-09-15 | 绍兴胜迹新材料科技有限公司 | Preparation method of nano composite noble metal catalyst using active carbon as carrier |
| CN111659415A (en) * | 2019-03-05 | 2020-09-15 | 绍兴胜迹新材料科技有限公司 | Preparation method of coupled nano composite noble metal catalyst of active alumina carrier |
| CN110433823B (en) * | 2019-07-30 | 2022-09-20 | 万华化学集团股份有限公司 | Catalyst for synthesizing diaminomethylcyclohexane, and preparation method and application thereof |
| CN110743545A (en) * | 2019-09-29 | 2020-02-04 | 浙江工业大学 | Ethylene oxide double-active-site combustion catalyst and preparation and application thereof |
| CN113209996B (en) * | 2020-01-21 | 2023-05-16 | 中国石油化工股份有限公司 | Catalyst for microwave enhanced catalytic oxidation treatment of VOCs, and preparation method and application thereof |
| CN112246250B (en) * | 2020-10-12 | 2022-05-06 | 中国石油大学(北京) | Integral catalytic combustion catalyst and preparation method and application thereof |
| CN112675846A (en) * | 2020-12-22 | 2021-04-20 | 安徽稞馨环境科技有限公司 | Preparation method and application of noble metal monolithic catalyst for removing carbon monoxide at room temperature by catalytic oxidation method |
| CN113000051A (en) * | 2021-02-26 | 2021-06-22 | 上海大学材料基因组工程(萍乡)研究院 | Method for generating high-temperature-resistant catalyst on surface of cordierite carrier |
| CN113198449A (en) * | 2021-05-11 | 2021-08-03 | 四川宝英胜达环保材料有限公司 | Novel composite efficient VOCs comprehensive waste gas treatment catalyst and preparation method thereof |
| CN114260017A (en) * | 2021-12-27 | 2022-04-01 | 山东亮剑环保新材料有限公司 | Composite metal catalyst for catalytic combustion of VOCs and preparation method thereof |
| CN114713221B (en) * | 2022-04-25 | 2023-12-08 | 南京工业大学 | Preparation method of efficient sulfur poisoning resistant catalyst for VOCs treatment |
| CN116139880A (en) * | 2023-02-24 | 2023-05-23 | 广东工业大学 | Sulfur poisoning resistant catalyst for catalytic combustion and preparation method and application thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100457238C (en) * | 1998-02-22 | 2009-02-04 | 无锡威孚力达催化净化器有限责任公司 | Catalyst for purifying IC engine tail gas and/or industrial waste gas |
| CN1986035B (en) * | 2005-12-22 | 2010-11-24 | 中国石油化工股份有限公司 | Automobile exhaust gas purifying process |
-
2011
- 2011-04-28 CN CN 201110109279 patent/CN102240560B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102240560A (en) | 2011-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102240560B (en) | Composite catalyst used for catalytic combustion of organic waste gas as well as preparation method and application thereof | |
| CN103433057B (en) | Three-way catalyst for purifying automobile exhaust and preparation method thereof | |
| CN102489322B (en) | Catalyst for purifying tail gas of diesel automobiles, preparation method and purification device thereof | |
| CN102000570A (en) | Pd/Ce0.8Zr0.2O2/cordierite honeycomb ceramic monolithic catalyst, preparation method and application thereof | |
| CN111408365A (en) | Preparation method of monolithic manganese-based catalyst for low-temperature denitration | |
| CN103657632B (en) | A kind of base extraction monoblock type chromium oxide catalyst and preparation method and application | |
| CN105126866A (en) | Preparation method of monolithic CO normal-temperature catalyst | |
| CN104084199B (en) | For the integral catalyzer and preparation method thereof of methane catalytic combustion | |
| CN1239258C (en) | Catalyst for purifying exhausted gas of car and preparation process thereof | |
| CN102728377B (en) | A kind of RE perovskite type catalyst and preparation method thereof | |
| CN101116822A (en) | Non-uniform combustion catalyst and method for preparing the same | |
| CN101116821A (en) | Non-uniform combustion catalyst and uses thereof | |
| CN109225315A (en) | Molecular screen base integral catalyzer and preparation method for propane waste gas catalytic combustion | |
| CN110721683B (en) | Catalyst for liquid nitrogen tail gas washing oxidation under oxygen critical condition and preparation method and application thereof | |
| CN101607199B (en) | CO selective methanation monolithic catalyst and preparation method thereof | |
| CN101607198B (en) | CO selective methanation catalyst and preparation method thereof | |
| CN104759281A (en) | Preparation method of composite oxide catalyst used for purifying diesel engine | |
| CN102407136A (en) | Vehicle exhaust catalyst containing cordierite honeycomb ceramic and preparation method thereof | |
| CN100430131C (en) | Catalytic combustion catalyst | |
| CN102389796A (en) | Auto exhaust catalyst containing auxiliary TiO2 and carrier cordierite and preparation method thereof | |
| KR20230158823A (en) | Method for preparing an oxidation catalyst module using electrodeposition and the catalyst thereby | |
| CN102389813A (en) | Auto exhaust efficient purification catalyst containing auxiliary CuO and preparation method thereof | |
| CN102371164A (en) | Automotive catalyst containing Ce-Zr-Fe-Mn composite oxide and TiO2 auxiliaries and preparation method thereof | |
| CN102407144A (en) | Automobile exhaust catalyst containing Fe-Al-Cr alloy carrier and CuO assistant and preparation method thereof | |
| CN102935366A (en) | Anti-sintering palladium metal catalyst for coating organic waste gas treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 |