CN109078390A - A kind of active carbon base strainer and preparation method thereof purifying benzene - Google Patents
A kind of active carbon base strainer and preparation method thereof purifying benzene Download PDFInfo
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- CN109078390A CN109078390A CN201810423109.4A CN201810423109A CN109078390A CN 109078390 A CN109078390 A CN 109078390A CN 201810423109 A CN201810423109 A CN 201810423109A CN 109078390 A CN109078390 A CN 109078390A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
Abstract
The present invention relates to waste gas purification technical fields, more particularly to a kind of active carbon base strainer and preparation method thereof for purifying benzene, the preparation method comprises the following steps: organic titanate, transition metal salt being uniformly mixed in a solvent, porous activated carbon, CH is then added3NH3I and silane coupling agent are sealed thermal response, obtain modified porous active carbon；In a solvent after mixing by modified porous active carbon and diallyl dimethyl ammoniumchloride, graphene oxide suspension and reducing agent is added, obtains modified porous active carbon, obtain the active carbon-supported catalyst of absorption waste gas containing benzene；Active carbon-supported catalyst is added in nylon66 fiber lotion, and carries out spinning, weaving, sizing, is purified the active carbon base strainer of benzene.The active carbon base strainer of purification benzene of the invention can adsorb the benzene in exhaust gas, and carry out catalysis reduction to benzene, can quickly and effectively purify the benzene in exhaust gas.
Description
Technical field
The present invention relates to waste gas purification technical fields, and in particular to it is a kind of purify benzene active carbon base strainer and its preparation side
Method.
Background technique
Atmosphere pollution is China's one of problem of environmental pollution outstanding at present, and wherein volatile organic matter is atmosphere pollution
Important sources.Largely the industrial waste gas containing volatile organic matter is discharged into atmosphere, causes the bad border quality decline of atmosphere, while also giving
Human health brings harm, and the benzene,toluene,xylene as Typical Volatile Organic exhaust gas representativeness pollutant (contains three
Benzene homologues), human body can be entered by respiratory tract and skin, the systems such as breathing, blood, the liver of people and organ can be made to cause temporarily
When property or permanent lesion, especially benzene naphthalene pyrene class polycyclic aromatic hydrocarbon can make the human body directly carcinogenic great attention to cause the mankind.
So becoming a major issue in current atmospheric pollution control to the improvement of three benzene homologues.
Disruptive method is mostly used such as to be catalyzed burning, electricity three benzene homologues exhaust gas of low concentration, non-recovery value at present
Dizzy method or plasma method；And middle and high concentration, there are the volatile organic compounds for recycling and being worth then as far as possible using non-broken
Bad property method is such as adsorbed and is absorbed.Absorption method is a kind of common method of the processing containing volatile organic matter, wherein activated carbon
Adsorption applications are the most extensive, but it is easy to generate secondary pollution, and resistance is very high, causes running expense higher.Therefore, it seeks
Look for a kind of adsorbent for efficiently administering three benzene homologues exhaust gas particularly important.
Summary of the invention
It is of the existing technology the purpose of the invention is to overcome the problems, such as, a kind of active carbon base strainer purifying benzene is provided
And preparation method thereof, the active carbon base strainer of the purification benzene can adsorb the benzene in exhaust gas, realize the enrichment of benzene in exhaust gas, and right
Benzene carries out catalysis reduction, can quickly and effectively purify the benzene in exhaust gas, guarantees the safety of air, provides the life of health for people
Environment living.
