CN110358565A - A kind of emulsified asphalt for exhaust gas of degrading - Google Patents
A kind of emulsified asphalt for exhaust gas of degrading Download PDFInfo
- Publication number
- CN110358565A CN110358565A CN201910708440.5A CN201910708440A CN110358565A CN 110358565 A CN110358565 A CN 110358565A CN 201910708440 A CN201910708440 A CN 201910708440A CN 110358565 A CN110358565 A CN 110358565A
- Authority
- CN
- China
- Prior art keywords
- exhaust gas
- emulsified asphalt
- catalyst
- titanium dioxide
- spansule
- 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.)
- Granted
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 48
- 230000000593 degrading effect Effects 0.000 title claims description 8
- 239000003054 catalyst Substances 0.000 claims abstract description 80
- 239000007800 oxidant agent Substances 0.000 claims abstract description 20
- 230000001590 oxidative effect Effects 0.000 claims abstract description 19
- 230000015556 catabolic process Effects 0.000 claims abstract description 18
- 238000006731 degradation reaction Methods 0.000 claims abstract description 18
- 239000000654 additive Substances 0.000 claims abstract description 14
- 230000000996 additive effect Effects 0.000 claims abstract description 14
- 230000003647 oxidation Effects 0.000 claims abstract description 9
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 9
- 239000002775 capsule Substances 0.000 claims abstract description 4
- 238000013268 sustained release Methods 0.000 claims abstract description 4
- 239000012730 sustained-release form Substances 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 60
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 57
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 28
- 239000004408 titanium dioxide Substances 0.000 claims description 28
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 18
- 239000000243 solution Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 239000006185 dispersion Substances 0.000 claims description 13
- 238000001354 calcination Methods 0.000 claims description 10
- 230000003197 catalytic effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 238000006555 catalytic reaction Methods 0.000 claims description 7
- 230000015271 coagulation Effects 0.000 claims description 7
- 238000005345 coagulation Methods 0.000 claims description 7
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- 239000002808 molecular sieve Substances 0.000 claims description 6
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical group CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 5
- 238000007598 dipping method Methods 0.000 claims description 5
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 claims description 5
- 229940071125 manganese acetate Drugs 0.000 claims description 5
- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 claims description 5
- 239000000661 sodium alginate Substances 0.000 claims description 5
- 235000010413 sodium alginate Nutrition 0.000 claims description 5
- 229940005550 sodium alginate Drugs 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical group Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 4
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 4
- 239000002243 precursor Substances 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 238000005470 impregnation Methods 0.000 claims description 2
- 229940099596 manganese sulfate Drugs 0.000 claims description 2
- 239000011702 manganese sulphate Substances 0.000 claims description 2
- 235000007079 manganese sulphate Nutrition 0.000 claims description 2
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 claims description 2
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims description 2
- UBXWAYGQRZFPGU-UHFFFAOYSA-N manganese(2+) oxygen(2-) titanium(4+) Chemical compound [O--].[O--].[Ti+4].[Mn++] UBXWAYGQRZFPGU-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 15
- 230000002459 sustained effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 10
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 238000007146 photocatalysis Methods 0.000 description 9
- 230000001699 photocatalysis Effects 0.000 description 9
- 229960002163 hydrogen peroxide Drugs 0.000 description 8
- 239000005357 flat glass Substances 0.000 description 7
- 238000007711 solidification Methods 0.000 description 6
- 230000008023 solidification Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 230000000505 pernicious effect Effects 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- DQMUQFUTDWISTM-UHFFFAOYSA-N O.[O-2].[Fe+2].[Fe+2].[O-2] Chemical compound O.[O-2].[Fe+2].[Fe+2].[O-2] DQMUQFUTDWISTM-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000003426 co-catalyst Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/007—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by irradiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/32—Manganese, technetium or rhenium
- B01J23/34—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
- B01J35/39—Photocatalytic properties
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Toxicology (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
A kind of emulsified asphalt for the exhaust gas that can degrade of the present application, obtains additive mixed liquor for modified catalyst and sustained release capsules disperse Yu Shuizhong；Additive mixed liquor is added in basic emulsified asphalt, is uniformly mixed, the emulsified asphalt of degradation exhaust gas is obtained；It is by catalyst of addition specific components and can be sustained the spansule of oxidant, and the effect of two kinds of exhaust gas of vehicle exhaust and pitch volatilization gas can be purified by realizing a kind of catalyst.The catalyst also can realize the effect of exhaust gas collaboration removal while pitch body is mutually used as oxidation catalyst, reduces catalyst cost in asphalt surface as photochemical catalyst.
