CN108993535A - A kind of catalyst and preparation method thereof that the bimetallic catalytic for surpassing heatproof burns - Google Patents
A kind of catalyst and preparation method thereof that the bimetallic catalytic for surpassing heatproof burns Download PDFInfo
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- CN108993535A CN108993535A CN201810951145.8A CN201810951145A CN108993535A CN 108993535 A CN108993535 A CN 108993535A CN 201810951145 A CN201810951145 A CN 201810951145A CN 108993535 A CN108993535 A CN 108993535A
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- nitrate
- alkali metal
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- 239000003054 catalyst Substances 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000000919 ceramic Substances 0.000 claims abstract description 15
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 13
- 229910000510 noble metal Inorganic materials 0.000 claims abstract description 12
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims abstract description 8
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims description 29
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 241000264877 Hippospongia communis Species 0.000 claims description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- -1 alkali metal salt Chemical class 0.000 claims description 6
- 229910052788 barium Inorganic materials 0.000 claims description 6
- 229910052790 beryllium Inorganic materials 0.000 claims description 6
- 229910052791 calcium Inorganic materials 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 229910052712 strontium Inorganic materials 0.000 claims description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052746 lanthanum Inorganic materials 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 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 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 229910021380 Manganese Chloride Inorganic materials 0.000 claims description 3
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 claims description 3
- 229910002651 NO3 Inorganic materials 0.000 claims description 3
- 229910052779 Neodymium Inorganic materials 0.000 claims description 3
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 claims description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 3
- 229910052772 Samarium Inorganic materials 0.000 claims description 3
- 229910052775 Thulium Inorganic materials 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims description 3
- 159000000013 aluminium salts Chemical class 0.000 claims description 3
- 229910000329 aluminium sulfate Inorganic materials 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000003837 high-temperature calcination Methods 0.000 claims description 3
- 239000012456 homogeneous solution Substances 0.000 claims description 3
- 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 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 239000011572 manganese Substances 0.000 claims description 3
- 229940099607 manganese chloride Drugs 0.000 claims description 3
- 235000002867 manganese chloride Nutrition 0.000 claims description 3
- 239000011565 manganese chloride Substances 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- CFYGEIAZMVFFDE-UHFFFAOYSA-N neodymium(3+);trinitrate Chemical compound [Nd+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O CFYGEIAZMVFFDE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 3
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims description 3
- 239000013618 particulate matter Substances 0.000 claims description 3
- YWECOPREQNXXBZ-UHFFFAOYSA-N praseodymium(3+);trinitrate Chemical compound [Pr+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O YWECOPREQNXXBZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000012266 salt solution Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- LLZBVBSJCNUKLL-UHFFFAOYSA-N thulium(3+);trinitrate Chemical compound [Tm+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O LLZBVBSJCNUKLL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052727 yttrium Inorganic materials 0.000 claims description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 2
- 239000012855 volatile organic compound Substances 0.000 abstract description 17
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 2
- 239000001569 carbon dioxide Substances 0.000 abstract description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 abstract description 2
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 229910000420 cerium oxide Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000007084 catalytic combustion reaction Methods 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 2
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 208000017701 Endocrine disease Diseases 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 150000001338 aliphatic hydrocarbons 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
- 150000001492 aromatic hydrocarbon derivatives Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 231100000749 chronicity Toxicity 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 208000030172 endocrine system disease Diseases 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8933—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/8946—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with alkali or alkaline earth metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/63—Platinum group metals with rare earths or actinides
-
- 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
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/656—Manganese, technetium or rhenium
- B01J23/6562—Manganese
-
- 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
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/396—Distribution of the active metal ingredient
- B01J35/398—Egg yolk like
-
- 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
- B01J37/0234—Impregnation and coating simultaneously
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
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- Environmental & Geological Engineering (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The catalyst and preparation method thereof that the bimetallic catalytic that the invention discloses a kind of for surpassing heatproof burns, catalyst of the invention is the catalyst modified by bimetallic and alkali metal oxide and aluminium oxide, preparation process is easy, it is easy to operate, due to the doping of alkali metal element, the high temperature resistance of ceramic honeycomb catalyst can be significantly improved, alkali metal oxide and aluminium oxide wrap noble metal, reduce the probability that noble metal is inactivated in high-temperature area.At a lower temperature, this ceramic honeycomb catalyst can be by VOCs burning conversion at carbon dioxide and water.
Description
Technical field
The present invention relates to catalyst preparation technical field, what specially a kind of bimetallic catalytic for surpassing heatproof burnt is urged
Agent and preparation method thereof.