To achieve the goals above, the present invention provide it is a kind of purify benzene active carbon base strainer preparation method, including with
Lower step:
(1) by citrus plant pericarp in atmosphere of inert gases at 100~160 DEG C annealing 2~for 24 hours, then heat up
To 300~700 DEG C of 1~8h of double annealing, porous activated carbon is obtained；
(2) organic titanate, transition metal salt and urea are uniformly mixed in a solvent, porous active is then added
Charcoal, CH3NH3I and silane coupling agent then seal 2~6h of thermal response at 100~160 DEG C, obtain modified porous active carbon；
(3) in a solvent after mixing by modified porous active carbon and diallyl dimethyl ammoniumchloride, ultrasound point
1~3h is dissipated, mixed system is obtained, graphene oxide suspension and reducing agent are then added into the mixed system, continues ultrasound
Disperse 2~6h and obtains active carbon-supported catalyst after centrifugation, washing, drying；
(4) above-mentioned active carbon-supported catalyst is added in nylon66 fiber lotion and is uniformly mixed, then carried out electrostatic spinning and obtain
Polymer fiber weaves polymer fiber to obtain filter cloth, is then cut, folded to filter cloth, and then injecting glue is formed,
It is purified the active carbon base strainer of benzene.
The present invention also provides a kind of active carbon base strainers of purification benzene being prepared according to the above method.
Through the above technical solutions, the present invention is by porous carbon and organic titanate, transition metal salt and CH3NH3I reaction, energy
It is enough to generate CH in the hole of porous carbon3NH3The modification TiO that I and metallic element are modified altogether2, to improve the visible of titanium dioxide
Optical response range and response intensity improve the catalytic efficiency of titanium dioxide；Then by modified porous active carbon and herbaceous plant
Ultrasound and microwave treatment are carried out, herbaceous plant particle is entered in the hole of porous carbon, modified porous active carbon is improved
To the degradation efficiency of benzene.The active carbon-supported catalyst pore structure rich in of absorption waste gas containing benzene of the invention, specific surface
Product is high, can be realized the enrichment of benzene in exhaust gas, and carry out situ catalytic to it in enriched site, has removal rate high, inhales
Attached resistance is small, and not will cause secondary pollution, guarantees the safety of air, provides the living environment of health for people.
Specific embodiment
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
The present invention provides a kind of active carbon base strainer for purifying benzene, is made of the substance of following parts by weight: citrus plant
50~100 parts by weight of pericarp, 6~24 parts by weight of organic titanate, 0.2~1 parts by weight of transition metal salt, CH3NH32~8 weight of I
Measure part, 1~8 parts by weight of urea, 3~15 parts by weight of graphene oxide, 2~5 parts by weight of reducing agent, diallyl dimethyl chlorine
Change 5~10 parts by weight of ammonium, 3~5 parts by weight of silane coupling agent, 50~120 parts by weight of solvent, 200~500 weight of nylon66 fiber lotion
Part.Under optimum condition, the active carbon base strainer of the purification benzene is made: citrus plant pericarp of the substance of following parts by weight
60~80 parts by weight, 12~20 parts by weight of organic titanate, 0.2~0.6 parts by weight of transition metal salt, 3~6 weight of CH3NH3I
Part, 2~6 parts by weight of urea, 5~12 parts by weight of graphene oxide, 2~5 parts by weight of reducing agent, diallyl dimethyl chlorination
5~10 parts by weight of ammonium, 3~5 parts by weight of silane coupling agent, 50~120 parts by weight of solvent, 200~500 weight of nylon66 fiber lotion
Part.
The present invention also provides a kind of preparation methods of the active carbon base strainer of purification benzene, comprising the following steps:
(1) by citrus plant pericarp in atmosphere of inert gases at 100~160 DEG C annealing 2~for 24 hours, then heat up
To 300~700 DEG C of 1~8h of double annealing, porous activated carbon is obtained；
(2) organic titanate, transition metal salt and urea are uniformly mixed in a solvent, porous active is then added
Charcoal, CH3NH3I and silane coupling agent then seal 2~6h of thermal response at 100~160 DEG C, obtain modified porous active carbon；
(3) in a solvent after mixing by modified porous active carbon and diallyl dimethyl ammoniumchloride, ultrasound point
1~3h is dissipated, mixed system is obtained, graphene oxide suspension and reducing agent are then added into the mixed system, continues ultrasound
Disperse 2~6h and obtains active carbon-supported catalyst after centrifugation, washing, drying；
(4) above-mentioned active carbon-supported catalyst is added in nylon66 fiber lotion and is uniformly mixed, then carried out electrostatic spinning and obtain
Polymer fiber weaves polymer fiber to obtain filter cloth, is then cut, folded to filter cloth, and then injecting glue is formed,
It is purified the active carbon base strainer of benzene.