Description
Technical field
This application involves a kind of emulsified asphalts of exhaust gas of degrading more particularly to one kind can reduce vehicle exhaust and pitch certainly
The emulsified asphalt of body volatilization gas.
Background technique
With national economy high speed development, vehicle exhaust that the automobile volume of holding in China is continuously increased, and thus discharges
It is increasingly severe, cause air pollution to become the public social concern focused.For this purpose, the technology of numerous purification vehicle exhausts is met the tendency of
And it gives birth to.Wherein, photochemical catalyst is added in ground surface material to receive significant attention to remove vehicle exhaust, such as Chinese patent
CN1482178A, CN1970639A, CN103252225A, CN103102700A etc. are numerous, and research all discloses in asphalt material
Titanium dioxide is added so that it contacts with vehicle exhaust and purifies the pernicious gas.But it is above-mentioned all to there is following skill in the prior art
Art problem: (1) titanium dioxide is photochemical catalyst, and most of titanium dioxide is all in the body phase of pitch after mixing with pitch, only
Part titanium dioxide is exposed to surface, cause titanium dioxide utilization and it is insufficient；(2) although titanium dioxide is photocatalysis
Material, but for ordinary titanium dioxide, it usually needs ultraviolet light could excite it to carry out photocatalysis, cause in visible light
The catalytic efficiency of lower titanium dioxide is lower；(3) focus largely studied is that the tail gas of automobile removes, however bituminous pavement
Also itself escaping gas can be generated in the case where such as summer etc. is special, be had ignored while paying close attention to purifying vehicle exhaust
The exhaust gas that ground surface material generates, leads to that improvement cannot be cooperateed with.
For above-mentioned technical problem, although can be by making it act on pitch in liquid of the road surface spraying containing titanium dioxide
Surface is to improve the utilization rate of photochemical catalyst, by being modified to titanium dioxide so that it realizes photocatalysis under visible light,
But aforesaid way all can not preferably cope with the gas that pitch volatilizes.Therefore, how vehicle exhaust is more effectively purified simultaneously
With pitch volatilization gas need deeper into research.
Summary of the invention
The application proposes a kind of emulsified asphalt of exhaust gas of degrading, and can carry out photocatalysis using the catalyst of asphalt surface
It degrades to vehicle exhaust, while ira situ degradation is carried out to the exhaust gas generated in asphalt material in the catalyst in body phase, it is real
Show while making full use of of catalyst, purified vehicle exhaust and pitch exhaust gas, reduced cost, realizes degradation exhaust gas
Effect.Specific technical solution is as follows:
A kind of emulsified asphalt for exhaust gas of degrading, is made by the steps:
Modified catalyst and sustained release capsules disperse Yu Shuizhong are obtained into additive mixed liquor；
Additive mixed liquor is added in basic emulsified asphalt, is uniformly mixed, the emulsified asphalt of degradation exhaust gas is obtained；
Wherein, modified catalyst is using porous material as carrier, using the titanium dioxide of modifying agent doping as active component, with two
Manganese oxide is auxiliary agent；The modified catalyst can carry out light-catalyzed reaction under visible light, and be able to carry out catalytic oxidation；
Contain oxidant in spansule.
Preferably, it degrades in the emulsified asphalt of exhaust gas, the mass content of modified catalyst is 0.1-10%, spansule
Mass content is 1-10%, and additive mixed liquor and basic emulsified asphalt mass ratio are 15-35:85-65.
Preferably, carrier impregnation is added in containing TiO 2 precursor, the dispersion liquid of modifying agent presoma and stirring
Continue to stir after alkaline matter, obtains the first catalyst through filtering, drying, calcining, the first catalyst is impregnated in containing dioxy
It in the dispersion liquid for changing manganese presoma, is filtered after dipping, is dry, calcining obtains modified catalyst.
Preferably, in modified catalyst, carrier is selected from active carbon or molecular sieve, preferred molecular sieve；TiO 2 precursor
Selected from titanium tetrachloride or butyl titanate；The presoma of modifying titanium dioxide is selected from iron chloride or tin tetrachloride, manganese dioxide
Presoma is selected from manganese sulfate or manganese acetate.