Background technique
Volatile organic matter (VOCs) is the important source of serious pollution air at present, normally comprises aliphatic hydrocarbon, halogenated
Hydrocarbon, aromatic hydrocarbon and aromatic hydrocarbon derivative etc..Chronicity lives in the interior of VOCs pollution, easily causes slow poisoning, such as
The damage for leading to the internal organs such as liver and nervous system, causes endocrine disorder；And when VOCs excessive concentration, it is easy to produce dizziness
Etc. symptoms, or even be in peril of one's life.Currently, VOCs is mainly derived from constructional ornamental material, industrial waste gas, vehicle exhaust etc., with
The production activity of the mankind is of close concern to each other.Current main VOCs control method has: source and process control, the improvement of end, with
And the substitution of new technologies and materials.Since the development time of new technology is very long, presently the most effective method is to carry out VOCs tail
The processing of gas.
The mode of present end treatment VOCs is, for the high gas of VOCs content, using condensing recovery, adsorption recovery skill
Art, in addition other the relevant technologies reach discharge standard；For the medium gas of VOCs content, adsorption recovery technology can be used
Organic solvent is recycled, then so that its gas is reached discharge standard using modes such as catalysis burning and flame combustions, and burning
When can be with recovery waste heat；For the low gas of VOCs content, if what can be utilized again can be used adsorption recovery technology, if
It cannot utilize again, it is direct using technologies such as biotechnology, plasma techniques either ultraviolet light high-level oxidation technology
Removal.But in processing high concentration VOCs and processing when concentration VOCs, RTO and flame combustion technology therein can be consumed largely
Energy, uneconomical, efficiency is high；When handling low concentration VOCs, plasma technique can generate ozone, generate secondary pollution.Cause
This, catalytic combustion technology is present and the most considerable in development in the future technology.
In catalytic combustion technology, most crucial product is catalyst, and the quality of catalyst determines the quality of VOCs processing,
Catalyst consists of three parts, respectively carrier, auxiliary agent, active component, and in high-temperature catalytic environment, it is asked to solve high temperature resistant
Topic, improves the anti-caking power of catalyst, has some patents and document to carry out part and reports: application No. is
201010039192.9 patent with bimetallic oxide (La, Ce, Fe, K, Cu) be active component, with oxide (TiO2,
CeO2, ZrO2) it is carrier, catalyst is prepared by the way that complex reaction occurs, but its effect is unobvious.Application No. is
201611139648.2 patent is active component with Pd, Ga, using Al2O3 as carrier, the catalysis that is prepared by oleyl amine reduction method
Agent, since the bad control of process also limits its industrial use.Application No. is 200710120827.6 patents with Cu, K, Ce
For active component, using CeO2 as carrier, the resistance to temp effect of the catalyst prepared by oxidation and coprecipitation method is also unsatisfactory.Also have
Document report is better than the catalytic performance of infusion process using the catalyst of sol-gal process preparation.These above-mentioned reports all cannot be very
Good solves the problems, such as high temperature resistant.In addition to this, common high-temperature catalyst is mainly the cerium oxide of alkali metal modified, cerium oxide
Supported alumina, but the shortcomings that these catalyst have itself, for example cerium oxide is unstable, and other elements cooperation is needed to make
With.
The present invention is to be mainly characterized by high temperature resistant energy using the high temperature resistant bimetallic catalyst of reduction of ethylene glycol method preparation
The features such as power is strong, and the service life is long, and manufacture craft is simple, economic and environment-friendly, compared with other traditional catalyst structures, this catalyst
Design feature is active component selection bimetallic and increases alkali metal oxide and oxygen between carrier and active component
Change aluminium layer, the two interaction greatly increases its high temperature resistance.
Summary of the invention
The catalyst and its preparation side that the bimetallic catalytic that the purpose of the present invention is to provide a kind of for surpassing heatproof burns
Method, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme: a kind of bimetallic catalytic for surpassing heatproof burns
Catalyst, the active component of the catalyst is bimetallic, and carrier is between ceramic honey comb and carrier and active component
The coating of alkali metal oxide and aluminium oxide, the bimetallic are noble metal and another metal, and another metal salt derives from
In ferric trichloride, cobalt chloride, nickel chloride, manganese chloride, neodymium nitrate, yttrium nitrate, lanthanum nitrate, praseodymium nitrate, samaric nitrate and thulium nitrate
It is a kind of；
The metal oxide includes all rare alkaline metal elements such as Be, Mg, Ca, Sr, Ba, and the quality of Pt accounts for catalyst quality
0.003-0.3%.