Pore structure rich in citrus plant pericarp, material feedstock is from a wealth of sources, after being calcined to it, energy
Enough to generate the porous activated carbon with high-specific surface area, high adsorption, the citrus plant pericarp can be orange peel, lemon
At least one of skin, fragrant citrus pericarp, pomelo peel and Pericarpium Citri.
By by porous carbon and organic titanate, transition metal salt and CH in the present invention3NH3I reaction, can be in porous carbon
Hole in generate CH3NH3The modification TiO that I and metallic element are modified altogether2, avoid TiO2Poorly conductive and light induced electron and
Hole is easy the shortcomings that recombination, to improve the visible light-responded range and response intensity of titanium dioxide, improves titanium dioxide
Catalytic efficiency；Under optimum condition, the mass ratio of the organic titanate and transition metal salt is (30~100): 1.Preferred stripe
Under part, the organic titanate is selected from tetraethyl titanate, tetramethoxy titanate ester, tetraisopropyl titanate, tetrabutyl titanate, metatitanic acid four
At least one of N-butyl.The transition metal salt is selected from soluble ferric iron salt, soluble nickel salt, soluble zinc salt, solubility
At least one of cobalt salt, soluble manganese salt, soluble silver salt, soluble molybdenum salt.
Under optimum condition, the silane coupling agent is selected from aminopropyl triethoxysilane, aminopropyl trimethoxysilane, 2-
Aminoethyl amino propyl trimethoxy silane, divinyl triammonium base propyl trimethoxy silicane, aminoethylaminopropyl methyl dimethoxy oxygen
In base silane, aminoethylaminopropyl triethoxysilane, urea propyl-triethoxysilicane and urea propyl trimethoxy silicane extremely
Few one kind.
It, can by mixing modified porous active carbon in a solvent with diallyl dimethyl ammoniumchloride in the present invention
So that diallyl dimethyl ammoniumchloride ionizes, positively charged organic filler is generated, which can inhale
It is attached to modified porous activated carbon surface, and electrostatic interaction occurs with positively charged redox graphene, so that graphene oxide
It is further compound with the progress of modified porous active carbon, reducing agent is then added, graphene oxide is reduced into redox graphite
Alkene, to improve material to the catalytic performance of benzene.Under optimum condition, the reducing agent is selected from hydrazine hydrate, sodium borohydride and anti-bad
At least one of hematic acid.
Under optimum condition, the solvent is in glycerine, ethyl alcohol, isopropanol, propylene glycol, ethylene glycol, water and n-butanol
At least one.
The present invention also provides a kind of active carbon base strainers of purification benzene being prepared according to the above method.
The present invention will be described in detail by way of examples below.In following embodiment, electrostatic spinning process, polymer
The textile technology of fiber, the cutting of filter cloth, folding, injecting glue setting process is all technology well known to fields, and the present invention exists
This is not being repeated.
Embodiment 1
A kind of active carbon base strainer purifying benzene, is made: 75 parts by weight of lemon peel, metatitanic acid four of the substance of following parts by weight
16 parts by weight of ethyl ester, 0.4 parts by weight of cobalt acetate, CH3NH35 parts by weight of I, 4 parts by weight of urea, 8 parts by weight of graphene oxide, water
Close 4 parts by weight of hydrazine, 8 parts by weight of diallyl dimethyl ammoniumchloride, 4 weight of divinyl triammonium base propyl trimethoxy silicane
Part, 120 parts by weight of water, 250 parts by weight of nylon66 fiber lotion.