Preferably, in modified catalyst, the mass content of carrier is 70-95%, and modifying titanium dioxide content is 5-25%,
Manganese dioxide content is 3-10%.
Preferably, in modifying titanium dioxide, the mass ratio of modifying agent and titanium dioxide is 5-20:100.
Preferably, the wall material of spansule, which is dissolved in the solution of oxidant, obtains mixed liquor, which is passed through needle
Head instills in coagulation bath, obtains the solution spansule containing oxidant.
Preferably, the wall material of spansule is sodium alginate, and oxidizing agent solution is aqueous hydrogen peroxide solution, and coagulation bath is chlorine
Change calcium solution.
Preferably, the mass concentration for aoxidizing aqueous solution of hydrogen is 5%-20%.
Preferably, the quality solid content of basic emulsified asphalt is 60-70%.
The utility model has the advantages that
(1) modified catalyst of the application can be generated under visible light conditions using modifying titanium dioxide as active component
Photocatalysis enables and removes vehicle exhaust in the modified catalyst of asphalt surface.Meanwhile modifying titanium dioxide also can
As the active component of common oxidation catalyst, so that the modified catalyst in pitch body phase is discharged in spansule and is aoxidized
Oxidation can be played when agent, the escaping gas generated in pitch is decomposed in pitch body phase, residual volatile
Again by photocatalyst for degrading when gas diffusion to asphalt surface.Therefore, the application can carry out modified catalyst abundant
It utilizes, no matter it is distributed in body phase or surface, can play its catalytic action, and by vehicle exhaust and pitch volatilization gas
It is removed simultaneously, not only saves catalyst cost, and handled two kinds of exhaust gas using same catalyst collaboration, reach
The effect of more sufficiently cleaned up exhaust gas.
(2) the application will be added in emulsified asphalt using spansule technology after oxidant, and when temperature is lower, pitch is waved
Body of getting angry is slower, and oxidant is lower from the speed in spansule, and when temperature is higher, pitch volatilization gas is very fast, oxidant
Higher from the speed in spansule, therefore, the speed that spansule discharges oxidant is positively correlated with pitch evaporation rate substantially,
It being capable of decomposition volatilization gas more efficiently.Moreover, the modified catalyst and oxidant may become volatilization gas for potential
Organic matter its become gas before decomposed.Spansule enables the release last longer of oxidant, in cream
It can realize that exhaust gas decomposition acts on for a period of time when changing bitumen solidification and after solidification, realize long-acting to pitch volatilization exhaust gas
Carry out the effect of ira situ degradation.
(3) the application uses manganese dioxide for catalyst promoter, and when modified catalyst is photochemical catalyst, manganese dioxide can
Can have an impact to the energy level of titanium dioxide, to realize the auxiliary to photocatalysis；It is catalysis oxygen in modified catalyst
When changing catalyst, manganese dioxide has decomposition to hydrogen peroxide, so that hydrogen peroxide is decomposed into oxygen, hydroxyl
The substances such as free radical, enable oxidant faster more fully to carry out oxidation under titanium deoxide catalyst, and realization is waved
Body of getting angry decomposes.Therefore, manganese dioxide can complete different promoting catalysis, preferably under two kinds of different catalytic way
Realize concerted catalysis effect.
(4) the application uses porous material for carrier, can be realized the absorption to exhaust gas, and the exhaust gas after absorption concentrates on
It is decomposed under the action of catalyst activity component and co-catalyst, realizes higher catalytic efficiency, and can mention using carrier
The specific surface area of high catalyst activity component can be realized the promotion of catalytic efficiency while reducing catalyst cost.
Specific embodiment
More detailed explanation and explanation are made to technical solution of the present invention and advantage below.It should be understood that saying
The content presented in bright book and specific embodiment, just to clearly illustrate technical solution of the present invention and its excellent
Point, is not construed as limiting protection scope of the present invention.Those skilled in the art can on the basis of specification disclosure,
For it is various it is reasonable changed after technical solution, as long as it does not depart from the spirit of the invention, the skill after various change
Art scheme is included within protection scope of the present invention.