Preferably, preparation method includes the following steps:
A, the mixed solution that alkali metal salt and aluminium salt are prepared according to molar ratio 3-8:1, is denoted as solution A, and alkali metal salt is alkali metal
One of middle Be, Mg, Ca, Sr, Ba are several；
B, 3-9 h after mixing evenly by the solution A in step A, is reacted, 1-8 h is stood, is filtered, is washed, drying obtains
Grain object B；
C, bimetallic solution is prepared: a kind of in bimetallic by load weighted noble metal and dissolving metal salts in ethylene glycol solution
Element is Pt, and another element is one of Fe, Co, Ni, Mn, Nd, Y, La, Pr, Sm and Tm；Your gold in the step B
Belong to and the ratio of another metal is 1:0.1-10；Ultrasonic agitation 1 hour until the homogeneous and transparent solution of formation, then uses hydrogen-oxygen
The PH for changing sodium adjustment solution is 13, and the solution after mixing up is placed in oil bath pan and is stirred 5 hours for 130 DEG C, is cooled to room temperature, then
It is 2 with the PH of hydrochloride adjusted solution, is stirred for 12 hours, it is spare；
D, 2-10h is mixed in the bimetal salt solution in particulate matter B in step B and step C, obtains homogeneous solution；
E, solution made from step D is coated on ceramic honey comb, by high-temperature calcination, finally obtains ceramic honeycomb catalyst.
Preferably, 350-700 DEG C of calcination temperature in the step E, time 2-8h.
Compared with prior art, the beneficial effects of the present invention are: catalyst of the invention is by bimetallic and alkali gold
Belonging to the catalyst of oxide and aluminium oxide modification, preparation process is easy, and it is easy to operate, due to the doping of alkali metal element, Neng Gouxian
The high temperature resistance for improving ceramic honeycomb catalyst is write, alkali metal oxide and aluminium oxide wrap noble metal, reduce noble metal
In the probability of high-temperature area inactivation.At a lower temperature, this ceramic honeycomb catalyst can be by VOCs burning conversion at dioxy
Change carbon and water.
Detailed description of the invention
Fig. 1 is catalyst structure schematic diagram of the present invention；
Fig. 2 is temperature profile of the catalyst of the present invention to ethyl acetate；
Fig. 3 is temperature profile of the high temperature resistant rear catalyst of the present invention to ethyl acetate conversion ratio.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-3, the present invention provides a kind of technical solution: a kind of bimetallic catalytic burning for surpassing heatproof is urged
Agent, the active component of the catalyst are bimetallics, and carrier is the alkali gold between ceramic honey comb and carrier and active component
Belong to the coating of oxide and aluminium oxide, the bimetallic is noble metal and another metal, and another metal salt derives from trichlorine
Change one of iron, cobalt chloride, nickel chloride, manganese chloride, neodymium nitrate, yttrium nitrate, lanthanum nitrate, praseodymium nitrate, samaric nitrate and thulium nitrate；
The metal oxide includes all rare alkaline metal elements such as Be, Mg, Ca, Sr, Ba, and the quality of Pt accounts for catalyst quality
0.003-0.3%.
Preparation method of the invention the following steps are included:
A, the mixed solution that alkali metal salt and aluminium salt are prepared according to molar ratio 3-8:1, is denoted as solution A, and alkali metal salt is alkali metal
One of middle Be, Mg, Ca, Sr, Ba are several；
B, 3-9 h after mixing evenly by the solution A in step A, is reacted, 1-8 h is stood, is filtered, is washed, drying obtains
Grain object B；
C, bimetallic solution is prepared: a kind of in bimetallic by load weighted noble metal and dissolving metal salts in ethylene glycol solution
Element is Pt, and another element is one of Fe, Co, Ni, Mn, Nd, Y, La, Pr, Sm and Tm；Your gold in the step B
Belong to and the ratio of another metal is 1:0.1-10；Ultrasonic agitation 1 hour until the homogeneous and transparent solution of formation, then uses hydrogen-oxygen
The PH for changing sodium adjustment solution is 13, and the solution after mixing up is placed in oil bath pan and is stirred 5 hours for 130 DEG C, is cooled to room temperature, then
It is 2 with the PH of hydrochloride adjusted solution, is stirred for 12 hours, it is spare；
D, 2-10h is mixed in the bimetal salt solution in particulate matter B in step B and step C, obtains homogeneous solution；
E, solution made from step D is coated on ceramic honey comb, by high-temperature calcination, 350-700 DEG C of calcination temperature, time 2-
8h；Finally obtain ceramic honeycomb catalyst.
Experimental example: before catalyst high temperature resistant of the invention, 260 DEG C of the inversion temperature of ethyl acetate 99%；After high temperature resistant, 900
DEG C sintering 100h, 270 DEG C of inversion temperature to ethyl acetate 99% of catalyst.