The preparation method of the active carbon-supported catalyst of the absorption waste gas containing benzene, comprising the following steps:
(1) lemon peel is put into Muffle furnace in argon atmosphere at 100 DEG C dry 20h, then is warming up to 450 DEG C, forged
6h is burnt, porous activated carbon is obtained；
(2) tetraethyl titanate, cobalt acetate and urea are uniformly mixed in water, then be added porous activated carbon,
CH3NH3I and divinyl triammonium base propyl trimethoxy silicane then seal thermal response 4h at 150 DEG C, obtain modified porous work
Property charcoal；
(3) in water after mixing by modified porous active carbon and diallyl dimethyl ammoniumchloride, ultrasonic disperse
1.5h obtains mixed system, and graphene oxide and hydrazine hydrate are then added into the mixed system, continues ultrasonic disperse 2h, from
After the heart, washing, drying, active carbon-supported catalyst is obtained；
(4) above-mentioned active carbon-supported catalyst is added in nylon66 fiber lotion and is uniformly mixed, then carried out electrostatic spinning and obtain
Polymer fiber weaves polymer fiber to obtain filter cloth, is then cut, folded to filter cloth, and then injecting glue is formed,
It is purified the active carbon base strainer of benzene.
Embodiment 2
A kind of active carbon-supported catalyst adsorbing waste gas containing benzene, is made: 80 weight of pomelo peel of the substance of following parts by weight
Part, 12 parts by weight of tetramethoxy titanate ester, 0.4 parts by weight of silver nitrate, CH3NH33.2 parts by weight of I, 6 parts by weight of urea, graphene oxide
5 parts by weight, 5 parts by weight of sodium borohydride, 10 parts by weight of diallyl dimethyl ammoniumchloride, urea propyl trimethoxy silicane 4.5
Parts by weight, 100 parts by weight of water, 300 parts by weight of nylon66 fiber lotion.
The preparation method of the active carbon-supported catalyst of the absorption waste gas containing benzene, comprising the following steps:
(1) pomelo peel is put into Muffle furnace in argon atmosphere at 120 DEG C dry 12h, then is warming up to 500 DEG C, forged
4h is burnt, porous activated carbon is obtained；
(2) tetramethoxy titanate ester, silver nitrate and urea are uniformly mixed in water, then be added porous activated carbon,
CH3NH3I and urea propyl trimethoxy silicane then seal thermal response 4h at 120 DEG C, obtain active carbon-supported catalyst；
(4) above-mentioned active carbon-supported catalyst is added in nylon66 fiber lotion and is uniformly mixed, then carried out electrostatic spinning and obtain
Polymer fiber weaves polymer fiber to obtain filter cloth, is then cut, folded to filter cloth, and then injecting glue is formed,
It is purified the active carbon base strainer of benzene.
Embodiment 3
A kind of active carbon-supported catalyst adsorbing waste gas containing benzene, is made: 60 weight of orange peel of the substance of following parts by weight
Part, 24 parts by weight of tetra-n-butyl titanate, 0.6 parts by weight of sodium molybdate, CH3NH35.3 parts by weight of I, 2 parts by weight of urea, graphite oxide
12 parts by weight of alkene, 2 parts by weight of sodium borohydride, 5 parts by weight of diallyl dimethyl ammoniumchloride, aminoethylaminopropyl triethoxy
3.5 parts by weight of silane, 150 parts by weight of ethylene glycol, 200 parts by weight of nylon66 fiber lotion.