Embodiment 1
It disperses 5g modified catalyst and 5g spansule in 10g water and obtains additive mixed liquor；
Additive mixed liquor is added in the basis 80g emulsified asphalt (solid content 60%), is uniformly mixed, it is useless to obtain degradation
The emulsified asphalt of gas；
Wherein, 85g molecular sieve (MCM-41) is impregnated in containing 10g (in terms of titanium dioxide) titanium tetrachloride, 1g (with three oxygen
Change two iron meters) dispersion liquid of iron chloride and 30min is stirred, sodium hydroxide, which is added, makes dispersion liquid pH value reach 12, continue to stir 1h,
The first catalyst is obtained through air calcination 3h at filtering, 100 DEG C of dry 3h, 550 DEG C, the first catalyst is impregnated in containing 4g
In the dispersion liquid of (in terms of manganese dioxide) manganese acetate, filtering after dipping, 100 DEG C of dry 3h, air calcination 3h is changed at 550 DEG C
Property catalyst.
Wherein, 10g sodium alginate is dissolved in the solution of 15% hydrogen peroxide of 1L and obtains mixed liquor, which is led to
In the coagulation bath for the calcium chloride that the syringe needle for crossing 0.2mm instills 2%, the spansule containing hydrogenperoxide steam generator is obtained.
Embodiment 2
It disperses 10g modified catalyst and 1g spansule in 15g water and obtains additive mixed liquor；
Additive mixed liquor is added in the basis 74g emulsified asphalt (solid content 60%), is uniformly mixed, it is useless to obtain degradation
The emulsified asphalt of gas；
Wherein, 73g molecular sieve (MCM-41) is impregnated in containing 20g (in terms of titanium dioxide) titanium tetrachloride, 4g (with three oxygen
Change two iron meters) dispersion liquid of iron chloride and 30min is stirred, sodium hydroxide, which is added, makes dispersion liquid pH value reach 12, continue to stir 1h,
The first catalyst is obtained through air calcination 3h at filtering, 100 DEG C of dry 3h, 550 DEG C, the first catalyst is impregnated in containing 3g
In the dispersion liquid of (in terms of manganese dioxide) manganese acetate, filtering after dipping, 100 DEG C of dry 3h, air calcination 3h is changed at 550 DEG C
Property catalyst.
Wherein, 5g sodium alginate is dissolved in the solution of 20% hydrogen peroxide of 1L and obtains mixed liquor, which is led to
In the coagulation bath for the calcium chloride that the syringe needle for crossing 0.2mm instills 2%, the spansule containing hydrogenperoxide steam generator is obtained.
Embodiment 3
It disperses 1g modified catalyst and 10g spansule in 20g water and obtains additive mixed liquor；
Additive mixed liquor is added in the basis 69g emulsified asphalt (solid content 70%), is uniformly mixed, it is useless to obtain degradation
The emulsified asphalt of gas；
Wherein, by 84.5g molecular sieve (MCM-41) be impregnated in containing 5g (in terms of titanium dioxide) titanium tetrachloride, 0.5g (with
Di-iron trioxide meter) iron chloride dispersion liquid and stir 30min, be added sodium hydroxide so that dispersion liquid pH value is reached 12, continue to stir
1h is mixed, the first catalyst is obtained through air calcination 3h at filtering, 100 DEG C of dry 3h, 550 DEG C, the first catalyst is impregnated in and is contained
In the dispersion liquid for having 10g (in terms of manganese dioxide) manganese acetate, filtering after dipping, 100 DEG C of dry 3h, air calcination 3h at 550 DEG C
Obtain modified catalyst.
Wherein, 15g sodium alginate is dissolved in the solution of 10% hydrogen peroxide of 1L and obtains mixed liquor, which is led to
In the coagulation bath for the calcium chloride that the syringe needle for crossing 0.2mm instills 2%, the spansule containing hydrogenperoxide steam generator is obtained.
Comparative example 1
It is same as Example 1, but it is not added with modified catalyst and spansule.
Comparative example 2
It is same as Example 1, but it is not added with modified catalyst.
Comparative example 3
It is same as Example 1, but it is not added with spansule.
Comparative example 4
It is same as Example 1, but do not include modifying agent in modified catalyst.
Comparative example 5
It is same as Example 1, but do not include auxiliary agent in modified catalyst.