Catalyst of the invention is the catalyst modified by bimetallic and alkali metal oxide and aluminium oxide, is prepared
Journey is easy, easy to operate, due to the doping of alkali metal element, can significantly improve the high temperature resistance of ceramic honeycomb catalyst, alkali
Metal oxide and aluminium oxide wrap noble metal, reduce the probability that noble metal is inactivated in high-temperature area.At a lower temperature,
This ceramic honeycomb catalyst can be by VOCs burning conversion at carbon dioxide and water.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (3)
1. a kind of catalyst that the bimetallic catalytic for surpassing heatproof burns, it is characterised in that: the active component of the catalyst
It is bimetallic, carrier is the coating of the alkali metal oxide and aluminium oxide between ceramic honey comb and carrier and active component, institute
Stating bimetallic is noble metal and another metal, another metal salt from ferric trichloride, cobalt chloride, nickel chloride, manganese chloride,
One of neodymium nitrate, yttrium nitrate, lanthanum nitrate, praseodymium nitrate, samaric nitrate and thulium nitrate；
The metal oxide includes all rare alkaline metal elements such as Be, Mg, Ca, Sr, Ba, and the quality of Pt accounts for catalyst quality
0.003-0.3%.
2. realize the preparation method for the catalyst that a kind of bimetallic catalytic for surpassing heatproof described in claim 1 burns,
Be characterized in that: preparation method includes the following steps:
A, the mixed solution that alkali metal salt and aluminium salt are prepared according to molar ratio 3-8:1, is denoted as solution A, and alkali metal salt is alkali metal
One of middle Be, Mg, Ca, Sr, Ba are several；
B, 3-9 h after mixing evenly by the solution A in step A, is reacted, 1-8 h is stood, is filtered, is washed, drying obtains
Grain object B；
C, bimetallic solution is prepared: a kind of in bimetallic by load weighted noble metal and dissolving metal salts in ethylene glycol solution
Element is Pt, and another element is one of Fe, Co, Ni, Mn, Nd, Y, La, Pr, Sm and Tm；Your gold in the step B
Belong to and the ratio of another metal is 1:0.1-10；Ultrasonic agitation 1 hour until the homogeneous and transparent solution of formation, then uses hydrogen-oxygen
The PH for changing sodium adjustment solution is 13, and the solution after mixing up is placed in oil bath pan and is stirred 5 hours for 130 DEG C, is cooled to room temperature, then
It is 2 with the PH of hydrochloride adjusted solution, is stirred for 12 hours, it is spare；
D, 2-10h is mixed in the bimetal salt solution in particulate matter B in step B and step C, obtains homogeneous solution；
E, solution made from step D is coated on ceramic honey comb, by high-temperature calcination, finally obtains ceramic honeycomb catalyst.
3. the preparation method for the catalyst that a kind of bimetallic catalytic for surpassing heatproof according to claim 2 burns,
It is characterized in that: 350-700 DEG C of calcination temperature in the step E, time 2-8h.
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| CN1488435A (en) * | 2002-10-10 | 2004-04-14 | 中国石油化工股份有限公司 | Catalytic combustion catalyst and preparing method thereof |
| JP2007031248A (en) * | 2005-07-29 | 2007-02-08 | Oxy Japan:Kk | Substance including negatively charged oxygen atom, and method for producing the same |
| CN107913719A (en) * | 2017-12-06 | 2018-04-17 | 江苏安琪尔废气净化有限公司 | Catalyst and preparation method for the noble metal low-load amount of VOCs catalysis burnings |
| CN108097247A (en) * | 2017-11-22 | 2018-06-01 | 南通斐腾新材料科技有限公司 | A kind of preparation method of high temperature resistant platinum bimetallic catalyst |
| CN108097248A (en) * | 2017-11-22 | 2018-06-01 | 南通斐腾新材料科技有限公司 | A kind of catalyst and preparation method for more chlorination aromatic hydrocarbon low-temperature catalytic burnings |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1488435A (en) * | 2002-10-10 | 2004-04-14 | 中国石油化工股份有限公司 | Catalytic combustion catalyst and preparing method thereof |
| JP2007031248A (en) * | 2005-07-29 | 2007-02-08 | Oxy Japan:Kk | Substance including negatively charged oxygen atom, and method for producing the same |
| CN108097247A (en) * | 2017-11-22 | 2018-06-01 | 南通斐腾新材料科技有限公司 | A kind of preparation method of high temperature resistant platinum bimetallic catalyst |
| CN108097248A (en) * | 2017-11-22 | 2018-06-01 | 南通斐腾新材料科技有限公司 | A kind of catalyst and preparation method for more chlorination aromatic hydrocarbon low-temperature catalytic burnings |
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