The preparation method of the active carbon-supported catalyst of the absorption waste gas containing benzene, comprising the following steps:
(1) orange peel is put into Muffle furnace in argon atmosphere at 120 DEG C dry 5h, then is warming up to 400 DEG C, calcined
3h obtains porous activated carbon；
(2) tetra-n-butyl titanate, sodium molybdate and urea are uniformly mixed in ethylene glycol, porous active is then added
Charcoal, CH3NH3I and aminoethylaminopropyl triethoxysilane then seal thermal response 3h at 150 DEG C, obtain modified porous work
Property charcoal；
(3) by modified porous active carbon and diallyl dimethyl ammoniumchloride in ethylene glycol after mixing, ultrasound
Disperse 2h, obtain mixed system, graphene oxide and sodium borohydride are then added into the mixed system, continues ultrasonic disperse
3h obtains active carbon-supported catalyst after centrifugation, washing, drying；
(4) above-mentioned active carbon-supported catalyst is added in nylon66 fiber lotion and is uniformly mixed, then carried out electrostatic spinning and obtain
Polymer fiber weaves polymer fiber to obtain filter cloth, is then cut, folded to filter cloth, and then injecting glue is formed,
It is purified the active carbon base strainer of benzene.
Embodiment 4
A kind of active carbon-supported catalyst adsorbing waste gas containing benzene, is made: 100 weight of fragrant citrus pericarp of the substance of following parts by weight
Part, 20 parts by weight of tetrabutyl titanate, 0.2 parts by weight of zinc chloride, CH3NH32 parts by weight of I, 8 parts by weight of urea, graphene oxide
15 parts by weight, 5 parts by weight of ascorbic acid, 5 parts by weight of diallyl dimethyl ammoniumchloride, aminoethylaminopropyl triethoxysilicane
3 parts by weight of alkane, 200 parts by weight of ethyl alcohol, 300 parts by weight of nylon66 fiber lotion.
The preparation method of the active carbon-supported catalyst of the absorption waste gas containing benzene, comprising the following steps:
(1) fragrant citrus pericarp is put into Muffle furnace in argon atmosphere at 160 DEG C dry 2h, then is warming up to 700 DEG C of calcinings
1h obtains porous activated carbon；
(2) tetrabutyl titanate, zinc chloride and urea are uniformly mixed in ethanol, porous active is then added
Charcoal, CH3NH3I and aminoethylaminopropyl triethoxysilane then seal thermal response 6h at 160 DEG C, obtain modified porous work
Property charcoal；
(3) in ethanol after mixing by modified porous active carbon and diallyl dimethyl ammoniumchloride, ultrasound point
3h is dissipated, mixed system is obtained, graphene oxide and ascorbic acid are then added into the mixed system, continues ultrasonic disperse 2h,
After centrifugation, washing, drying, active carbon-supported catalyst is obtained；
(4) above-mentioned active carbon-supported catalyst is added in nylon66 fiber lotion and is uniformly mixed, then carried out electrostatic spinning and obtain
Polymer fiber weaves polymer fiber to obtain filter cloth, is then cut, folded to filter cloth, and then injecting glue is formed,
It is purified the active carbon base strainer of benzene.
Embodiment 5
A kind of active carbon-supported catalyst adsorbing waste gas containing benzene, is made: 50 weight of Pericarpium Citri of the substance of following parts by weight
Measure part, 24 parts by weight of quanmethyl silicate, 1 parts by weight of cobalt chloride, CH3NH38 parts by weight of I, 1 parts by weight of urea, graphene oxide 3
Parts by weight, 2 parts by weight of ascorbic acid, 10 parts by weight of diallyl dimethyl ammoniumchloride, 5 weight of urea propyl-triethoxysilicane
Part, 100 parts by weight of isopropanol, 500 parts by weight of nylon66 fiber lotion.