For automobile exhaust gas simulated experiment: the configured emulsified asphalt of 5g is uniformly coated to the one of the sheet glass of 5cm × 5cm
On face, 16h is carried out in 30 DEG C of baking ovens, obtains solidification pitch sheet glass.The solidification pitch sheet glass is put into glass tube reaction
In device, it is passed through the nitrogen of the formaldehyde containing 300ppm in glass pipe reactor one end, so that gas after solidification pitch sheet glass by reaching
To the reactor other end, content of formaldehyde is detected in the reactor other end, wherein gas flow rate is 100mL/min, and reactor is can
In light-exposed.
For pitch volatilization exhaust gas simulated experiment: the configured emulsified asphalt of 5g is uniformly coated to the sheet glass of 5cm × 5cm
One side on, carry out 5h in 30 DEG C of baking ovens, obtain just solidify pitch sheet glass.First solidification pitch sheet glass is put into 60 DEG C to open
In mouth reactor, the concentration of VOCs in reactor is detected by VOCs detector afterwards at regular intervals.
1 experimental result of table
By comparing embodiment 1-3, it can be found that the present invention degrades, exhaust gas emulsified asphalt can be good at leading to comparative example 1
The pernicious gas of photocatalysis purification motor vehicle emission is crossed, while catalysed oxidn purifying pitch volatile emission can be passed through
Pernicious gas.The application can be realized the same catalyst and play the role of different catalysts in different location, by separate sources
Exhaust gas is purified, and catalyst cost is saved, and improves the effect of purification exhaust gas.It can by comparing embodiment 1 and comparative example 2
With discovery, not adding modified catalyst causes almost be cleaned in the vehicle exhaust of asphalt surface, discharges in spansule
Oxidant can purifying pitch volatilization gas cause purification efficiency to decline but due to the presence of not no oxidation catalyst.
By comparing embodiment 1 and comparative example 3 it can be found that the missing of spansule there almost is not the photocatalysis performance of modified catalyst
Have an impact, but due to not having oxidant presence, modified catalyst almost cannot achieve catalysed oxidn, it therefore, can hardly
The pernicious gas of purifying pitch volatilization.By comparing embodiment 1 and comparative example 4 it can be found that the effect of modifying agent is doping two
Titanium oxide energy level can be reacted under visible light, if not using modifying agent, titanium dioxide is under visible light
The reason of catalytic effect is had a greatly reduced quality, and decomposed formaldehyde still is able to may be to have a small amount of ultraviolet light in light source, or be catalyzed
Agent aid plays the role of partially modified.Influence of the missing of modifying agent to purifying pitch volatilization exhaust gas is little.By comparing reality
Example 1 and comparative example 5 are applied it can be found that auxiliary agent manganese dioxide is when modified catalyst is as photochemical catalyst, it may be to titanium dioxide
There is reduction energy level by a small margin, so that photocatalysis effect has promotion by a small margin；And auxiliary agent manganese dioxide is urged in modification
When agent is as oxidation catalyst, the effect for promoting oxidant to decompose is very crucial, can significantly promote purifying pitch and wave
Send out the effect of exhaust gas.Same auxiliary agent is played the role of difference when different catalysis are reacted, and is saving the same of catalyst cost
When can preferably realize catalytic effect.
A kind of emulsified asphalt for the exhaust gas that can degrade of the present application, passes through the catalyst and energy of addition specific components
It is enough sustained the spansule of oxidant, the effect of two kinds of exhaust gas can be purified by realizing a kind of catalyst.The catalyst can
It, also can be real while pitch body is mutually used as oxidation catalyst, reduces catalyst cost in asphalt surface as photochemical catalyst
The effect of exhaust gas collaboration removal is showed.
Although the content of present invention includes specific embodiment, to those skilled in the art it is apparent that without departing from
In the case where the invention element or scope of present claims and its equivalent technical solutions, various shapes can be made to these embodiments
Replacement or variation in formula and in details.Embodiment described herein should be considered only in descriptive sense, be not intended to limit
The purpose of system.The description of feature and aspect in each example is deemed applicable to the similar features in other embodiments
And aspect.Therefore, the scope of the present invention should not be by specifically describing to be limited, but by the limit of claim technical solution
It is fixed, and all changes in the range of present claims and its equivalent are interpreted to be included in technical solution of the present invention
Within.