The preparation method of the active carbon-supported catalyst of the absorption waste gas containing benzene, comprising the following steps:
(1) Pericarpium Citri is put into Muffle furnace in argon atmosphere and is dried for 24 hours at 100 DEG C, then be warming up to 300 DEG C,
8h is calcined, porous activated carbon is obtained；
(2) quanmethyl silicate, cobalt chloride and urea are uniformly mixed in isopropanol, porous active is then added
Charcoal, CH3NH3I and urea propyl-triethoxysilicane then seal thermal response 2h at 160 DEG C, obtain modified porous active carbon；
(3) by modified porous active carbon and diallyl dimethyl ammoniumchloride in isopropanol after mixing, ultrasound
Disperse 1h, obtain mixed system, graphene oxide and ascorbic acid are then added into the mixed system, continues ultrasonic disperse
6h obtains active carbon-supported catalyst after centrifugation, washing, drying；
(4) above-mentioned active carbon-supported catalyst is added in nylon66 fiber lotion and is uniformly mixed, then carried out electrostatic spinning and obtain
Polymer fiber weaves polymer fiber to obtain filter cloth, is then cut, folded to filter cloth, and then injecting glue is formed,
It is purified the active carbon base strainer of benzene.
Comparative example 1
A kind of active carbon-supported catalyst adsorbing waste gas containing benzene, is made: 75 weight of lemon peel of the substance of following parts by weight
Part, 16 parts by weight of tetraethyl titanate, 0.4 parts by weight of cobalt acetate, CH3NH35 parts by weight of I, 4 parts by weight of urea, graphene oxide 8
Parts by weight, 4 parts by weight of hydrazine hydrate, 8 parts by weight of diallyl dimethyl ammoniumchloride, divinyl triammonium base propyl trimethoxy silicon
4 parts by weight of alkane, 120 parts by weight of water.
The preparation method of the active carbon-supported catalyst of the absorption waste gas containing benzene, comprising the following steps:
(1) lemon peel is put into Muffle furnace in argon atmosphere at 100 DEG C dry 20h, then is warming up to 450 DEG C, forged
6h is burnt, porous activated carbon is obtained；
(2) tetraethyl titanate, cobalt acetate and urea are uniformly mixed in water, porous activated carbon and two is then added
Ethylene triamido propyl trimethoxy silicane then seals thermal response 4h at 150 DEG C, obtains modified porous active carbon；
(3) in water after mixing by modified porous active carbon and diallyl dimethyl ammoniumchloride, ultrasonic disperse
1.5h obtains mixed system, and graphene oxide and hydrazine hydrate are then added into the mixed system, continues ultrasonic disperse 2h, from
After the heart, washing, drying, active carbon-supported catalyst is obtained；
(4) above-mentioned active carbon-supported catalyst is added in nylon66 fiber lotion and is uniformly mixed, then carried out electrostatic spinning and obtain
Polymer fiber weaves polymer fiber to obtain filter cloth, is then cut, folded to filter cloth, and then injecting glue is formed,
It is purified the active carbon base strainer of benzene.
Comparative example 2
A kind of active carbon-supported catalyst adsorbing waste gas containing benzene, is made: 75 weight of lemon peel of the substance of following parts by weight
Part, 16 parts by weight of tetraethyl titanate, 0.4 parts by weight of cobalt acetate, CH3NH35 parts by weight of I, 4 parts by weight of urea, divinyl triammonium base
4 parts by weight of propyl trimethoxy silicane, 120 parts by weight of water.
The preparation method of the active carbon-supported catalyst of the absorption waste gas containing benzene, comprising the following steps:
(1) lemon peel is put into Muffle furnace in argon atmosphere at 100 DEG C dry 20h, then is warming up to 450 DEG C, forged
6h is burnt, porous activated carbon is obtained；
(2) tetraethyl titanate, cobalt acetate and urea are uniformly mixed in water, then be added porous activated carbon,
CH3NH3I and divinyl triammonium base propyl trimethoxy silicane then seal thermal response 4h, centrifugation, washing, drying at 150 DEG C
Afterwards, active carbon-supported catalyst is obtained；
(4) above-mentioned active carbon-supported catalyst is added in nylon66 fiber lotion and is uniformly mixed, then carried out electrostatic spinning and obtain
Polymer fiber weaves polymer fiber to obtain filter cloth, is then cut, folded to filter cloth, and then injecting glue is formed,
It is purified the active carbon base strainer of benzene.