Claims (10)
1. a kind of emulsified asphalt for exhaust gas of degrading, is made by the steps:
Modified catalyst and sustained release capsules disperse Yu Shuizhong are obtained into additive mixed liquor；
Additive mixed liquor is added in basic emulsified asphalt, is uniformly mixed, the emulsified asphalt of degradation exhaust gas is obtained；
Wherein, modified catalyst is using porous material as carrier, using the titanium dioxide of modifying agent doping as active component, with titanium dioxide
Manganese is auxiliary agent；The modified catalyst can carry out light-catalyzed reaction under visible light, and be able to carry out catalytic oxidation；Sustained release
Contain oxidant in capsule.
2. the emulsified asphalt of degradation exhaust gas according to claim 1, in the emulsified asphalt for exhaust gas of degrading, modified catalyst
Mass content is 0.1-10%, and the mass content of spansule is 1-10%, additive mixed liquor and basic emulsified asphalt quality
Than for 15-35:85-65.
3. it is according to claim 1 degradation exhaust gas emulsified asphalt, by carrier impregnation in containing TiO 2 precursor, change
Property agent presoma dispersion liquid and stirring, be added alkaline matter after continue to stir, obtain the first catalysis through filtering, drying, calcining
First catalyst is impregnated in the dispersion liquid containing manganese dioxide presoma by agent, filters after dipping, is dry, calcining is changed
Property catalyst.
4. the emulsified asphalt of degradation exhaust gas according to claim 3, in modified catalyst, carrier is selected from active carbon or molecule
Sieve, preferred molecular sieve；TiO 2 precursor is selected from titanium tetrachloride or butyl titanate；The presoma of modifying titanium dioxide selects
From iron chloride or tin tetrachloride, manganese dioxide presoma is selected from manganese sulfate or manganese acetate.
5. the emulsified asphalt of degradation exhaust gas according to claim 4, in modified catalyst, the mass content of carrier is 70-
95%, modifying titanium dioxide content is 5-25%, and manganese dioxide content is 3-10%.
6. the emulsified asphalt of degradation exhaust gas according to claim 5, in modifying titanium dioxide, modifying agent and titanium dioxide
Mass ratio is 5-20:100.
7. the emulsified asphalt of degradation exhaust gas according to claim 1, the wall material of spansule are dissolved in the solution of oxidant
In obtain mixed liquor, by the mixed liquor by syringe needle instill coagulation bath in, obtain the solution spansule containing oxidant.
8. the emulsified asphalt of degradation exhaust gas according to claim 7, the wall material of spansule is sodium alginate, and oxidant is molten
Liquid is aqueous hydrogen peroxide solution, and coagulation bath is calcium chloride solution.
9. the emulsified asphalt of degradation exhaust gas according to claim 8, the mass concentration for aoxidizing aqueous solution of hydrogen is 5%-20%.
10. the emulsified asphalt of degradation exhaust gas according to claim 1, the quality solid content of basic emulsified asphalt are 60-
70%.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111518399A (en) * | 2019-11-29 | 2020-08-11 | 山东天汇路桥有限公司 | Reaction type self-cleaning pavement cementing material based on photocatalysis and preparation method thereof |
| CN112341830A (en) * | 2020-11-09 | 2021-02-09 | 武汉理工大学 | Preparation method of self-packaging calcium alginate asphalt self-healing capsule |
| CN113908834A (en) * | 2021-08-11 | 2022-01-11 | 万华化学集团股份有限公司 | Preparation method of aldehyde-removing catalyst and refining method of polyether polyol |
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2019
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111518399A (en) * | 2019-11-29 | 2020-08-11 | 山东天汇路桥有限公司 | Reaction type self-cleaning pavement cementing material based on photocatalysis and preparation method thereof |
| CN112341830A (en) * | 2020-11-09 | 2021-02-09 | 武汉理工大学 | Preparation method of self-packaging calcium alginate asphalt self-healing capsule |
| CN113908834A (en) * | 2021-08-11 | 2022-01-11 | 万华化学集团股份有限公司 | Preparation method of aldehyde-removing catalyst and refining method of polyether polyol |
| CN113908834B (en) * | 2021-08-11 | 2023-03-03 | 万华化学集团股份有限公司 | Preparation method of aldehyde-removing catalyst and refining method of polyether polyol |
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