Experiment test:
Purification of the active carbon-supported catalyst of absorption waste gas containing benzene in 1-5 of the embodiment of the present invention and comparative example 1-2 to benzene
Performance evaluation carries out in the straight type polytetrafluoroethylene (PTFE) pipe reactor of Φ 20mm, long 200mm, will adsorb the active carbon base of waste gas containing benzene
Adsorbent is added in polytetrafluoroethylene (PTFE) pipe reactor, unstripped gas composition are as follows: benzene concentration 300mg/m3, remaining is air.Reaction exists
It is carried out under 25 DEG C of atmospheric pressure environments, reactor gas space velocity (GHSV) is 3000h-1, experimental result is as shown in table 1.
Table 1: the purifying property of waste-gas adsorbant in embodiment and comparative example to benzene
The preferred embodiment of the present invention has been described above in detail, and still, the present invention is not limited thereto.In skill of the invention
In art conception range, can with various simple variants of the technical solution of the present invention are made, including each technical characteristic with it is any its
Its suitable method is combined, and it should also be regarded as the disclosure of the present invention for these simple variants and combination, is belonged to
Protection scope of the present invention.
Claims (7)
1. a kind of preparation method for the active carbon base strainer for purifying benzene, which comprises the following steps:
(1) by citrus plant pericarp in atmosphere of inert gases at 100~160 DEG C annealing 2~for 24 hours, be then warming up to 300
~700 DEG C of 1~8h of double annealing, obtain porous activated carbon；
(2) organic titanate, transition metal salt and urea are uniformly mixed in a solvent, then be added porous activated carbon,
CH3NH3I and silane coupling agent then seal 2~6h of thermal response at 100~160 DEG C, obtain modified porous active carbon；
(3) in a solvent after mixing by modified porous active carbon and diallyl dimethyl ammoniumchloride, ultrasonic disperse 1~
3h obtains mixed system, and graphene oxide suspension and reducing agent are then added into the mixed system, continues ultrasonic disperse 2
~6h obtains active carbon-supported catalyst after centrifugation, washing, drying；
(4) above-mentioned active carbon-supported catalyst is added in nylon66 fiber lotion and is uniformly mixed, then carried out electrostatic spinning and polymerize
Fibres weave polymer fiber to obtain filter cloth, are then cut, folded to filter cloth, and then injecting glue is formed, and obtain
Purify the active carbon base strainer of benzene.
2. the preparation method of the active carbon base strainer of purification benzene according to claim 1, which is characterized in that the organic titanium
Acid esters in tetraethyl titanate, tetramethoxy titanate ester, tetraisopropyl titanate, tetrabutyl titanate, tetra-n-butyl titanate at least
It is a kind of.
3. the preparation method of the active carbon base strainer of purification benzene according to claim 1, which is characterized in that the organic titanium
The mass ratio of acid esters and transition metal salt is (30~100): 1.
4. the preparation method of the active carbon base strainer of purification benzene according to claim 1, which is characterized in that the silane is even
Join agent and is selected from aminopropyl triethoxysilane, aminopropyl trimethoxysilane, 2- aminoethyl amino propyl trimethoxy silane, ammonia second
In base aminopropyltriethoxy dimethoxysilane, aminoethylaminopropyl triethoxysilane and urea propyl trimethoxy silicane at least
It is a kind of.
5. the preparation method of the active carbon base strainer of purification benzene according to claim 1, which is characterized in that the reducing agent
Selected from least one of hydrazine hydrate, sodium borohydride and ascorbic acid.
6. the preparation method of the active carbon base strainer of purification benzene according to claim 1, which is characterized in that the solvent choosing
From at least one of glycerine, ethyl alcohol, isopropanol, propylene glycol, ethylene glycol, water and n-butanol.
7. a kind of active carbon base strainer for purifying benzene, which is characterized in that system described according to claim 1~any one of 6
Preparation Method is prepared.
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